I had a 79 cb750k it’s was great. It’s was about 20 years old. I put it in the shop and they serviced it and adjusted the carbs. Man it ran good. Very fast.
The 750 k was and still is a beautiful bike and even more so than the first cb 750 and what replaced them was not a patch on the 750 k just look at the styling and all that chrome my 79 750 k has the beautiful chrome star wheels and dual front discs brakes Has been off the road a long time but I will be working on it and we will ride again Phil Maguire meath lreland big big fan of the great JIM STIEMAN
Don't be afraid to rev it out. They love the revs. I never minded a drum rear because of the feel in corners, but did a double disk swap up front. 6th gear was lost on the KZ kawasakis as well. Im always ghost shifting into 6th gear. Congratulations on a nice example. I find you get the fun at a lower speed than a on modern bike. 100mph is the hardest I'd push one comfortably.
Right on! The dual discs are a real improvement over stock. All the bikes of this era were geared for 55 mph (in the US). At least on the chain-drive models you can do a front sprocket change to make the gearing taller. Cheers!
Jon. This is an excellent review. You nailed it.......for a "vintage" bike ! And you evoked emotions and nostalgia. Yes, it needed a 6th gear and rear disc. But it handled well with a super smooth engine. The suspension was pretty good too. If I may, please let me add to your input. It was Honda's first foray into the era of DOHC 4-valves-per-cylinder machines, with bikes like the 750K, 750F, 900F, CBX. But a problem that some of these brand new bikes had.....After use and parked for a while, upon starting, some valves remained open and the piston would hit, and bend them. We had the CBX and 750K here, and the Honda salesman and I were very close, so he would tell me about the issue on both machines. Maybe the problem was the valve springs or valve seals....or even the oil used........I don't know ! Too, the carburettors were diaphragmless CV-types, hence the smoothness. Electronic ignition and brush type alternator. First time I saw bikes with throttle return cables. In 1980 just before I got married, I got a crashed one, practically new and got it going in a jiffy. Headlight, front indicators, instrument pod. That's it. I lived 45.2 miles from my job on a bad uphill/downhill road with a million curves and used this bike. Tyres were renewed every 8 weeks. Up to today, although we have the world's biggest lake of asphalt and plenty aggregate, we possibly have the worst roads in the Caribbean ! Cars get damaged all the time, and last year a motorcyclist went into a pothole and lost control. The husband and father did not survive ! In those days people in my country could not afford a bike for recreation. So all bikes were commuter bikes and bikes were run until they could run no more. This was my first 4-stroke bike, first 4-cylinder bike, and first Honda. I came from Yamaha and Suzuki 2-strokes, the biggest being the Suzuki GT550 triple. At the time Kawasaki had a 650-4 and they used to boast in Cycle Guide magazine, "Our 650 can outrun any 750 !" A policeman owner of a Kawa used to taunt me about my "dead bike". One morning on the street of a popular mechanic, I decided to put it to rest. The Kawasaki read my rear number plate until it was unreadable ! The policeman was silenced in front of a small biker crowd ! I could understand why the 750F had that engine. Too, the 900F engine was very similar. Just before I sold it, I installed a pair of Honda's Com-Star wheels, and a Kerker 4-into-1 exhaust. I never owned a 4-cylinder bike after that. Family life could just not support the ownership of expensive motorcycles. After eight-and-a-half years I got close to my job (5 mins) and still live here. Today. I own an Indian made-and-market FZ25 Yamaha, bought last year at the equivalent cost of US$4,400. Good for a 67-year-old in a country with a national speed limit of 100kms/hr. Wish we had roads like you do. Thanks again Jon. Keep them coming. Trinidad & Tobago. West Indies.
Thanks Ramish for sharing the memories, I felt like I was there! I guess all is not paradise in paradise. I have often thought about island life but I count my blessings every time I go riding. PA is a beautiful part of the country!
@@jonsmotorcyclerescueandrev3538 Jon. Right now Itchy Boots is confirming what you say, even though it is in different parts of your country.. And, yes, for motorcycling, nothing can beat the good ole' USA. My country is for visiting only. We have too many challenges to put up with. Take care Jon. Trinidad & Tobago. West Indies.
Are you sure about this "diaphragmless" CV carburetor? The diaphragm is what makes it a CV carb. The purpose of the diaphragm is to modulate the movement of the slide (slow it down) in order to mitigate sudden big changes in fuel/air mixture resulting from sudden throttle movements. In a CV carb, the throttle cable acts on the butterfly, while the diaphragm controls the pace of the slide opening or closing. In a slide throttle carb, the throttle cable acts directly on the slide, requiring an accelerator pump to squirt extra fuel in when there is a sudden opening of the throttle, which would otherwise create an extreme lean condition. That's why when CV carb diaphragms tear, the response to opening the throttle is to bog down. Slower smoother throttle operation is required to make the engine work properly when you have a torn CV diaphragm. It's a dead giveaway.
