I'm an old school motorcycle dude started riding in the 70s. As much as I love my new bikes I really dislike and struggle with all the technology crammed up my ass. I don't want traction control, abs, riding modes that each have their own riding modes! Wtf? I just want to ride. I miss my old bikes with carbs and "manual" controls. I love your videos. To see the younger generation embrace the early machines and keep em going, in original condition gives hope for our planet.
I purchased this exact same bike, orange 1972 CB750 K2 brand new in 1972 (just graduated from high school) for $1820 out the door. It was one of the best bikes I’ve ever owned. Open the throttle and it screamed. But just cruise around and it purred. Can’t ever remember having a problem with it. Wonderful bike.
I have my Dad's Gold 71' Honda 750 four I will be trying to get running. came across your videos and I have been glued to them to learn all I can. Thank you! for doing these videos.
My 1st bike was a 1976 750. With my father-in-law and his 73 750 and his son on a 500 we took our first cross country from Topeka to Roesburg Oregon. I still see the 1st time seeing the Rockies later Yellowstone then the Pacific. What a great trip for this flatlander and what a great bike!
I ran a cb400f1 for 18000 miles bought from new in 1976-issues were sticking front disc calliper hinge and water ingress to coils- location was prone to attracting road spray. The calliper hinge was alloy and the pin it pivoted on was steel hence prone to seizing-addressed through stripping and copper grease. Bear in mind it was my daily ride in darkest wettest South Wales. One strange issue as failure of the frame tube due to corrosion at the prop stand bracket. It was followed by a cb550f2. I covered 62000 miles on that orange beauty over 4 years. I fitted electronic ignition and a Peter Furlong full enclosure chain case-ugly but effective in extending the life of oil sintered Izumi chains. A Cibie bright headlight conversion also improved matters. The nylon swing arm bushes were replaced with bronze items. A pig of a job-I think the 400 had grease nipples as does my current ‘03 Thunderbird. I always fancied a Difazio box section swing arm but they were super expensive. Keep an eye on the mudguards. My rears rotted through in no time-that old Welsh weather again. Rear brake cam was also prone to seizing-due again to steel to alloy interface-there’s a felt washer which you should keep oiled to keep the h2o out
I owned one of these bikes - with the four separate exhaust pipes - which makes it a CB750-K2. I bought it in 1976 from a dealer, so first registered in 1973? We (me + girlfriend) rode it round France - very steady as a Tourer.
Well thank you much! I always try to share everything. Definitely check out my 1975 barn find cb750 revival. I have a ton of videos on it as I brought it back to life and now enjoy it
Thinking about getting a classic bike from my era growing up & wasn't the best mechanic ( Even with point's electrics) but even I can kind of follow what you're doing. Which is big praise if saw me in a garage ( Fighting with spanners & screwdrivers 😁). Made me a step closer to buying my dream ( Mid life crisis) bike & won't be so freaked out by D. I. Y mechanics with people like you out there. Takes me back with mates...... " Did ya check the fuel, what sort of spark ya got " Thanks my friend 👍😁
A great demo on what to check & how to do it. No great surprise with the degradation of the plugs leads after almost 50 years. The green fuel was different, lol.
Nice to see someone having a play with these old girls. I think you should sweet talk the owner to go for electronic ignition. I did just that on my Z1s and never looked back. Keep up the good work.
Thanks Terri, I just hope he is able to put any miles on it this season. He is wise with life experience so throwing that leg over the seat is not as easy as it once was.
@@BrickHouseBuilds Tell me all about it. I'm in my 60s, but I still love taking 1 of the old girls out. To watch people's faces, it's like having a model on your arm.
I had my carbs sonically cleaned, did a basic balance myself and fitted electronic ignition. Made a heck of a difference. Only bad bit it got rid of the popping in one of the exhausts when throttling off. They never did that back in the day but it was sort of quaint for a 50 year old bike.
It was amazing to see your video on the Honda I was very impressed on your ability to fix those old classic bikes My first bike was a Honda 750 I bought it when I was 15 years old for $800.00 bucks I had the best time of my life on that bike Now I am riding the ZX14 Ninja and the Kawasaki Concourse 1400 abs still love the speed. Your like Picasso only with bike.
its amazing how much of a headache these bikes must have been for mechanics.... im amazed at all cb videos ive seen someone has always tried to repair different or find some janky repair etc
I had this exact year CB750K back in high school in the 1980s. I swapped in a Dyna S ignition in lieu of points and condensers, and accel coils and wires. They had yellow wires with orange boots, therefore, they must be better. Kidding aside, the electronic ignition conversion was the single best improvement, no more pitting points, checking dwell angles, and wondering what the difference between a good and bad condenser is. It also had Weisco 811 pistons, a Kerker 4 into 1, re-jetted the stock carbs (although 29 mm Smoothbores were the goto swap back in the day), Barnett clutch, re-valved damping rods and progressive springs up front, tapered bearings in the front stem, a trimmed front fender. I also ran all the control wires through the inside of a low rise GP handlebar. Had Orient Express perform the machining work for a 5 angle valve job ( or was that 3 angle?). Super reliable and durable. Nice work, thanks for the happy memories.
I'm typically all for upgrading and updating but this wasn't needed here. Just keeping it simple. The bike is local to me so if the owner starts seeing issues this season it can be addressed then
@@BrickHouseBuilds I hear you, it is not your project bike. Do what the customer asks. I would be scuffing the back of those side covers, mixing up some Part A Part B epoxy reinforced with some fiberglass mesh. That will stop those cracks and make it stronger than stock. Ideally you would also do some work on the front face, but that means a respray.
