FIRST START Attempt in Almost 20 YEARS On the NasKart’s New ENGINE!
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- Hey Guys, Migs Here! In today’s video, I am attempting to start the motorcycle, a 1980 Honda CB750c, for the first time in almost 20 years! This engine is going to be put onto the Half Scale NASCAR once it’s ready! Before we tried this, I reassembled the carburetors, installed them, and then tested for spark, installed a new battery, spark plugs and many others. Thanks for Watching! Please Subscribe, Like, Comment and Tell Your Friends About the Channel!
I would tro some starting fluid/gas in to de cylinders to get it running then it might be easier to narrow down the problem, keep it up
Edit: Thanks for all the likes and thanks for the heart Migs
Get some starting fluid and spray the backs of the carburetor where the air breathers should be and it should start right up
Wyatt 048 people are stupid if they use starter fluid
Wyatt 048 I'm pretty sure he knows that
Sams Restos’ why is that?
How is it stupid? They make it for a reason and how would it lock up your engine
@@moshiba3210 its only harmful for two stroke motors. And the reason it is harmful for two strokes is because two stroke engines get cyclinder lubrication from the premixed gas. And MOST. Starting fluids do not have oil like properties. HOWEVER starting fluids with Upper cylinder lubrication are safe for twostrokes if you only plan on using it to get her fired up.
Check the exhaust is clear, if it's been sitting that long there will be all sorts of stuff in them from mice to what not
Smoke is coming out so probably not
@@chickensfloat7427 I had a wasp nest in a bike of mine, smoke still came out.
if the carb isn't moving freely that's a problem.
Ya dont say😂
Is it?😅
TREE HUGGAH no way
TREE HUGGAH it’s a car style carb. I’m pretty sure they run off of vaccum
No shit sherlock homes
Open the chock and just spray fuel inside. Check the compression as well
Put som little gas into the cylinders
Most people here are suggesting you to drip some gasoline inside the cylinders and spray some starter fluid in the carb intakes before you start the engine. Give it a try.... Its a simple step.
Neil Roy don’t use starter fluid
@@Sam-m04 any of the fluids can be used.... Starter fluid is more refined and filtered.
Homie, you're working on a motorcycle, don't shop at an auto parts store!
That engine is good for 1 thing: A boat anchor. I dont think you chould have found a heavier engine if you tried. IF- and that is a BIG if, That engine ever runs you need to re-do the whole back frame of the gokart. You are changing a 20 pound engine for a 200 pound engine and that go kart is NOT buildt to have a heavy engine like that. And maybe it is time to get a Battery booster/jumper pack?? It feels like every other video i watch you buying a new battery.... And next time start the build with a compession tester. Some of the valves may be stuck open or dont close completely. Do your self a big favor and throw out that engine(bike) And get a singel cylinder engine. Go and watch Grind hard plumbing`s videos. They have done Amazing things with a xr 250 and a crf 450 engine. And while you are searching YT, Go watch Mustie1 videos. And see how easy it is to try starting an engine, and how hard you are doing it. you dont need carbrators to start up a engine. just squirt some fuel in to the engine and see if it fires. Good luck with that thing. Cheers
He’s fully right couldn’t have said this any better myself.
Thanks for the info man! I’ll definitely take into consideration everything you said 👍🏻
The honda cb750 is the greatest, simplest motor they made in that size range. He needs to slow the fuck down and STOP GRINDING/DRILLING ON CARBS!!!!! most of these bikes can be completely rebuilt with a handful of tools and a can of PB. I would have had this bike running the second night.
STARTING FLUID!!!!!
Hey there, ive got a possible answer for you. The plug wires on that bike have resisters built into them. The spark plugs you just bought also have resisters in them, thats what the R stands for. If you double up on resisters it will result in a weak spark. My BMW is the same. Get the right plugs... Good luck sir, i enjoy your content.
The spark isn’t the greatest so that could be an issue, thanks!
70000 subscribers and still doesn't know a thing about a motorcycle!