@@jefftuckercfii Yes. I agree with all you say, regarding the operation of CV carburettors. The CB750K has 4 "diaphragmless" constant velocity carburettors. If you look at this video on servicing a 1981 CB900 carburettors (Which are similar to the CB750K's) you will understand. th-cam.com/video/6sK03SNKAgM/w-d-xo.html The slide/plunger is made with a disc at the top (The piston). The circumference of this piston is grooved and fits closely in the carburettor domed cover, to allow the inlet vacuum to lift it when the butterfly opens. Yes, the piston replaces the diaphragm. Up to a couple years ago I had a Honda CB250 Nighthawk twin cylinder bike with a single diaphragm-type CV carburettor. There was also an accelerator pump on it. In the automotive world of yesteryear, lots of British cars came with Stromberg CV or SU carburettors. The Strombergs had a diaphragm, while the SUs had pistons. Regards. Trinidad & Tobago. West Indies.
I just bought a 1981 750K and LOVE it. Has 35K but was well taken care of. I bought it for $900 from a kid who only had it one summer... Had to replace tweaked out handlebar to stock, and it had the original 4 mufflers intact! AMAZING ! Cleaned carbs and it runs beautifully.
Hi Jon, great review...I live in South Africa and am a Honda fan from way back, starting with a MBX50 in 1984. I also owned a BBX 6-cylinder in the mid '90's before their prices went ballistic. I recentlu bought an '81 CB750K which has the comstar wheels and the dual disks in the front. It is curently undergoing a timing chain change, but otherwise it is completely original and unmolested - I look forward to using it for pleasure rides for many years to come...
Jon, I have a 1980 CB750F. I have worked on and ridden, in recent years, a friend's 1975 CB750F. When I ride his bike it amazes me how his feels really dated whereas my 1980 feels like a far more modern motorcycle. I love that 1980. It is a gem of a motorcycle.
I am a fan of the DOHC CB750, and have a genuine disdain for the SOHC. I'll never keep a SOHC.I turned down free CB750 SOHC's many times. If any more free ones come my way they will be instantly for sale. I've ridden mid-70's SOHC 750's (the worst years) that maybe made 45 RWHP at best. The 79-83 750 can run circles around the SOHC, and is better designed and built There is no comparison for power and the level of engineering competence. Even with 16 valves, I believe the weight and number of parts is similar, but 10 more HP at the crankshaft. Truly a 10 year progressive leap.
I can't believe you have this bike! I had the exact one in the early 80s and I did all of the additions you have. The farings were the same. I had superbikes bars and a 4 into one Mac pipe. Lots of memories!!!! Thanks fo the video. Well done!!
I appreciate the history lessons you provide in your videos. As a soon-to-be new rider, I never paid much attention to motorcycling until recently, and that's going back decades. I have some catching up to do.
Motorcycling is a great hobby because there is so much to learn! Even after all these years (since I was 17), I learn something new every day. Since you are planning to start riding soon, I would highly recommend Motojitsu (TH-cam channel) to learn about riding safely.
@@jonsmotorcyclerescueandrev3538 Thanks, and I've already got a playlist or two from his channel bookmarked. He's a good instructor; it's rare to see someone take the time to draw so much out either on paper or on the ground. My journey starts in 10 days with the MSF Basic Rider weekend; I've passed the written course and have some gear. Afterwards I'll be puttering around my little town on a mint '82 CM200T, a baby brother to the cruiser style you feature. Mine has a small, smoked windscreen and the Hondaline luggage rack. Keeping both for maximum dork effect and so that I can run to the store for a cold 6-pack occasionally.
@@rodolfofigueroa3486 Hi Rodolfo, I get my parts from multiple sources. I use mostly Rick's Electrics parts for electrical, Honda parts, used Ebay parts when necessary, etc.
Hi there! I really enjoyed watching all of your cool videos about restoring your CB750K. I als have a vintage bike 1979 CB750F that I've restored for weekend rides. However, I've been having some trouble with how it runs. When riding at a medium speeds between 4000 and 5000 rpm, the engine has a slight on/off type surge ... the power isn't consistent on steady throttle. Almost like searching where to be...I guess, the best I can explain it. At higher or lower rpms, it's not as noticeable. I'm not a totally mechanically inclined but I do dab here and there on simpler stuff, so I'm willing to give it a shot. So far, I've had a bike shop replaced the carb boots and had the carbs rebuilt by a mechanic. The bike starts and idles much better now, and everything else seems to be working fine. Since our bikes are similar, I was hoping you could give me some or any advice on how help resolve this issue. Thanks!
@Trophy54u The CB750F, like most motorcycles of that era, was jetted lean from the factory. Most likely, your bike isn't getting quite enough fuel at that throttle setting and rpm. I went to a larger size on the pilot jets and mid-range jets on mine. I'm pretty sure I mentioned the exact sizes I used in one of the videos. It made a world of difference, and it's relatively inexpensive. I hope that helps. Cheers!
When I was 18 Years old, I took my RIDING Test on a 77 CB750. Several years later, my wife and I had a 78 CB750, and a 76 CB550. Both of them were rock Solid reliable. I agree, our 550 DID handle MUCH better than the 750. I have never had the chance to ride a 2nd Gen CB750. I would VERY much LIKE to!
I bought one in 2021 and . . YES this does handle very well like it's on rails and my favourite is curves cornering and banking over. I use Metzlers. I had a 1980 750F and it was a very nice bike with gobs of brakes
Excellent enjoyable just finished a rebuild on a 1979 750 k 27 years in a barn 12 months and to many hrs to mention looking forward to spring in Alberta Canada.