Fantastic video BJ! I'm in the process of resurrecting a 1975 CB 125. 2000 original miles so this is great info. Right now no spark so...Thanks again, keep 'em coming.
great video! might be worth mentioning that all the old Japanese bikes have stripped screws because they are JIS (Japanese industrial standard) which is not the same as American philips screwdrivers. *EDIT. i wrote my comment before you mentioned JIS screwdrivers... :)
Excuse me while I binge-watch your channel! Love the video-style editing. Simple and fun are good! Works and flows well. Getting nervous sweats because I want to ride my 79' so bad. Getting paint-matched bags back from the painter here soon and a top-end rebuild over the winter! I can finally tune the carbs in because the gaskets are leaking so bad lol.
I've just found this channel and doing exactly the same myself. Guilty pleasure of watching someone else work for a change. I should be in my shop as I have 3 Norton engines and 3 gearboxes requiring my attention 😱😁
Excellent diagnosis, great tips too. I had plastic jet in my Yamaha SR 500 single and it vibrated out but never stopped running until it drained the tank of fuel lol. Get shot of them if possible. And yes I did fit the jet in the first place , never again. Cheers Richie.
Great video! Thorough testing and a laundry list of things to fix. With the mangled timing advance screw I thought you missed an opportunity to talk about JIS, but there it is. And while I understand that this a service to get it running right one of the additional things I'd want to do is to fix those side covers with some plastic welding before they split in two (four?) and disappear.
Thank ya! I'm sure you are watching part two now and in that I address the cracked covers with some epoxy to at least help it last a bit longer. The right side cover was bound to break and fall off.
Great video BJ! I've been chasing ignition issues on my frankenstein XS400 for a couple weeks, finally narrowed it down to bad spark plug cables... then watched this video after. Would have saved a lot of time if I watched this first 😅 Your channel helps keeps my project motivation up! 💪
Well thank you and I'm glad it...could...have helped lol. I've learned all of this stuff by trial and error so I feel ya. I just want to pass on the stuff I learn to the next person.
Lembro bem das Hondas com essa tecnologia four. Tive oficina e mexi em algumas mas nunca desmontei o motor, apenas nas Suzuki de motor 2T. Essas eram as motos mais cobiçadas da minha época. Parabéns pelo vídeo.
I owned the CB750 and did all my own maintenance for 30 years. A couple points on points. (1) The points plate wanting to be all the way over to one side is often because the points gap is incorrect or the advance mechanism seized. To make sure, check the points cam and centrifugal advance; disassemble and re-grease. Make sure the felt oiler has oil in it. (2) For static timing, I never used a light bulb. If your work space is quiet, you can hear the tiny "tick" sound when the points open and the ignition on. But it is far better to use a timing light, that way you can check timing at both the idle speed and that the advance works correctly, by revving to 3000RPM.
Thanks for the input Rick. I've worked on and own more than a few 750s among other bikes. The advance was free and spring tension felt good. I did my best to estimate dwell angle but never mentioned it in the video. Felt was good. I've just used the bulb method many times and it works much better for visual demonstration which is important for these videos. Correct on timing light which I have but felt no need to use after setting it as you see. The bike ran like a top so I left it at that.
I was workin on my ignition one day in the driveway and realized I could hear the click. I clicked it a few times and the dang thing started! Thankfully I was in neuitral.
I took your advice and am watching these videos. Im really getting a lot of great advice on what to look for. Quick question I noticed I have oil in one of my reflectors on my forks. I’m figuring it’s a busted seal, but it still has me freaked out a little. Dude are you In Missouri or Vermont? I’m in Oklahoma bro. Anyways you rock!! See ya.
I have a 1979 cb750 four K and it's locked up tighter than a drum, but was free when I got it. Only thing I've done is rebuild the carbs and try to start it.
Enjoying the video! Wee question - when setting the "fire" timing could you set align the fire mark on the crankcase then rotate the timing board until it lights rather than trial and error it?
What I know from the old masters, when there is a little bit advance on the ignition, the motor pulls nice & hard ! I really enjoyed that channel ! Thank you from EUROPE ! Is a good idea to keep in the pocket strip of sand paper to clean the contact if file missing ! Just fold small half inch strip and put between the contacts and sand a bit .How much fuel "eat" this monster ? :)
Glad you enjoyed! You should look up dental filing strips as they are a thin metallic strip perfect for filing points. Also these are pretty efficient and can get nearly 50mpg on flat. 45 is average
I really like your channel so much it bring bring good old memory of mine riding time in the mid of the 70. This bulb matter bring back.mine time. You CBX 1047 bring back those good old day which I own one. Now sure it history for me. I just love you channel very precise you give this old horse a good new life. I still live in the old world 🌎 ha ha.
@@BrickHouseBuilds Not like old bike. New generation bike may be better. But with all those groove electronics riding aids. To me is not too much of a fun at all. I kind of old school old bike you can get it fit. If you are out for a touring. The new one if they don't start cranking the engine you at surrender. You can look at the sky n pray. Old school you still got a chance to get it fit.
@@ansonlow7764 I agree but do like both. The older bikes take more care as they must be treated differently but are very rewarding. New bikes sure are comfy and smooth though!
Thanks for sharing your knowledge really enjoyed video. I read that one of initial checks on machine should include inspection of valves (x8). Would you agree or is it unnecessary?