Starting fluid
Came as soon as i got the notification
Spray some go go juice into the carbs!! Then try an start it. Ya goof!!
Do you have lip stick on 😆
Ikr😂
@@carguy2186 😆😂😂😂😂
The engine is Getting fuel but the exhaust is problably clogged and that will make it fire but not run. Its prob a mouse nest. You can tell by the way it smoked that it wasnt Getting enough air flow
Såååjaaaaaa
1) engine doesn't need throttle when choke is on to start, 2) clarify the fuel bowls are filling up and the float valve isn't getting stuck (tap bowls with something)
Pour fuel down the spark plug hole. It will start 100%
Try starting fluid instead of killing the battery. If it doesn't start check your compression and spark.
Add some starting fluid
Johnny R dirt bike squirt some juice and them carburetors I've been doing this for 40 years it will start
Here before quality was passed 360p lmaooo
Try dripping fuel/gass down the spark plug hole not a lot just a little bit then try to start it and if you get nothing I would pull the head and pistons and look at them make sure it's super scored inside and like you said get a compression tester if the compression is just a little bit low you can try to hone out the cylinders or run 2 stroke oil in the gas
Stick a torch down all the cylinders to burn out any of the oil or gas that could be in there and it will also warm the engine up a little bit
Random person who scrolling through the comments have a nice day😁
You too😂
😂😂
I happen to be scrolling by, hope you have a good day too!
*First*
First
Migs what happened to the Honda super mangna????
Nice video but lay off the lip gloss lmao
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Just my suggestion but you should get a battery charger with car starter. Save your batteries and charge them as well. Also, NGK are great for rice burners I was just typing when you showed NGK plugs, some even don't require gap. I rebuilt a 1974 Honda XR75 that was trashed in a wooded area here in Texas, I traded it for a 1974 Honda Elsinore 250 Enduro that also needed a lot of work but that bike was a treasure😍 had tank with oil that mixed in with gas as you throttle it, some lowlifes stole it, from truck bed, chained cut, was eating breakfast at a Denny's on the way to Floresville. Anywho, good work and good luck on this Honda😎
360p club
It's a carb issue...spray some starter fluid in the carbs and it will start right up
🇫🇮
20:06 - when you left you gas off trying to start it, brought back a lot from when I was younger and worked on four wheelers 😂. Just gave me a kick. Love your videos men. Keep up the good work.
Thanks for the support! I appreciate it!!
Take the carburetors off and spray starting fluid in the intake and that should start right up a little bit and let you know if the carburetors are bad
STARTING FLUID!!!! Or dribble some gas down the spark plug holes. You literally don't even need the carbs on to try it. If it fires you know you still have work to do on the carbs. If it doesn't then you know it's either low compression ( which I highly doubt ), spark or timing. If it was a 2 stroke or for the people worried about washing the oil off the cylinder walls there is starting fluid with upper cylinder lubrication you can use.
Migs** not mix
Build** not buid
Wiggle** not wiggo
check the compression n just buy a new carb set it should fire up
I was noticing that it’s just needing more air the choke is to much for it so when you took out the spark plug it allowed air into the cylinder which was allowing it to get the right fuel to air ratio try having the choke about half and that should do it
Get the new carbs it will make it easier for u and when the mini car is running I will make your money back
Try starting fluid before spending money on carbs. Plus the carbs can probably still be saved if that's actually the problem.
there may be problems with the exhaust system. maybe clogged
well since it came a bit of smoke from the exhaust that does not seem likely
Maybe it's not fully clogged but enough to don't make the engine start. I think that since there is a big problem with mouse. There maybe is a mouse nest in the exhaust.
At first I hated on this channel now I enjoy the videos!!!