I had 3 cb750Fs and a cb900F. I road the wheels off one of the 750s. ( almost literally) The top end will whistle if everything is perfect! A buddy and I was riding on some back roads north of Spokane WA. A bunch of Bikers on Harleys came up behind us in a straight section. We got into the twisty area they fell back then caught up later on more straight roads. We pulled into a gas station both of us expecting a fight. The meanest looking of the bikers walked up to us and said "Yall can ride with us anytime, you guys are good" I was on my CB750f he was on his KZ1000 police bike today I have a 1981 CB750C, a 2004 Shadow 750 Aero and a Yam XT350
I have a cb750k just like that one and I would not a share in a railroad for it mine is the dark burgundy color mine had been sitting for about 25 years so I went through a lot of the same things as you getting it going love your channel thanks and keep the vids coming hey from Kentucky
@@drakeb6168 hey drake if you can get. Get it there only going up in value you can still get parts for it and everywhere I go people will ask me a thousand questions about it good luck and I hope you can get it
I bought mine from my little brother. Stored for 15 years. Took it to Honda dealer, 2000$ later road several hundred miles with my son on his new Harley
I bought a 1980 model with 15,000 miles. It belonged to the pair of husband and wife. It was her bike so it wasn't written as much. Had sitting in the garage about 2 years now and just got to the carburetors. About the same condition as yours and I will probably make the same modifications that you have a little I'll have to see about the writing position with the handlebars. I have two parts bikes that I bought just because they had the spoke wheels which sometimes are needed on old bikes that you pick up. Also picked up a couple of BMWs since then. Located Northeast Missouri
Very cool! The carbs gave me some trouble getting them thoroughly cleaned, but I finally got it running great. I've got family in KC. It's always good to hear from someone else who is rescuing the classics. Cheers!
You mention handling of the 1979 CB750K, but I found my new 1970 CB750 handled very well. The 1979 was OK , but I don't think was better than the 1970. The 1979 also didn't seem as quick and responsive as the 1970, but that was decades ago so it's hard to remember exactly. The 1979 seemed heavier too. It was OK but nothing to compare with modern liter bikes of today. My favorite bike ever wax the 2008 Yamaha FZ1 that I got when I sold the 1979 CB750.
The 1979 CB750K was recognized as the first CB750 to handle well (not just by me). Additionally, it had a DOHC 16-valve motor that put out significantly more hp than the original. I'm not sure why your experience doesn't line up with that. The 2008 FZ1 is a great bike! Cheers!
Yesterday I was watching a video about CB750K and it was a brown color with a silly looking full fairing. At the time I thought to myself that if I bought that bike I would remove the full fairing and paint it in honda late 70s black with a red livery and here today you You Tube suggested this video!
Howdy. I am going to venture that you are wearing a Brooks leather jacket. I had travelled from North Dakota to western New York, the Fingers region, to visit a girl friend, in 1994. She had biking experience and took me to a mall and helped me pick a good leather riding jacket. She suggested I get it a size bigger so I could wear a sweat shirt under it, as you are. Thirty years later, I have traded that man made extra insulation with the natural substance. And the jacket still fits, snuggly. Ha! Anyways, I bought a new Honda CB750F in 1976 from Sioux Cycles, Bismarck, ND while working as a mechanic there after graduating from Scott Community College, Betterdorf, IA (Motorcycle Mechanics Trade Division) that same year. I put on a Vetter fairing, king and queen touring seat, one inch handlebar risers, and a luggage rack-back rest before I took delivery. After enough miles accumalated for a chain replacement, I put a different tooth count counter sprocket on it to match the K model engine rpm to speed ratio. In 1987 I bought a new Kawasaki Councours and made the above mentioned trip to New York. I still have both bikes and have since put the Honda back to its original state. It just turned over 41,000 miles and have never had to service the carbs. I ride it just enough to keep things from getting stale. Jon, you do a really nice job on your informative videos. PA certainly has very nice secondary roads. A side note: I was a long-haul trucker in the 80s ad 90s and unfortunately, I-80 across PA was the worst road in America insofar as pot holes and poor pavement conditionl. And the truck traffic. Ha! Thank you and take care.
Thanks for sharing the memories! It's so cool that you've kept your bikes all these years. 80 was terrible. I made the trip to Ohio many times on 80. I'm glad you enjoy the videos. Cheers!
Lovely review of a lovely bike Jon. Is the fairing a genuine Honda addition, I couldn't really see? Incredible that you rode for 15 minutes without another vehicle in sight, wonderful biking roads in pennsylvania, very picturesque, however I think I would soon lose my licence. Does the double yellow lines mean no overtaking? Greetings from the UK.
Thank you! The fairing is an Emgo unit that I pinstriped to match the bike. PA is a fabulous place to ride. As long as you're not a complete nutter and steer clear of the towns, there's little risk of loosing your license. More risky are the deer, other wildlife, farm equipment, Amish buggies, and idiot drivers. But I do better to stay on the vintage bikes because I'm not well-behaved on the sportbikes.
Does it have the stock exhaust on it? Also, does it still have the original front and rear sprockets as in 15 tooth front and 38 tooth rear? If so, how do you like it? Great video 👍.
