dohc

Good afternoon everyone. They would help me a lot if you try to help me with my problem. I have a 1982 CB750 KZ, RC01. The motorcycle was stopped for 25 years when I bought it. I restored everything I could myself, but I did not open the engine. I cleaned the carburetion myself, but the...

Has anyone fitted an M-unit to their CB750. I inherited a real mess of a wiring system when I bought a project bike (1982 CB750) from a kid that ran out of steam/skill when building a café racer. I'm left with just the electricals to sort out - but a lot of wiring has been replaced (using all...

Hello everyone, I have an 81 CB750c that’s sat for about a year, before storage she started up just fine. The bike will want to turn over with no key in ignition and kill switch off. I’m hoping it’s just a short in the starter relay solenoid and or a dead kill switch. Where do I start...

Honda's service manual says the OEM shocks for my 1980 K were charged with gas. I'd like to know whether, if I drill them from the bottom to replace the oil, they'd need to be gas-charged after refilling. If that's the case I do have the tools for that but would need to buy one of those fancy...

What's a good website to look for honds chopper frames

will a 1982 engine fit into a 1993 frame

Hey there lads, I was trying to perform a compression test but noticed that my tester loses compression fast, so I figured my litle screw in did not perform well, long story short i noticed I have a damaged thread in cilinder one. I have no idea how , because before the compression test I was...

Hi guys, More question regarding my cb750c project. My 81 cb750c tank is in rough shape, the paint is nearly completely gone, the inside is rusty and there are big dents and creases in the steel so it's gone past the point of me wanting to restore it myself. The question is will tanks from...

Hi. 1980 CB750 Custom Just did compression test and was surprised by the numbers. Cyl. 1 = 95 psi Cyl. 2 = 100 psi Cyl. 3 = 50 psi Cyl. 4 = 70 psi How can these be this low and bike starts and drives? Valve clearance must not have been done by previous owner and if I understand right, the...

Hi all, i am tearing down a 1979 CB750 (RC01) engine and the person I bought it from has secured all bolts with something fairly strong. This has resulted in 4 broken flange bolts when I was removing the camshaft cap holder bolts in the cylinder head I’ve removed one of them but messed up the...

‘79 CB750F S/S 🏁

Not done yet but getting there…

Here is video…

Can anyone tell me what size the battery connection cables should be? The black one going to the frame (ground) is there but the RED one going from the starter main fuse box is fully missing. I need to replace it with a likewise size but have no idea how much the starters from the CB750 rc04...

I have an 81 cb750k recently rebuilt the carbs bench synced them also put the gauges on it and it seemed close at the time and finally coming back to it after 3 month. So first question is would adjust the valve shims change my synchronization? And also would having them no perfectly synched...

Hi All Please help if you can, I have just joined the forum so apologies if this has been dealt with before. 1980 CB750F DOHC Starts easily. Has good compression. Idles well. Initial acceleration at minimal throttle is good, but as soon as you open the throttle wide. Engine stuttering and...

Purchased this bike from another guy on this forum nearly 5 years ago. Had planned on restoring it myself, and quickly found I was in way over my head. Been a while, but back from restoration and finally put some miles on it today.

Hi all, I have both NGK resister plugs (5k) and plug caps (5k) and this looks like too much on the spark as I have to set a small gap. I want to drop one of the resisters on each plug but do not want to replace my iridium plugs so looking for a set of recommended plug caps for this model...

Hey there lads, I have a CB750F bol d'or from 1982 and after removing the tank today I notice a bracket did not align well. Upon inspection I can't say if the frame is bent or if it is badly welded. The motorcycle had an accident and the front forks are slightly bent. the same side has some...

Guys do you know the size of the front and rear bleeder screws? Thread in mm length in mm Both front and rear bleeders on my 750 are completely frozen, bike was stored for 15+ years Tried every trick to remove them without success (heating, brute force, etc) I will probably need to drill and...

I noticed the intake cam chain (part #6) tightens and loosens when I manually turn the engine over. I'm aware that chains have tight spots but when this loosens up it's hits the chain guide that goes overtop (part #14). If I adjust the cam chain tensioner once the engine is idling (part #11)...

Hi all, My first post, unfortunately is a question rather than an answer. The short of it is - can anyone tell me the fuel measurement on a 1981 CB750K? To be clear its not the float height I am after, I know this is 15.5mm, its the amount of fuel this will set i.e. would this be on...

what would be the best material to use to install a new handle bar oem rubber grip.thanks

having valve job done on an all original, stock 81 custom with 47,000 mi. considering replacing valve springs and having trouble finding OEM replacements.I haven't measured the original springs. I assume they would be tiered after 42 years. APE. VS900H heavy duty racing valve springs are an...

I've been all over the internet looking for rear shocks for my scrambler build. I haven't been able to find anything. Is there anyway I could adjust the frame of my bike to accept a wider variety of shocks? I see that the OEM shock setup is one eyelet and a fork that attaches to the frame. Most...

Hey guys, I have a 1980 CB750k that I bought for very cheap as a project bike. This is my first bike so everything is new and a learning experience. So let's get to the point of why I am making this post (I've tried researching all over before making this post). Essentially I have got the bike...

I want to buy a good tool for adjusting the valves on my DOHC CB750k. Is the OEM Honda two piece tool (07964-422000A) better to buy or the MotionPro "c-shaped" one?

82 750 nighthawk with 4,500 miles on it. It hasn't been tagged since 03. I've put 2 batteries on it. One just kept going dead. I checked the rotor and it's sitting on 5.2 ohms. The stator tested fine but they both looked rusty. I cleaned them up. I've only rode this bike 10 miles since I got it...

Hey there guys, I recently bought a CB750F from 1982 and it will be my first build ever! I'mvery stoked and pleased! The bike I bought has damaged front forks, thae motorcycle had a minor accident and they are slightly bent in one side. I want to replace the front forks and rear shocks with new...

Recently bought a 1980 750F, sitting for 15 years ! The starter is slipping, did new springs, full cleanup and its worse than before, will not engage at all. I just Noticed the big gear wobbles, is there a cure for this? replacement gear? shim?