@@BrickHouseBuilds not each season, every spring after setting in the garage for the winter. Usually the gaskets need replaced and some jets are clogged and other issues. I do love my 70s and 80s Japanese Bikes.
I went ahead and did all the test that you have shown on the video. Which was great by the way. Caps read at 4.8. Primary 4.9 secondary 16.6. I added new plugs as well and new battery. When I tried do the timing test with light it wouldn’t turn on when the marks lined up or at any point when I rotated on either 1-4 or 2-3. Do you think the condenser is bad ? I cleaned off the points. Btw the switch was in the on position. I’m running out of ideas here bc my initial diag was no spark on any cylinder…
You sound like you are working your way through it. Id start checking for voltage where it should be and see if you have excessive drops or no voltage at all
Superb video & timely as I’m looking for a rough 550/4 to do up. Don’t Hondas use metric bolts ? I wince when I see the sloppy fit of your 15/16” spanner /wrench !!
Yes, of course they use metric. That isn't a nut being torqued, tightened, loosened, or put under any load so its perfectly fine to use for demonstration with the points.
Bought a bandit 1200 once that had been sitting for a while..rode it home 20 miles no prob..but next morning had lost 1/4 tank of gas..the carby seals had given in.
@@BrickHouseBuilds yep...and still original 17 years old ..btw.. would love you to get hold of a Yammy FJ ..loved my FJ1200 .. actually one of my best favs was a Suzi GS1100g shafty.. would also love to see you do one or an 850 ... gettin warmer down here now ..out on the gsx1400 for the day this week...90'ish deg ... Got home a sweaty dripping mess..the new weight loss program...stay safe ...👍
@@squiddly-diddly I'll have an FJ1200 at some point im sure. They look amazing and after having an FZ1 and Bandit 1200 they would for sure be my speed for riding
Hi BJ enjoy the vids, bring back memories. I was a child of the 70's and worked on many old bikes. I know this is a year old vid now, but just wanted to say I would not have set the timing the way you did. The back plate was way over to the right as you said and this shows that someone had wrongly set the timing up. What I would have done is set the back plate to the centre of the 3 holes. Then get cylinder 1 to 4 to the firing mark, set up the bulb as you did and then move the back plate for points 1 to 4 only - back (retard) until the light just goes out. Thats 1 to 4 set, then turn engine - 2 to 3 cylinder firing position, and adjust that back plate until the bulb goes out. Both sets are now correct, but check with a strobe light. The bigger back plate should be always in the centre of the three screws, and the two sets of points - back plates - only are moved. Hope this helps.
The plate is slotted to allow rotation.. setting it in the center won't confirm timing as your 1/4 point isn't adjustable like the 2/3 in regards to position on the plate. I set it to when it comes on not when it goes out. My way works perfectly fine but feel free to do how you suggest. This is the method many use
I literally discovered yesterday that my cx500 right cylinder isn't firing. I took the plug cap off, put it back on and that worked for about 5 mins and then not firing again. I'm still really new to bikes and it looks like I'll be investing in a multimeter.
This is great! I'm going to go look at a 72 CB750 later this week. The thing has 20k kilometers (12k miles) on it but probably (almost certainly) rolled the odometer. It only runs when sprayed with Quick start. It's complete, looks repainted, not rough but not mint either. Guy is asking 2800$ CAD (2000$USD) I suspect it's possibly low compression as the carbs were apparently re-done. Any idea what would be a fair negotiating price to offer? (ballpark-ish)
Well it very likely has just 12k miles. People didn't ride as far back then. It's likely that the carbs are just not tuned correctly or cleaned very well. Many people advertise carbs being rebuilt but usually they are poorly done. Unfortunately I do not know the Canadian market. They are cheap here so I would be at 1000 for an offer.
@@BrickHouseBuilds Man, if that mileage was accurate that would be awesome. Thanks for the reply! I wanted to make sure I wasn't going to insult the guy with a low offer. I'll definitely start with a lower offer than I was initially planning. Great channel, brother!!
New subscriber. Just got into 2 wheels last year and although I’m mechanical (basic maintenance and rebuilt and rejetted the carbs on my 03 Magna) I’m not at your level. Very informative. Can’t wait for your next vid on the cbx. Dream bike of mine.
Well congrats on the 2 wheeled machine! I appreciate it and am glad the video is informative. I'm definitely running behind on the CBX updates. I very much want to make progress there too
Outstanding video. I am a new subscriber and I am preparing to restore a Honda cb400F so your tips and techniques are just what I needed. Keep up the great work and thanks for your help! Do you have any videos on how to remove a stuck spark plug out of a barnfind?
Thanks Marcus! CB400f bikes are so cool! Although its not a motorcycle my buddy Nathan recently put up a video on plug removal for an old Model T he has started on. May be worth a watch. th-cam.com/video/Fu--1FEibi0/w-d-xo.html
🦅CB 750 FOUR HONDA A LEGÍTIMA SETE GALO , RONCO INCONFUNDÍVEL, RONCO MAGNÍFICO, UM AMIGO TINHA UMA VERMELHA,E CROMADA COM PNEUS GROSSO, ERA UMA MÁQUINA LINDA , SÓ QUE INFELIZMENTE ELE PASSOU UMA CURVA DIRETO EM ALTA VELOCIDADE E ACABOU LEVANDO A VIDA DELE E DE SEU IRMÃO E A MOTO PARTIU AO MEIO, INFELIZMENTE LEVOU A VIDA DELES🇧🇷✝️🌎
I have been repairing this type of motorcycle for the past 12 years out of my garage. It amazes me that people will drop the bike off dirty to me. Do you think you'll get me to do a better job with an inch of dust on it? I do NOT wash the bike unless it's so bad that I'm worried about stuff falling in the cylinders and even then, I do the minimum necessary. So, if you want your latest barn find to get back on the road, wash the damn thing before you take it to the mechanic.