John MRR, I'm about to gain custody of a 1981 cb650 inline 4 with only 31K miles on the clock! My friend bought it brand new, yet, hasn't ridden it in the last 20 years. He lives in New Mexico, and, has kept it covered in his garage. I'm 58 years young and, getting my endorsement after a 30 year wait. So, I'm a "NEWB"! I plan to keep it as original as possible. Certain upgrades-like brakes & brake-lines are a must! Once done, I'll text you some photos of the motorbike!🏍️👍. There are certain "nit-wits" who would want to "hot-rod" it out, but, won't put their money where there mouth is, so they get ignored. It RED with LOTS of chrome!😁 along with a sissy bar & bag. I think you'll like it in its entirety as a near fully original bike. Dual carbs, disc/drum set-up.👍😁🏍️ Doug, we gonna have fun on this bike, I'll figure what to name it, when I hear that name spoken.
Hi Jon, Nice review Jon, Im looking at a 750k, its a ways away, have not ridden it yet. Im very tall, also a beginner, have heard that certain 750's good for tall guys. Any thoughts on this ? Thanks very much !
I do get a bit concerned when a new rider looks at a vintage bike. Lots of potential issues there. My CB750K fought me when I was getting it back on the road. You might have safer, less frustrating riding experience on an SV650 or Versys 650. Whichever way you go, I recommend taking an experienced rider along to check the bike out. Good luck in your quest!
@@chrisharper2045 Right on, Chris! I don't want to discourage you. I would like to see you on the right bike for you (whatever that may be). Motorcycles require a higher degree of mechanical involvement than cars to start with and the vintage machines require a higher degree yet. The safety systems (brakes, handling and suspension) are usually better on a newer bike. I think of it like this: would you rather start a new driver in a Carolla or a classic Camaro? Once you are an experienced rider and have the feel for bike maintenance, you may want to go the classic route. I hope this helps! Cheers
@@jonsmotorcyclerescueandrev3538 I hear you there Jon, and I very much appreciate the feedback on larger vintage bikes.. That said..Im not just tall, Im a pretty big guy. I'm 6'8" 270, so on the strong side, cant really do a lot of bikes if Im being honest. Certainly want to do this "the right way", that said I think I'm in a different market than a lot of beginners. Many bikes will be ridiculously small on me I think, if any thoughts there.
@@chrisharper2045 A Versys 650 would be a great starter bike for someone of your stature. It's tall enough and snappy enough to be a great starting place.
@@jonsmotorcyclerescueandrev3538 darn ok np, I have the exact same bike with a 4 into 2 and it runs lean. I changed the 102 jet to 105 and still lean even on idle.
@@BobbyBasketballl Go up on your pilot jets. This will help at idle and below 1/8th throttle where the lean jetting is most noticeable. If that doesn't help, you may have a low speed (idle circuit) passage that is blocked. I had to re-clean my carbs several times. One passage was thoroughly blocked and took quite a bit of work to open up. When finished, it ran beautifully. Good luck!
Hi Jon, I have an 80 CB 750. I love the bike. Wondering if the fairing you have will fit my bike and where did you get the fairing?? Thanks for the review, totally agree with you about the next gen 750, 1980
@@jonsmotorcyclerescueandrev3538 I'm a Brazilian living in Chicago, this bike is like a legend in my home country, I grew up dreaming of having this bike... tks for reading my comment 👊🏽
Hi Karl. This one is the CB750K on the side badges, which is confusing since they had called the previous generation the CB750K as well - even though it wasn't on the badges.
I had a 79 cb750k it’s was great. It’s was about 20 years old. I put it in the shop and they serviced it and adjusted the carbs. Man it ran good. Very fast.
Right on! They are really nice bikes! Cheers
The 750 k was and still is a beautiful bike and even more so than the first cb 750 and what replaced them was not a patch on the 750 k just look at the styling and all that chrome my 79 750 k has the beautiful chrome star wheels and dual front discs brakes Has been off the road a long time but I will be working on it and we will ride again Phil Maguire meath lreland big big fan of the great JIM STIEMAN
@@philmaguire3887 Right on!
Don't be afraid to rev it out. They love the revs. I never minded a drum rear because of the feel in corners, but did a double disk swap up front. 6th gear was lost on the KZ kawasakis as well. Im always ghost shifting into 6th gear. Congratulations on a nice example. I find you get the fun at a lower speed than a on modern bike. 100mph is the hardest I'd push one comfortably.
Right on! The dual discs are a real improvement over stock. All the bikes of this era were geared for 55 mph (in the US). At least on the chain-drive models you can do a front sprocket change to make the gearing taller. Cheers!
Jon.
This is an excellent review. You nailed it.......for a "vintage" bike ! And you evoked emotions and nostalgia.
Yes, it needed a 6th gear and rear disc. But it handled well with a super smooth engine. The suspension was pretty good too.
If I may, please let me add to your input.
It was Honda's first foray into the era of DOHC 4-valves-per-cylinder machines, with bikes like the 750K, 750F, 900F, CBX. But a problem that some of these brand new bikes had.....After use and parked for a while, upon starting, some valves remained open and the piston would hit, and bend them. We had the CBX and 750K here, and the Honda salesman and I were very close, so he would tell me about the issue on both machines. Maybe the problem was the valve springs or valve seals....or even the oil used........I don't know !
Too, the carburettors were diaphragmless CV-types, hence the smoothness. Electronic ignition and brush type alternator. First time I saw bikes with throttle return cables.
In 1980 just before I got married, I got a crashed one, practically new and got it going in a jiffy. Headlight, front indicators, instrument pod. That's it.