Squirt some gas or starting fluid down the carbs where the chokes are when there fully open. It will 100% fire up
Or dip the spark plugs in petrol and reinstall them
those are resistor spark plugs in which the bike was not designed for. Use the old plugs or use the right new ones
no u it doesn’t matter if they are resistor plugs
@@jeeg7204 pretty sure that bike has resistors already, so having resistors in the plugs would weaken spark
no u maybe but it won’t keep it from running unless the stator or cdi is going bad producing a weaker spark already. This kid is just a dumbass
Ayyy
Pour some gas in cylinders, if no fire test compression
Hi my favorite youtuber
Try to start it with the crankshaft
If i were you i would try some starting fliud and also check if there is mouse nest in the exhaust because that could be preventing it from starting
Just keep the bicycle
You need to fire something though the carbs for it to start with. Also trying an external fuel tank isnt a bad idea
Again nice wideo as always
Those batteries suck
You mean to tell me I watched a 24 minute video to not see it run 🤦🏻♂️
Thank you for saving me 10 minutes
You could of went to a Honda dealer for for spark plugs. Or went on the internet for antique motorcycles for parts. (Ebay/Amazon/Vintage Japan motorcycle parts)
Rip starter
Hi
The one time you don’t use starter fluid lol!!
Put some gas in the cylinders if it starts you know its the carbs
Buy a new carb
First
Get a carb
You are using only 1 cable for the throttle so only 2 cylinders are getting fuel and use your TRUCK S BATTERY so it does gives enougth amps i used a truck battery for a 110 quad it did no damage it didnt run for 9 years an it took me like 2h of cranking go make it run an the battery was even still able to start my truck
First and love the vids bud love from canada
Thanks!
First
Hey Migs, if i may give some advice, first off all, you'v got the wrong spark plugs, the R stands for a resistor, specially made for cars, to have no interference with the radio..the spark u have now is wayyy to weak.... just go to some bike store, they know and have what you need for sure, after that i would clean out the exhausts, or just remove those, you noticed some mouse nests? what better place for a mouse to build a nest then a dark exhaust...pooring some gas directly into the cilinders is Always a good idea, after having ATF oil in the cilinders, cleans it out really well, oil also takes down the combustion a LOTT....at last, the pistons in the carburator have to move really smooth, as you know they have the gasneedles attached, if the dont move, or move smoothly all 4 at the same time, the engine will never run smoothly...loots off smooths :D...anyway, polish m out, wetsanding with 600grid works great, for starting, the easiest way is Always using starterfluid, or simply breakcleaner, and don't close the choke all the way, it does need a little air.... i'v done things like this for like 30 years...see some really funny mistakes, but absolutely have respect for your effortt, best advice from a biker….keep the shiny side up :D
First
First
Also get d jumper pack to save ur battery
Ok........get a compression tester, a Morgan carbtune pro 4, a gunson colortune, some feeler gauges, and a dmm. Without these tools, you may be able to get it running, but you wont get it running at %100. Also, go on Ebay and find a used set of carbs, you butchered those slides the second you grabbed them with pliers and hammered on them.
Nightmare!!!! could already have a 600r in there running, those carbs are junk now you took the bench grinder to them, they are machined specificaly for fuel/air you just changed them even if its a 1mm
That breeze isnt running right at all.. What do you mean its good to go?
Fuel air compression and spark. Good spark. Maybe too much air rushing it without the air filters on. And fuel if the needles are being weird could also be the problem. Try with their box and use another throttle for easier revving. Also just a though idle screws can assist you with the rev (if you can access it)
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Make sure theres no mouse nest or bees or any crap in the exhaust. If the carbs are good and bowls are filling with gas check to see if the plugs are getting wet. It may be getting flooded. Or, its possible the rings are seized to the piston and not sealing enough to give you any compression. Valves could be stuck open also. Take the rocker covers off and make sure all of the valves are coming up of you aren't getting compression. Get a compression tester. Theyre like 20 bucks at harbor freight.
Your on the right track as are your followers. Those are CV carbs, and the slides are driven by vacuum at the top cap, and the slides have to be satin slide. Can't be any vacuum leaks to the diaphrams or the peacock either. She will start if your valve clearances are on spec, with start fluid. The plugs are resistors, not going to work. Your float levels need bench set. Best wishes.