I'm an old school motorcycle dude started riding in the 70s. As much as I love my new bikes I really dislike and struggle with all the technology crammed up my ass. I don't want traction control, abs, riding modes that each have their own riding modes! Wtf? I just want to ride. I miss my old bikes with carbs and "manual" controls. I love your videos. To see the younger generation embrace the early machines and keep em going, in original condition gives hope for our planet.
Well thank you Stephen! Like you I love vintage machines and the soul they have. I do very much like modern bikes but my passion is in vintage.
I purchased this exact same bike, orange 1972 CB750 K2 brand new in 1972 (just graduated from high school) for $1820 out the door. It was one of the best bikes I’ve ever owned. Open the throttle and it screamed. But just cruise around and it purred. Can’t ever remember having a problem with it. Wonderful bike.
They really are such fantastic bikes. I have a blue 75 I've made a bunch of videos on as my daily rider and it just couldn't make me happier.
I had the exact bike in 72 when I was a junior in high school. No problems whatsoever !
I have my Dad's Gold 71' Honda 750 four I will be trying to get running. came across your videos and I have been glued to them to learn all I can. Thank you! for doing these videos.
@@carlydanyel5813 That will be awesome to make run again!
My 1st bike was a 1976 750. With my father-in-law and his 73 750 and his son on a 500 we took our first cross country from Topeka to Roesburg Oregon. I still see the 1st time seeing the Rockies later Yellowstone then the Pacific. What a great trip for this flatlander and what a great bike!
That would be an amazing memory
Were the contacts arcing?
@@deborahchesser7375 not sure of comment? All three Hondas ran great on the trip there and back.
I just got a 1978 CB 750 and I pick it up today. When I was young, that was the bike I loved.
Well congrats on getting that dream bike!
@@BrickHouseBuilds I just got home with the bike. It needs a windshield! 🤣
These old Hondas are lovely machines, very well presented, keep the content coming!
I appreciate it Jack!
Diagnostic genius. Methodical and knowledgeable will win. Points timing as I practiced a few hundred times.
Thank ya
Beautiful bike. I had the year/color back in the 70’s. Sure miss that one.
I really enjoyed that, it's good to go through the basic stuff in the detail you did. looking forward to the next one.
Glad you liked it and agreed, usually simple stuff but without proper tests you end up throwing parts at the wrong thing
Don't worry; I will stop sending as we know that you are a busy man. I get chatty sometimes. have a good one. Enjoying the show!!
Glad you have enjoyed the videos Alan
i was 17 when that bike came out,i can remember the color being popular,i have never owned or ridden such a big bike,rob
👍
Better bikes than todays complicated machines 👍🏻🏴
In some aspects yes
Very informative, learned a lot! 👍 My first bike was a 74 CB550 super sport, this was like a walk down the memory lane 😊
Happy it had some worthwhile info in it
Do you think a 750 is too heavy for a beginner?
No 750 is a good beginner and intermediate bike I've rode dirt bikes on and off just got my 750 1973 love it learning lots
My first bike was a 78 cb550k, just picked up a 77 cb550f. The exhaust manifolds are a thing of beauty.
I ran a cb400f1 for 18000 miles bought from new in 1976-issues were sticking front disc calliper hinge and water ingress to coils- location was prone to attracting road spray. The calliper hinge was alloy and the pin it pivoted on was steel hence prone to seizing-addressed through stripping and copper grease. Bear in mind it was my daily ride in darkest wettest South Wales. One strange issue as failure of the frame tube due to corrosion at the prop stand bracket. It was followed by a cb550f2. I covered 62000 miles on that orange beauty over 4 years. I fitted electronic ignition and a Peter Furlong full enclosure chain case-ugly but effective in extending the life of oil sintered Izumi chains. A Cibie bright headlight conversion also improved matters. The nylon swing arm bushes were replaced with bronze items. A pig of a job-I think the 400 had grease nipples as does my current ‘03 Thunderbird. I always fancied a Difazio box section swing arm but they were super expensive. Keep an eye on the mudguards. My rears rotted through in no time-that old Welsh weather again. Rear brake cam was also prone to seizing-due again to steel to alloy interface-there’s a felt washer which you should keep oiled to keep the h2o out
I owned one of these bikes - with the four separate exhaust pipes - which makes it a CB750-K2. I bought it in 1976 from a dealer, so first registered in 1973?
We (me + girlfriend) rode it round France - very steady as a Tourer.
I just bought a 1975 CB750 and really appreciate your knowledge being passed on.
Well thank you much! I always try to share everything. Definitely check out my 1975 barn find cb750 revival. I have a ton of videos on it as I brought it back to life and now enjoy it
Nice and informative! I am in the process of convincing my wife we need a CB750. Found one for just over $1000. Your vids got me wanting one!
They are such great bikes. I hope you get it!
I was gonna ask if you use JIS screwdrivers then I saw your note appear, thanks for a nice video!
A must have
Thinking about getting a classic bike from my era growing up & wasn't the best mechanic ( Even with point's electrics) but even I can kind of follow what you're doing. Which is big praise if saw me in a garage ( Fighting with spanners & screwdrivers 😁).