I lived 45.2 miles from my job on a bad uphill/downhill road with a million curves and used this bike. Tyres were renewed every 8 weeks. Up to today, although we have the world's biggest lake of asphalt and plenty aggregate, we possibly have the worst roads in the Caribbean ! Cars get damaged all the time, and last year a motorcyclist went into a pothole and lost control. The husband and father did not survive !
In those days people in my country could not afford a bike for recreation. So all bikes were commuter bikes and bikes were run until they could run no more.
This was my first 4-stroke bike, first 4-cylinder bike, and first Honda. I came from Yamaha and Suzuki 2-strokes, the biggest being the Suzuki GT550 triple.
At the time Kawasaki had a 650-4 and they used to boast in Cycle Guide magazine, "Our 650 can outrun any 750 !" A policeman owner of a Kawa used to taunt me about my "dead bike". One morning on the street of a popular mechanic, I decided to put it to rest. The Kawasaki read my rear number plate until it was unreadable ! The policeman was silenced in front of a small biker crowd ! I could understand why the 750F had that engine. Too, the 900F engine was very similar.
Just before I sold it, I installed a pair of Honda's Com-Star wheels, and a Kerker 4-into-1 exhaust. I never owned a 4-cylinder bike after that. Family life could just not support the ownership of expensive motorcycles. After eight-and-a-half years I got close to my job (5 mins) and still live here.
Today. I own an Indian made-and-market FZ25 Yamaha, bought last year at the equivalent cost of US$4,400. Good for a 67-year-old in a country with a national speed limit of 100kms/hr.
Wish we had roads like you do.
Thanks again Jon.
Keep them coming.
Trinidad & Tobago.
West Indies.
Thanks Ramish for sharing the memories, I felt like I was there! I guess all is not paradise in paradise. I have often thought about island life but I count my blessings every time I go riding. PA is a beautiful part of the country!
@@jonsmotorcyclerescueandrev3538 Jon. Right now Itchy Boots is confirming what you say, even though it is in different parts of your country..
And, yes, for motorcycling, nothing can beat the good ole' USA.
My country is for visiting only. We have too many challenges to put up with.
Take care Jon.
Trinidad & Tobago.
West Indies.
@@ramishrambarran3998 Thanks Ramish!
Are you sure about this "diaphragmless" CV carburetor? The diaphragm is what makes it a CV carb. The purpose of the diaphragm is to modulate the movement of the slide (slow it down) in order to mitigate sudden big changes in fuel/air mixture resulting from sudden throttle movements. In a CV carb, the throttle cable acts on the butterfly, while the diaphragm controls the pace of the slide opening or closing. In a slide throttle carb, the throttle cable acts directly on the slide, requiring an accelerator pump to squirt extra fuel in when there is a sudden opening of the throttle, which would otherwise create an extreme lean condition. That's why when CV carb diaphragms tear, the response to opening the throttle is to bog down. Slower smoother throttle operation is required to make the engine work properly when you have a torn CV diaphragm. It's a dead giveaway.
@@jefftuckercfii Yes. I agree with all you say, regarding the operation of CV carburettors.
The CB750K has 4 "diaphragmless" constant velocity carburettors. If you look at this video on servicing a 1981 CB900 carburettors (Which are similar to the CB750K's) you will understand.
th-cam.com/video/6sK03SNKAgM/w-d-xo.html
The slide/plunger is made with a disc at the top (The piston). The circumference of this piston is grooved and fits closely in the carburettor domed cover, to allow the inlet vacuum to lift it when the butterfly opens. Yes, the piston replaces the diaphragm.
Up to a couple years ago I had a Honda CB250 Nighthawk twin cylinder bike with a single diaphragm-type CV carburettor. There was also an accelerator pump on it.
In the automotive world of yesteryear, lots of British cars came with Stromberg CV or SU carburettors. The Strombergs had a diaphragm, while the SUs had pistons.
Regards.
Trinidad & Tobago.
West Indies.
I just bought a 1981 750K and LOVE it. Has 35K but was well taken care of. I bought it for $900 from a kid who only had it one summer... Had to replace tweaked out handlebar to stock, and it had the original 4 mufflers intact! AMAZING ! Cleaned carbs and it runs beautifully.
Awesome! It sounds like you got a good one. Cheers!
Still need armature replaced.no Honda parts to be found😢
@@thomastevelde8547 I feel your pain. I had to really search (and pay) for the ones on this bike. Maybe try www.4into1.com
Hi Jon, great review...I live in South Africa and am a Honda fan from way back, starting with a MBX50 in 1984. I also owned a BBX 6-cylinder in the mid '90's before their prices went ballistic. I recentlu bought an '81 CB750K which has the comstar wheels and the dual disks in the front. It is curently undergoing a timing chain change, but otherwise it is completely original and unmolested - I look forward to using it for pleasure rides for many years to come...
Thanks Eric! I bet you wish you still had the CBX with the current values. Congratulations on the CB750K. They are nice bikes!
Jon, I have a 1980 CB750F. I have worked on and ridden, in recent years, a friend's 1975 CB750F. When I ride his bike it amazes me how his feels really dated whereas my 1980 feels like a far more modern motorcycle. I love that 1980. It is a gem of a motorcycle.
Right on!