I would definitely invest in some starting fluid. Hook the throttle cable up to an old brake lever from a bike or even the clutch lever temporarily. I would leave the battery tender on while trying 2 fire it. Hopefully hooking up the throttle cable 2 Something allows you the extra maneuverability to manually choke it and hit it w starting fluid to finally get that first start out of the way. Good luck!
You should definetly try spraying starting fluid in the intake before buying the carburators and also if you can get it to fire up with starting fluid the higher rpm might suck gunk out of the carburator and allow it to stay running
First
Floats jammed up? Mine does it a lot find myself taking my carb off twice just for a simple clean lol, blocked jets? Or what about jammed tappets?
Starter fluid first. If you hold the can back far enough you can prob run it for a few seconds off just starter fluid. May have someone else hit the start button. Open the chokes back up. Get two cans of st. Fluid spray a couple seconds in each carb. Then try to start it. If it fires up use one can for the left carbs and one can for the right. You can pulse the triggers on the cans to give it just enough to keep it idling.
Starter fluid!! Or poor gas in the cylinders
First time I've ever heard a yankee use the term Cattywompas! Haha! Don't give up on it Bud. You will get it running here pretty soon.
Just put some starter fluid or gasoline in the intake of the carbs and inside the cylinder the next time you try to start it..... Its a carb engine, so you need to tune it to Rich setting because you do not have an air filter to limit the airflow. Do not flood the engine with excess throttle and Choke On. In that case, it won't start. Avoid giving it excess throttle during start.
once you get it running...put air box or some kind of breathers on it....(preferably air box) because the older bikes will not run right without air box
Pick up a set of used but free carbs and try to get all new cables as well. I’m sure you can get all that for under 200 bucks maybe less. Also see if you can find a parts bike if you have no luck with it
With a tripod your presentation could be much better. It would mean that you would find yourself wanting to edit much more, but you seem to have a growing base so... that's part of the work if it is what you mean to do
i feel this video was a little to long and dragged on a bit. but either way your doing a great job and i enjoy learning with you watching these videos. excited to see this thing fire up!
Get new spark plugs there was smoke coming out the exhaust witch means the spark is not hot enough I had this same problem I bought new carburetors thinking it was the fuel I basically wasted money and time
Hello your spark plugs are not placed organized this problem happend to me i re-arranged them in the right places . It runs smoothly and i had no problem . Sorry for bad english
Yea, starting fluid spray directly into the intake. Check valves for sticking open and adjust the lashe.
Use starting fluid till u can get it running I've been doing mechanic work for 17 years and I've I had this issue a few times with thing that sat a long time starting fluid helps a lot and try to get the chokes to work so you can control it so you don't flood it
also, did you put the throttle slides in the correct way? there should be the tiniest gap inbetween the throttle slide and the venturi at idle
Hey make sure u read this asap. With those old school carburetors they do not have Jets to have slides on the inside of the carburetors you can raise lower the little c clip if you raise it it'll add more fuel I mean lower it my father is an old school bike mechanic you have to have the original carburetors for that bike and you have to have to put the airbox on it for those carburetors to run right you can use aftermarket carbs but it will not run right you have to put the original carbs and you have to put the original airbox on it for those engines to run right they were designed to run with an air box trust me put the old carbs back on it and put the airbox on it and it'll be a new animal
You had mice living in that engine, I would suggest to strip it down in case there’s any unwanted things there especially the exhaust. Good luck
Check for compression. Valves may have stuck open if they haven't moved in a decate. Take the valve cover of and see if they are moving and check for gaps.
Put a little bit of gas in each cylinder with the plugs out then install the plugs back in if it fires with gas down the plug hole you know it's the janky carbs you can do it your almost there 👍👍
You need to put your choke wire on and get some starting fluid and maybe even a new starter or have it on the charger when you crank it cause it’s not cranking very fast, when you took the spark plug out it almost fired because it cranked fast to get more spark
I think they rebuild because they are sit like long time and the engine parts they are most of them they are rusted and freeze