Made me a step closer to buying my dream ( Mid life crisis) bike & won't be so freaked out by D. I. Y mechanics with people like you out there. Takes me back with mates...... " Did ya check the fuel, what sort of spark ya got "
Thanks my friend 👍😁
Thank you much! My goal is to always take the mystery out of doing this stuff and show what it really takes to do it right.
A great demo on what to check & how to do it. No great surprise with the degradation of the plugs leads after almost 50 years. The green fuel was different, lol.
Thank you Martin, I hope it helps some people. The green fuel definitely threw me for a loop!
Nice to see someone having a play with these old girls.
I think you should sweet talk the owner to go for electronic ignition.
I did just that on my Z1s and never looked back.
Keep up the good work.
Thanks Terri, I just hope he is able to put any miles on it this season. He is wise with life experience so throwing that leg over the seat is not as easy as it once was.
@@BrickHouseBuilds Tell me all about it.
I'm in my 60s, but I still love taking 1 of the old girls out.
To watch people's faces, it's like having a model on your arm.
My younger brother sadly passed away in 2006 owned this same color CB 750 He really took extreme good care of it. I miss him a lot.
Im sorry to hear that Kevin
I just love the look of this machine, the right colour and just gorgeous. The model I always wanted but never had the money. Love the look of it. 😎
Its a looker for sure!
I had my carbs sonically cleaned, did a basic balance myself and fitted electronic ignition. Made a heck of a difference. Only bad bit it got rid of the popping in one of the exhausts when throttling off. They never did that back in the day but it was sort of quaint for a 50 year old bike.
They do run sharper for sure! I would miss that popping as well though
It was amazing to see your video on the Honda I was very impressed on your ability to fix those old classic bikes My first bike was a Honda 750 I bought it when I was 15 years old for $800.00 bucks I had the best time of my life on that bike Now I am riding the ZX14 Ninja and the Kawasaki Concourse 1400 abs still love the speed. Your like Picasso only with bike.
Thanks so much!
You may have missed your 2nd calling as a teacher, very informative thank you.
Well thank you! I have always been an "explainer" so this feels natural to me
The CB750 is an Icon because it was so great, but the GS750 soon followed and it was as good and cheaper. I own a GS1000L. I love these bikes.
These have their place in history for sure but yes bikes got even better quickly after
I just picked up one of these a few days ago. Same bike. 500 bucks, barn find. I will restore it completely, down to the frame.
Thats awesome!
@@BrickHouseBuilds Thanks.
Great video and tutorial. I miss my old 83 Night Hawk 750. Looking at getting another. Your videos definitely inspire me.
Thank you!
Hi. Float bowls look they have algae in them. never seen green ones before. Great stuff! Thanks for the upload!
Yeah I really wonder what blend of fuel it had then. Very strange!
Excellent video, especially for those of us still riding carbureted bikes.
Thank you, hopefully they are helpful!
its amazing how much of a headache these bikes must have been for mechanics.... im amazed at all cb videos ive seen someone has always tried to repair different or find some janky repair etc
Yeah I've had to fix many many previous "repairs" that were extremely poorly done
I had this exact year CB750K back in high school in the 1980s. I swapped in a Dyna S ignition in lieu of points and condensers, and accel coils and wires. They had yellow wires with orange boots, therefore, they must be better. Kidding aside, the electronic ignition conversion was the single best improvement, no more pitting points, checking dwell angles, and wondering what the difference between a good and bad condenser is. It also had Weisco 811 pistons, a Kerker 4 into 1, re-jetted the stock carbs (although 29 mm Smoothbores were the goto swap back in the day), Barnett clutch, re-valved damping rods and progressive springs up front, tapered bearings in the front stem, a trimmed front fender. I also ran all the control wires through the inside of a low rise GP handlebar. Had Orient Express perform the machining work for a 5 angle valve job ( or was that 3 angle?). Super reliable and durable. Nice work, thanks for the happy memories.
I'm typically all for upgrading and updating but this wasn't needed here. Just keeping it simple. The bike is local to me so if the owner starts seeing issues this season it can be addressed then
@@BrickHouseBuilds I hear you, it is not your project bike. Do what the customer asks. I would be scuffing the back of those side covers, mixing up some Part A Part B epoxy reinforced with some fiberglass mesh. That will stop those cracks and make it stronger than stock. Ideally you would also do some work on the front face, but that means a respray.
I just finished the 4th rebuild of my 75 Honda CB750F. Got her when I was 17.
Fantastic video BJ! I'm in the process of resurrecting a 1975 CB 125. 2000 original miles so this is great info. Right now no spark so...Thanks again, keep 'em coming.
Glad you found it helpful
great video! might be worth mentioning that all the old Japanese bikes have stripped screws because they are JIS (Japanese industrial standard) which is not the same as American philips screwdrivers. *EDIT. i wrote my comment before you mentioned JIS screwdrivers... :)
I could be a spokesperson for JIS drivers on this channel. I mention them all the time haha
Excuse me while I binge-watch your channel! Love the video-style editing. Simple and fun are good! Works and flows well. Getting nervous sweats because I want to ride my 79' so bad. Getting paint-matched bags back from the painter here soon and a top-end rebuild over the winter! I can finally tune the carbs in because the gaskets are leaking so bad lol.