I am a fan of the DOHC CB750, and have a genuine disdain for the SOHC. I'll never keep a SOHC.I turned down free CB750 SOHC's many times. If any more free ones come my way they will be instantly for sale. I've ridden mid-70's SOHC 750's (the worst years) that maybe made 45 RWHP at best. The 79-83 750 can run circles around the SOHC, and is better designed and built There is no comparison for power and the level of engineering competence. Even with 16 valves, I believe the weight and number of parts is similar, but 10 more HP at the crankshaft. Truly a 10 year progressive leap.
@@scottb8175 Right on!
I can't believe you have this bike! I had the exact one in the early 80s and I did all of the additions you have. The farings were the same. I had superbikes bars and a 4 into one Mac pipe. Lots of memories!!!! Thanks fo the video. Well done!!
Thanks Gordon, I'm glad you enjoyed it!
I appreciate the history lessons you provide in your videos. As a soon-to-be new rider, I never paid much attention to motorcycling until recently, and that's going back decades. I have some catching up to do.
Motorcycling is a great hobby because there is so much to learn! Even after all these years (since I was 17), I learn something new every day. Since you are planning to start riding soon, I would highly recommend Motojitsu (TH-cam channel) to learn about riding safely.
@@jonsmotorcyclerescueandrev3538 Thanks, and I've already got a playlist or two from his channel bookmarked. He's a good instructor; it's rare to see someone take the time to draw so much out either on paper or on the ground.
My journey starts in 10 days with the MSF Basic Rider weekend; I've passed the written course and have some gear. Afterwards I'll be puttering around my little town on a mint '82 CM200T, a baby brother to the cruiser style you feature. Mine has a small, smoked windscreen and the Hondaline luggage rack. Keeping both for maximum dork effect and so that I can run to the store for a cold 6-pack occasionally.
@@thenexthobby Awesome! Sounds like you're doing it right!
Where did you buy your parts from?
@@rodolfofigueroa3486 Hi Rodolfo, I get my parts from multiple sources. I use mostly Rick's Electrics parts for electrical, Honda parts, used Ebay parts when necessary, etc.
Hi there! I really enjoyed watching all of your cool videos about restoring your CB750K. I als have a vintage bike 1979 CB750F that I've restored for weekend rides. However, I've been having some trouble with how it runs. When riding at a medium speeds between 4000 and 5000 rpm, the engine has a slight on/off type surge ... the power isn't consistent on steady throttle. Almost like searching where to be...I guess, the best I can explain it. At higher or lower rpms, it's not as noticeable. I'm not a totally mechanically inclined but I do dab here and there on simpler stuff, so I'm willing to give it a shot. So far, I've had a bike shop replaced the carb boots and had the carbs rebuilt by a mechanic. The bike starts and idles much better now, and everything else seems to be working fine. Since our bikes are similar, I was hoping you could give me some or any advice on how help resolve this issue. Thanks!
@Trophy54u The CB750F, like most motorcycles of that era, was jetted lean from the factory. Most likely, your bike isn't getting quite enough fuel at that throttle setting and rpm. I went to a larger size on the pilot jets and mid-range jets on mine. I'm pretty sure I mentioned the exact sizes I used in one of the videos. It made a world of difference, and it's relatively inexpensive. I hope that helps. Cheers!
It's Very nice to see how much lean to the bars you have..
Gr8 info
Awesome Vid👍
Thank you!
When I was 18 Years old, I took my RIDING Test on a 77 CB750. Several years later, my wife and I had a 78 CB750, and a 76 CB550. Both of them were rock Solid reliable. I agree, our 550 DID handle MUCH better than the 750. I have never had the chance to ride a 2nd Gen CB750. I would VERY much LIKE to!
Very cool Bruce. The handling is where I noticed the biggest difference between first and second gen CB750s.
I bought one in 2021 and . . YES this does handle very well like it's on rails and my favourite is curves cornering and banking over. I use Metzlers. I had a 1980 750F and it was a very nice bike with gobs of brakes
Right on Stan! The gen 2 CB750 was a nice handling bike. Cheers!
Excellent enjoyable just finished a rebuild on a 1979 750 k 27 years in a barn 12 months and to many hrs to mention looking forward to spring in Alberta Canada.
Very cool 😎!
I had 3 cb750Fs and a cb900F.
I road the wheels off one of the 750s. ( almost literally)
The top end will whistle if everything is perfect!
A buddy and I was riding on some back roads north of Spokane WA.
A bunch of Bikers on Harleys came up behind us in a straight section.
We got into the twisty area they fell back then caught up later on more straight roads.
We pulled into a gas station both of us expecting a fight.
The meanest looking of the bikers walked up to us and said "Yall can ride with us anytime, you guys are good"
I was on my CB750f he was on his KZ1000 police bike
today I have a 1981 CB750C, a 2004 Shadow 750 Aero and a Yam XT350
Very cool 😎, Kenneth! Thanks for sharing the memories. Cheers!
I have a cb750k just like that one and I would not a share in a railroad for it mine is the dark burgundy color mine had been sitting for about 25 years so I went through a lot of the same things as you getting it going love your channel thanks and keep the vids coming hey from Kentucky
Thanks Steve!
How has your bike been coming along? I may be picking an 81 up here pretty soon.
