dohc

what is this part that is suppose to sit in that hole??? thanks

Hey all, New to these parts and a bit of a dunce when it comes to mechanical stuff. I've got a 1993 Nighthawk 750 with 34,500 miles on it - bought it with 28k. I've ridden it a couple times offroad, enough to know that I should stop doing that - had the fork seals recently rebuilt as I had...

So will OEM exhaust from a Honda CB 750 C,.Fit an 1981 Honda CB 750 K ? I know Part #s aren"t the same,.

I bought this bike and it had been in storage for about 9 years, i have eventually got it near finished and looking quite good but the only problem I have is when you pull in the clutch lever the neutral light comes on so you dont know if your in neutral or not. Is this normal for this model?

Hey guys i have a cb750c from 81 which has the dohc and when i ride it it sputter from 7k upwards. When i give it full throttle it cant get higher then 7k but when i turn down the throttle it again starts increasing beyond 7k. I cleaned the carbs and checked the spark plugs. Can you guys point...

Hello, I have a 1982 cb750SC DOHC torn down. I'm inspecting major components before reassembly. I was curious if there is a validation / inspection for the primary chain length like there is for the cam chains? My primary drive train tensioner has some tearing to it on the outer most left side...

The bike dies when giving it throttle and I have been working through the carbs and the FSM. Set my float height and went to do the measurements for the accelerator pump. The rod rests on the control arm when the spring is out. With the spring in it is 0.5mm from the arm. When opening full...

Hello, I am new to this page and I was hoping to find some answers to my issue. I have an issue where my 1981 cb750k will idle fine (900-1,100 rpm) when first started. If I use the throttle and bring the rpms up they tend to stay around 2-3k which is quite high. The weird thing is that i can...

Currently rebuilding a 1982 CB750 I was putting led handlebar lights on. Got the first side on went to try it and the original signal flashed when selected (worked perfectly) then I switched to the new signal and got a steady light. I was confused (not knowing the LEDs didn’t provide enough load...

Hello everyone, I just bought a 1979 CB750K with roughly 30k miles on it and I am brand new to the Honda CB scene. The stock exhaust was rusted out and the previous owner swapped it to a 4 into 2. The carbs were adjusted and cleaned to work with the new exhaust and he put maybe 10k miles on it...

Hi all, I'm in the middle of adjusting the valves on my '81 CB750C. From what I understand the cylinder pairs are supposed to be in line with each other as you rotate the crank right? In other words, when the notch on cylinder 4, exhaust side, is at the 3 o'clock position, then cylinders 1 and 3...

I recently finished rebuilding a 1982 CB750C; body, electrical, engine, carb, etc. I fired it up for the first time the other day and boom - she came to life. That was cool. Everything seems to be okay except for a problem with the idle/throttle. I can start the bike and it idles okay, but when...

So a friend was looking to get rid of a "mystery" bike. I had no idea what it was. For free, just needed it out of the yard or it was going to the dump. It ran a year ago, sat outside this winter in VT. It was mild. He just wanted to pass it on to make it useful. I said at the least I...

I've read a few places that you cannot use different upper and lower engine case halves, at least for my 80 CB750K. I understand they were machined after being joined. Is there ANY way to mate them/use them together? Has anyone ever done it successfully? My lower case has a crack in it, and the...

looking to order tires to get the frame rolling after paint. sizes on it currently are 100/90/19 f and 130/80/18 rear. disc brake rear if it affects fitment. looking for a beefy look but im aware the rear may stay where they are at since it looks like any bigger and it will rub. thanks for any tips

I sent my carbs to Jack at Old School Carbs back in February. I know on his web site he says he has a 10 -12 week backlog, but when I've left messages there's been no reply. Hopefully he's still in business! Anyone have any insight??

I have a 1987 Honda CB750. I and not getting fuel into the cylinders but there is fuel pouring out of the bowl on carburetor number 1. They have been takin apart and cleaned very thoroughly. Will Fire right up on starting fluid. do they run on vacuum or something?

Would air assisted, 81 CB 900 C front forks be a direct drop in replacement for my 82 Nighthawk SC triple tree? I am pretty sure these are both 37mm forks. The axle mounts behind the tube, forgot what it's called. My inner tubes need replacing and I'm shopping on ebay.

Hi guys, new here so bear with me. 1993 cb750 Mostly stock except I cut exhaust pipes and added shorty slip on’s with packed mini baffles Electrical has been converted to LED with diode added Everything else is stock mechanically, only cosmetic work has been done. Gaskets all around despite...

All, I have a CB750 F super sport 1981 and I measured both picks ups, Hains say 530 ohms.. One read fine the other open circuit - does anyone know if you can get replacement without getting the whole pulse generator as its $350 US, I have only pick up bad. Is there any alternatives anyone know...

Hello: New member here. I’ve got a 1980 750k and just redid the carbs. It runs well but I want to tie in my manometer and sync the carbs. My Clymer manual isn’t real clear on where to tie in. It looks like there is a screw on each cylinder just in front of each carb boot. Can someone confirm...

Hello: New to this forum. I've got a 1980 750k that I've just done the carbs on and am looking to sync the carbs and set the air/fuel screws. My Clymer manual isn’t real clear in showing where to tie in my manometer fitting on each carb. I assume, I just pull out the screw on the cylinder body...

Hi all, I'm a new member here. With all this time at home I finally had a chance to get to a couple of projects. I just did a compression test on my '81 CB750C, wet, cold, and I got these results in, cylinder 1: 145, 2: 150, 3: 167, 4: 142. From high to low thats more than 17% so I know that is...

afternoon, new to the old school bikes but not to riding. always wanted an old cafe setup so, in short i bought a 1979 cb 750 super sport and am looking to build it as a cafe racer. had to buy a motor for it though. the carb was left open and got water into the engine. valves locked up with rust...

Does anyone know why the springs on the cam chain tensioners A and B have rubber tubes over them? I am wondering if I can put the engine head back together without these - they are hard to find. 1982 Honda CB750 Engine.

New to me '79 LTD with 5300 miles. Have put about 50 miles on the bike so far since purchase in November. I typically turn the fuel petcock off about a mile from home and put bike away after it stalls out. Today, turned on the petcock and fuel began draining from the tubes attached to the carb...

Since I am off for awhile due to the World crisis . I am working on 1 of 3 Bikes,. The rear Turnsignals on a 81 Honda CB 750 K. Are they supposed to be somewhat loose when you install the special screws,.?

Hi all, just purchased an '81 CB750K. Really stoked, can't wait to get her out for a run.

Honda CB750K 1980. Dissasembling the engine some small ball and washer drop from somewhere. I has not been able to find in any manual where they came from ( service manual / Haynes / Cymer). I need some help. I attach a picture. Best Regards

Will have to replace my valve cover gasket soon. Simple question....necessary to replace the 8 rubber setting washers too? Thanks.