Thanks Dan! I have a couple hundred videos to keep you busy lol
I've just found this channel and doing exactly the same myself. Guilty pleasure of watching someone else work for a change. I should be in my shop as I have 3 Norton engines and 3 gearboxes requiring my attention 😱😁
@@PurityVendetta I have 2 classic Honda's and 2 custom minibikes that need done as well lol
Ouah! It's already in good shape! One of my favorite bike! I want one like that!
Oh this bike is very solid! I recently had it back in the shop and the new owner has spent hours polishing it up
Excellent diagnosis, great tips too. I had plastic jet in my Yamaha SR 500 single and it vibrated out but never stopped running until it drained the tank of fuel lol. Get shot of them if possible. And yes I did fit the jet in the first place , never again. Cheers Richie.
Yea the plastic jets threw me off for a second! I tightened them less than brass but feel they should stay put
Only a few minutes in and already loving the service work here.
Thanks Dave!
Ur Awesome please keep working on CB750 i got one and im a noob in mechanic and try to keep one alive . ✅✅✅😎
This bike was just two episodes but I have a full CB750 revival playlist that you are bound to love!
Nice work B.J. , Didn't feel like it was running long to me, then again I was looking forward to this one specifically. The paint is awesome!
Yea this one isn't too bad for length but part 2 im struggling to shorten to a reasonable length. We will see lol
Thanks I appreciate you taking the time to run through cleaning and adjusting the points. Really like your channel.
Glad you found it helpful!
Great video! Thorough testing and a laundry list of things to fix. With the mangled timing advance screw I thought you missed an opportunity to talk about JIS, but there it is. And while I understand that this a service to get it running right one of the additional things I'd want to do is to fix those side covers with some plastic welding before they split in two (four?) and disappear.
Thank ya! I'm sure you are watching part two now and in that I address the cracked covers with some epoxy to at least help it last a bit longer. The right side cover was bound to break and fall off.
@@BrickHouseBuilds I didn't see a part 2 - I'll be sure to check it out!
Thanks BJ, the resistance testing is something that will come in handy shortly!
Absolutely. Multimeters are worth their weight in gold IMO
This was great! My 1st bike ever was a 1976 Honda 750 four F model I loved it.
🤘🤘
That was super informative! I just got a 73 and this is so so useful! Thank you!
Glad you found it helpful!
Great video BJ! I've been chasing ignition issues on my frankenstein XS400 for a couple weeks, finally narrowed it down to bad spark plug cables... then watched this video after.
Would have saved a lot of time if I watched this first 😅 Your channel helps keeps my project motivation up! 💪
Well thank you and I'm glad it...could...have helped lol. I've learned all of this stuff by trial and error so I feel ya. I just want to pass on the stuff I learn to the next person.
Those nylon jets were cheaper and touted as nitro safe. Great Channel very enjoyable.
Thanks for the info! They threw me for a loop at first. I appreciate it 🙏
Another great video mate! Enjoying your presentations down here in Australia
Thank you much!
Great video. I am restoring a K1 so this is very helpful
Glad it us helpful Cody!
Beautiful bike! Would love to restore a cb550 one day
Hard to beat a sunburst orange cb750. Cb550s are great
Lembro bem das Hondas com essa tecnologia four. Tive oficina e mexi em algumas mas nunca desmontei o motor, apenas nas Suzuki de motor 2T. Essas eram as motos mais cobiçadas da minha época. Parabéns pelo vídeo.
Thank you much!
70s - 80s golden era of Japanese classic motorcycle bridge building: spoked wheels, straight fit, air vented engine, everything is right!
Agreed
Excellent!! Thanks for doing the diagnostic demo on the timing. Really enjoying your channel.
Thanks Terry!
I owned the CB750 and did all my own maintenance for 30 years. A couple points on points. (1) The points plate wanting to be all the way over to one side is often because the points gap is incorrect or the advance mechanism seized. To make sure, check the points cam and centrifugal advance; disassemble and re-grease. Make sure the felt oiler has oil in it. (2) For static timing, I never used a light bulb. If your work space is quiet, you can hear the tiny "tick" sound when the points open and the ignition on. But it is far better to use a timing light, that way you can check timing at both the idle speed and that the advance works correctly, by revving to 3000RPM.
Thanks for the input Rick. I've worked on and own more than a few 750s among other bikes. The advance was free and spring tension felt good. I did my best to estimate dwell angle but never mentioned it in the video. Felt was good. I've just used the bulb method many times and it works much better for visual demonstration which is important for these videos. Correct on timing light which I have but felt no need to use after setting it as you see. The bike ran like a top so I left it at that.
I was workin on my ignition one day in the driveway and realized I could hear the click. I clicked it a few times and the dang thing started! Thankfully I was in neuitral.
Absolutely love this video, learned a lot from this.
Thanks for sharing this with us.
Glad you found it helpful!
I found this channel yeserday. Really great, exactly what i like. Keep up! Greetings from Sweden!
Well glad you like it! Thanks for watching!
I took your advice and am watching these videos. Im really getting a lot of great advice on what to look for. Quick question I noticed I have oil in one of my reflectors on my forks. I’m figuring it’s a busted seal, but it still has me freaked out a little. Dude are you In Missouri or Vermont? I’m in Oklahoma bro. Anyways you rock!! See ya.
I'm in Missouri. You should be able to inspect the fork for a leak
love the attention to detail, keep up the good work!
Great content for the moto community. Thank you for your service 🫡.
I appreciate that thank you
I have a 1979 cb750 four K and it's locked up tighter than a drum, but was free when I got it. Only thing I've done is rebuild the carbs and try to start it.