@@drakeb6168 hey drake if you can get. Get it there only going up in value you can still get parts for it and everywhere I go people will ask me a thousand questions about it good luck and I hope you can get it
I bought mine from my little brother. Stored for 15 years. Took it to Honda dealer, 2000$ later road several hundred miles with my son on his new Harley
So cool 😎, Thomas!
I bought a 1980 model with 15,000 miles. It belonged to the pair of husband and wife. It was her bike so it wasn't written as much. Had sitting in the garage about 2 years now and just got to the carburetors. About the same condition as yours and I will probably make the same modifications that you have a little I'll have to see about the writing position with the handlebars. I have two parts bikes that I bought just because they had the spoke wheels which sometimes are needed on old bikes that you pick up. Also picked up a couple of BMWs since then. Located Northeast Missouri
Very cool! The carbs gave me some trouble getting them thoroughly cleaned, but I finally got it running great. I've got family in KC. It's always good to hear from someone else who is rescuing the classics. Cheers!
You mention handling of the 1979 CB750K, but I found my new 1970 CB750 handled very well. The 1979 was OK , but I don't think was better than the 1970. The 1979 also didn't seem as quick and responsive as the 1970, but that was decades ago so it's hard to remember exactly. The 1979 seemed heavier too. It was OK but nothing to compare with modern liter bikes of today. My favorite bike ever wax the 2008 Yamaha FZ1 that I got when I sold the 1979 CB750.
The 1979 CB750K was recognized as the first CB750 to handle well (not just by me). Additionally, it had a DOHC 16-valve motor that put out significantly more hp than the original. I'm not sure why your experience doesn't line up with that. The 2008 FZ1 is a great bike! Cheers!
Yesterday I was watching a video about CB750K and it was a brown color with a silly looking full fairing. At the time I thought to myself that if I bought that bike I would remove the full fairing and paint it in honda late 70s black with a red livery and here today you You Tube suggested this video!
Right on! The paint on the bike is stock. I pinstriped the fairing to match the rest of the bike.
Howdy. I am going to venture that you are wearing a Brooks leather jacket. I had travelled from North Dakota to western New York, the Fingers region, to visit a girl friend, in 1994. She had biking experience and took me to a mall and helped me pick a good leather riding jacket. She suggested I get it a size bigger so I could wear a sweat shirt under it, as you are. Thirty years later, I have traded that man made extra insulation with the natural substance. And the jacket still fits, snuggly. Ha! Anyways, I bought a new Honda CB750F in 1976 from Sioux Cycles, Bismarck, ND while working as a mechanic there after graduating from Scott Community College, Betterdorf, IA (Motorcycle Mechanics Trade Division) that same year. I put on a Vetter fairing, king and queen touring seat, one inch handlebar risers, and a luggage rack-back rest before I took delivery. After enough miles accumalated for a chain replacement, I put a different tooth count counter sprocket on it to match the K model engine rpm to speed ratio. In 1987 I bought a new Kawasaki Councours and made the above mentioned trip to New York. I still have both bikes and have since put the Honda back to its original state. It just turned over 41,000 miles and have never had to service the carbs. I ride it just enough to keep things from getting stale. Jon, you do a really nice job on your informative videos. PA certainly has very nice secondary roads. A side note: I was a long-haul trucker in the 80s ad 90s and unfortunately, I-80 across PA was the worst road in America insofar as pot holes and poor pavement conditionl. And the truck traffic. Ha! Thank you and take care.
Thanks for sharing the memories! It's so cool that you've kept your bikes all these years. 80 was terrible. I made the trip to Ohio many times on 80. I'm glad you enjoy the videos. Cheers!
It was known as the 'KZ', at least in Europe, and had a 4 into 4 exhaust system. Beautiful looking bike.
Right on! It had the 4-into-4 here, too. This one has aftermarket 4-into-2 exhaust. Cheers!
Lovely review of a lovely bike Jon. Is the fairing a genuine Honda addition, I couldn't really see? Incredible that you rode for 15 minutes without another vehicle in sight, wonderful biking roads in pennsylvania, very picturesque, however I think I would soon lose my licence. Does the double yellow lines mean no overtaking? Greetings from the UK.
Thank you! The fairing is an Emgo unit that I pinstriped to match the bike. PA is a fabulous place to ride. As long as you're not a complete nutter and steer clear of the towns, there's little risk of loosing your license. More risky are the deer, other wildlife, farm equipment, Amish buggies, and idiot drivers. But I do better to stay on the vintage bikes because I'm not well-behaved on the sportbikes.
Does it have the stock exhaust on it? Also, does it still have the original front and rear sprockets as in 15 tooth front and 38 tooth rear? If so, how do you like it? Great video 👍.
It doesn't have the stock exhaust. I think the gearing is stock. I didn't mind the gearing, but I never rode it on the highway.
John MRR, I'm about to gain custody of a 1981 cb650 inline 4 with only 31K miles on the clock! My friend bought it brand new, yet, hasn't ridden it in the last 20 years. He lives in New Mexico, and, has kept it covered in his garage. I'm 58 years young and, getting my endorsement after a 30 year wait. So, I'm a "NEWB"! I plan to keep it as original as possible. Certain upgrades-like brakes & brake-lines are a must! Once done, I'll text you some photos of the motorbike!🏍️👍. There are certain "nit-wits" who would want to "hot-rod" it out, but, won't put their money where there mouth is, so they get ignored. It RED with LOTS of chrome!😁 along with a sissy bar & bag. I think you'll like it in its entirety as a near fully original bike. Dual carbs, disc/drum set-up.👍😁🏍️ Doug, we gonna have fun on this bike, I'll figure what to name it, when I hear that name spoken.