Enjoying the video! Wee question - when setting the "fire" timing could you set align the fire mark on the crankcase then rotate the timing board until it lights rather than trial and error it?
Tomato tomaahhto. I simply prefer this method to be as exact as possible. It works well for demonstration. I like to test and retest.
Just got this exact bike yesterday. My seat is locked up (aftermarket lock). Once I get past that I can get going.
Thats unfortunate for sure but at least you can get past it!
What I know from the old masters, when there is a little bit advance on the ignition, the motor pulls nice & hard ! I really enjoyed that channel ! Thank you from EUROPE ! Is a good idea to keep in the pocket strip of sand paper to clean the contact if file missing ! Just fold small half inch strip and put between the contacts and sand a bit .How much fuel "eat" this monster ? :)
Glad you enjoyed! You should look up dental filing strips as they are a thin metallic strip perfect for filing points. Also these are pretty efficient and can get nearly 50mpg on flat. 45 is average
Those grips look like the same ones i had on my push bike as a kid in the 70s :-))
Yeah they were pretty bad lol
I really like your channel so much it bring bring good old memory of mine riding time in the mid of the 70. This bulb matter bring back.mine time. You CBX 1047 bring back those good old day which I own one. Now sure it history for me. I just love you channel very precise you give this old horse a good new life. I still live in the old world 🌎 ha ha.
IM glad you like what im working on Anson! I love these older bikes and making them run as they should really motivates me
@@BrickHouseBuilds Not like old bike. New generation bike may be better. But with all those groove electronics riding aids. To me is not too much of a fun at all. I kind of old school old bike you can get it fit. If you are out for a touring. The new one if they don't start cranking the engine you at surrender. You can look at the sky n pray. Old school you still got a chance to get it fit.
@@ansonlow7764 I agree but do like both. The older bikes take more care as they must be treated differently but are very rewarding. New bikes sure are comfy and smooth though!
Awesome videos, keep the CB750's coming.
Thanks Michael! Hoping to bring my blue 74 in the shop to get running soon
My dad just got a cb500t it's got my wheels turning for sure kinda dig it if I'm being honest
Those are great bikes. One of the best vintage twins I've ridden
Thanks for sharing your knowledge really enjoyed video. I read that one of initial checks on machine should include inspection of valves (x8). Would you agree or is it unnecessary?
Never hurts to check
I have to rebuild my carbs every season, I have considered pulling them and taking them into my house for winter months.
Why do they need a rebuild each season?
@@BrickHouseBuilds not each season, every spring after setting in the garage for the winter. Usually the gaskets need replaced and some jets are clogged and other issues. I do love my 70s and 80s Japanese Bikes.
I learned alot watching this video - thanks for sharing.
Glad it was helpful!
🦅 MÁQUINA COMPLETA, MELHOR RONCO ATÉ HOJE DE UMA 🛵 MOTO , DESIGN E COR SENSACIONAL, CB 750 FOUR HONDA MAGNÍFICA E INESQUECÍVEL 🇧🇷✝️🌎
I went ahead and did all the test that you have shown on the video. Which was great by the way. Caps read at 4.8. Primary 4.9 secondary 16.6. I added new plugs as well and new battery. When I tried do the timing test with light it wouldn’t turn on when the marks lined up or at any point when I rotated on either 1-4 or 2-3. Do you think the condenser is bad ? I cleaned off the points. Btw the switch was in the on position. I’m running out of ideas here bc my initial diag was no spark on any cylinder…
You sound like you are working your way through it. Id start checking for voltage where it should be and see if you have excessive drops or no voltage at all
Great vid, respect from Scotland.
Thank ya sir! Scotland is on the bucket list for visits!
Awesome video. Thanks for this! Love this kind of content
Well I'm glad you liked it Mark! Appreciate you watching
Very educational dude. Thanks. regards from Sydney
Glad you found it so! Thank ya
Superb video & timely as I’m looking for a rough 550/4 to do up.
Don’t Hondas use metric bolts ? I wince when I see the sloppy fit of your 15/16” spanner /wrench !!
Yes, of course they use metric. That isn't a nut being torqued, tightened, loosened, or put under any load so its perfectly fine to use for demonstration with the points.
Can you convert these to a universal electronic ignition?
There are many electronic ignition kits for these bikes. Universal is questionable
Pure motorcycle. I love her as my Kawasaki W800 !
Great video. Really appreciate the step by step.
Glad to hear it Anthony!
Enjoyed the video and RIDE SAFE!
Glad you enjoyed!
love the content makes me wanna find an old bike butt..... love my ZX6R, Z650 RS and ninja 400
All great bikes though!
Bought a bandit 1200 once that had been sitting for a while..rode it home 20 miles no prob..but next morning had lost 1/4 tank of gas..the carby seals had given in.
Bandits do tend to have some issues with the fuel petcock. We're the seals you mention the origns between the carb bodies?
@@BrickHouseBuilds yep...and still original 17 years old ..btw.. would love you to get hold of a Yammy FJ ..loved my FJ1200 .. actually one of my best favs was a Suzi GS1100g shafty.. would also love to see you do one or an 850 ... gettin warmer down here now ..out on the gsx1400 for the day this week...90'ish deg ... Got home a sweaty dripping mess..the new weight loss program...stay safe ...👍
@@squiddly-diddly I'll have an FJ1200 at some point im sure. They look amazing and after having an FZ1 and Bandit 1200 they would for sure be my speed for riding
@@squiddly-diddly Can't say I have any interest in doing a shafty Suzuki though.
Hi BJ enjoy the vids, bring back memories. I was a child of the 70's and worked on many old bikes.
I know this is a year old vid now, but just wanted to say I would not have set the timing the way you did.
The back plate was way over to the right as you said and this shows that someone had wrongly set the timing up. What I would have done is set the back plate to the centre of the 3 holes.
Then get cylinder 1 to 4 to the firing mark, set up the bulb as you did and then move the back plate for points 1 to 4 only - back (retard) until the light just goes out. Thats 1 to 4 set, then turn engine - 2 to 3 cylinder firing position, and adjust that back plate until the bulb goes out. Both sets are now correct, but check with a strobe light. The bigger back plate should be always in the centre of the three screws, and the two sets of points - back plates - only are moved.
Hope this helps.
The plate is slotted to allow rotation.. setting it in the center won't confirm timing as your 1/4 point isn't adjustable like the 2/3 in regards to position on the plate. I set it to when it comes on not when it goes out. My way works perfectly fine but feel free to do how you suggest. This is the method many use
Nice old bike thanks for the info .
🤘🤘
I literally discovered yesterday that my cx500 right cylinder isn't firing. I took the plug cap off, put it back on and that worked for about 5 mins and then not firing again. I'm still really new to bikes and it looks like I'll be investing in a multimeter.
Once you buy a multimeter you will wonder how you got by without one. An EXTREMELY worth while investment.
This should help me a lot I have a cb750 four super sport.
Thank you sir
Glad you found it useful. Even just double checking the basic systems can be a good thing to do
This is great! I'm going to go look at a 72 CB750 later this week. The thing has 20k kilometers (12k miles) on it but probably (almost certainly) rolled the odometer. It only runs when sprayed with Quick start. It's complete, looks repainted, not rough but not mint either. Guy is asking 2800$ CAD (2000$USD) I suspect it's possibly low compression as the carbs were apparently re-done. Any idea what would be a fair negotiating price to offer? (ballpark-ish)
Well it very likely has just 12k miles. People didn't ride as far back then. It's likely that the carbs are just not tuned correctly or cleaned very well. Many people advertise carbs being rebuilt but usually they are poorly done. Unfortunately I do not know the Canadian market. They are cheap here so I would be at 1000 for an offer.
@@BrickHouseBuilds Man, if that mileage was accurate that would be awesome. Thanks for the reply! I wanted to make sure I wasn't going to insult the guy with a low offer. I'll definitely start with a lower offer than I was initially planning. Great channel, brother!!
New subscriber. Just got into 2 wheels last year and although I’m mechanical (basic maintenance and rebuilt and rejetted the carbs on my 03 Magna) I’m not at your level. Very informative. Can’t wait for your next vid on the cbx. Dream bike of mine.
Well congrats on the 2 wheeled machine! I appreciate it and am glad the video is informative. I'm definitely running behind on the CBX updates. I very much want to make progress there too
Excellent work again 🙂
Thanks John!
Outstanding video. I am a new subscriber and I am preparing to restore a Honda cb400F so your tips and techniques are just what I needed. Keep up the great work and thanks for your help! Do you have any videos on how to remove a stuck spark plug out of a barnfind?
Thanks Marcus! CB400f bikes are so cool! Although its not a motorcycle my buddy Nathan recently put up a video on plug removal for an old Model T he has started on. May be worth a watch. th-cam.com/video/Fu--1FEibi0/w-d-xo.html
@@BrickHouseBuilds Thanks for your help!
Nice Video Never Seen Plastic Main Jet On Carb.
Thank ya! I hadn't either but now I know!
Great looking bike the old CB750
That they are! To me one of the best looking factory bikes ever made
@@BrickHouseBuilds And the Z900 .CBX 1000. 3 of the best looking
Someone earlier didn't use JIS screw drivers on the points adjustments? Stripped out the cavity/slots?
Correct
I think the hardest part is getting all four carburators working in harmony.
It can be complicated without a sync tool. Once you have that it is a fairly simple process
This was great, extremely informative!! Great job!
Thanks Mike!
🦅CB 750 FOUR HONDA A LEGÍTIMA SETE GALO , RONCO INCONFUNDÍVEL, RONCO MAGNÍFICO, UM AMIGO TINHA UMA VERMELHA,E CROMADA COM PNEUS GROSSO, ERA UMA MÁQUINA LINDA , SÓ QUE INFELIZMENTE ELE PASSOU UMA CURVA DIRETO EM ALTA VELOCIDADE E ACABOU LEVANDO A VIDA DELE E DE SEU IRMÃO E A MOTO PARTIU AO MEIO, INFELIZMENTE LEVOU A VIDA DELES🇧🇷✝️🌎
I have been repairing this type of motorcycle for the past 12 years out of my garage. It amazes me that people will drop the bike off dirty to me. Do you think you'll get me to do a better job with an inch of dust on it? I do NOT wash the bike unless it's so bad that I'm worried about stuff falling in the cylinders and even then, I do the minimum necessary. So, if you want your latest barn find to get back on the road, wash the damn thing before you take it to the mechanic.
I hear ya and some bikes are pretty nasty but this one didn't bother me. This customer is cool anyway
That bulb you used to test the timing, is that something you can order online? or did you jerry rig that together? Thanks. great video also👍
You could find a test light at an auto parts store or just rig some 12v thing up. Doesn't need to be fancy. Mine was just a spare bulb from a gauge
@@BrickHouseBuildsgreat ill try it! thanks for the reply 🙏
Great content! Keep it coming .
Thanks Adam!