Very cool, Douglas 😎! I'm happy to hear you're putting a classic back on the road. I would love to see the pics when you're done! Cheers!
Very smooth bike. A mate bought a new one in 1980. The classic UJM...$AU 3,200 new.
Very cool, Craig.
Hi Jon,
Nice review Jon,
Im looking at a 750k, its a ways away, have not ridden it yet. Im very tall, also a beginner, have heard that certain 750's good for tall guys. Any thoughts on this ? Thanks very much !
I do get a bit concerned when a new rider looks at a vintage bike. Lots of potential issues there. My CB750K fought me when I was getting it back on the road. You might have safer, less frustrating riding experience on an SV650 or Versys 650. Whichever way you go, I recommend taking an experienced rider along to check the bike out. Good luck in your quest!
I appreciate your candor . I will do more research.
@@chrisharper2045 Right on, Chris! I don't want to discourage you. I would like to see you on the right bike for you (whatever that may be). Motorcycles require a higher degree of mechanical involvement than cars to start with and the vintage machines require a higher degree yet. The safety systems (brakes, handling and suspension) are usually better on a newer bike. I think of it like this: would you rather start a new driver in a Carolla or a classic Camaro? Once you are an experienced rider and have the feel for bike maintenance, you may want to go the classic route. I hope this helps! Cheers
@@jonsmotorcyclerescueandrev3538
I hear you there Jon, and I very much appreciate the feedback on larger vintage bikes.. That said..Im not just tall, Im a pretty big guy. I'm 6'8" 270, so on the strong side, cant really do a lot of bikes if Im being honest. Certainly want to do this "the right way", that said I think I'm in a different market than a lot of beginners. Many bikes will be ridiculously small on me I think, if any thoughts there.
@@chrisharper2045 A Versys 650 would be a great starter bike for someone of your stature. It's tall enough and snappy enough to be a great starting place.
Good video Jon one thing I never understood is if the technology is there why they continue using drums instead of disc.
Thanks Salvador, I don't understand why either.
Can you share what jets you set it to?
Great question, Bobby! With all the projects I work on, I don't remember off the top of my head. Sorry about that! Cheers
@@jonsmotorcyclerescueandrev3538 darn ok np, I have the exact same bike with a 4 into 2 and it runs lean. I changed the 102 jet to 105 and still lean even on idle.
@@BobbyBasketballl Go up on your pilot jets. This will help at idle and below 1/8th throttle where the lean jetting is most noticeable. If that doesn't help, you may have a low speed (idle circuit) passage that is blocked. I had to re-clean my carbs several times. One passage was thoroughly blocked and took quite a bit of work to open up. When finished, it ran beautifully. Good luck!
@@jonsmotorcyclerescueandrev3538 awesome advice, I haven't thought of that thank you!
@@BobbyBasketballl You're welcome!
I know you said it in a previous video but what bars did you put on that bike?
Emgo "Magna Wide"
Thanks, wanted to try them on cb900c and my son wanted to see if he likes them for his 77 cb750.
@@grize9999 Nice! Let me know how you like them on the CB900C. I was thinking about putting them on a CB900C myself. 🙂
Friend.had.cb750 honda 79 and I had yamaha 750 79 model how do they compare
I haven't ridden the XS750 triple, but I will if I get the chance. Cheers!
Hi Jon, I have an 80 CB 750. I love the bike. Wondering if the fairing you have will fit my bike and where did you get the fairing?? Thanks for the review, totally agree with you about the next gen 750, 1980
Hi Greg, the fairing is an Emgo Viper fairing. As long as your 750 has the 7" headlight, it will fit. Cheers!
Thanks for your reply
Seen in the first Terminator movie back in 1984
@@johnfeliciano585 Right on!
Beautiful bike… I’m looking for get a similar bike, your video help me … tks
Thanks Rinaldo!
@@jonsmotorcyclerescueandrev3538 I'm a Brazilian living in Chicago, this bike is like a legend in my home country, I grew up dreaming of having this bike... tks for reading my comment 👊🏽
@Rinaldo Chicago Very cool Rinaldo! 👍
Honda prob got hold of a gs750 and examined it to improve the new CB did they give the new cb750 a no. Prefix
Hi Karl. This one is the CB750K on the side badges, which is confusing since they had called the previous generation the CB750K as well - even though it wasn't on the badges.
44年前のオートバイとは思えない美しさですね。
ありがとう！
Hi. Are you selling it?
I might consider selling if the price is right. 🙂 If you're a serious buyer, feel free to contact me at jonsmotorcycle@hotmail.com
@@jonsmotorcyclerescueandrev3538 can you share the price here
@@BK1-WOLF I sold the CB750 several months ago.
@@jonsmotorcyclerescueandrev3538 how much was bro 🌹
@@BK1-WOLF $4000
Do you know what the K means ?
No. And it's confusing because the earlier gen bikes were also called CB750K. It applies to the standard style bikes (not the super-sport models).
16 valves! Yikes!
@@mikejones-qk2ou Yep.
Danke schön!