engine

1982 CB750 DOHC The head is removed, awaiting new head gasket. So I am preparing the valve clearances and want to know how to mock these parts up. Head has valves, springs, shim bucket installed. Can I simply install each camshaft in the correct position (using the small mark on the right...

Hey guys this a first for me. My first post and first cb750. I need to know the year model. (for as i know) all i have is this number on the top of the engineCb750E-2410078. Thnaks in adavance. john

Hello, Looking to buy a 78 Cb750 and was wondering what a typical rebuild would cost and if anyone knows a good shop in Portland Oregon area. Thanks!

I'm rebuilding a basket case engine, 81 cb750k. The valves were not labeled or numbered. So I just cleaned everything and gave them a lapping. I'm at the point where I'm setting the valve clearences, yes I know, .005. So, I couldn't get a .0015 in with a the smallest shim I have, 2.75. So I...

Bike: 1972 Honda CB750 K2 This bike apparently hasn't touched asphalt for 15 years before I acquired it. Mostly garage stored. Wouldn't start at the guy's shop but would turn over. Brought it home and cleaned the carbs and the gas tank thoroughly. Started up first try and drove well. Ran a...

So, here's the situation. 1976 K model is stock as far as I know. Ran fine for the past year. No issues with accelerating or starting. Did a tune up, replaced plugs, points, condensers, and oil/filter. Timing is nuts on, checked with a light. Gaps are correct on points. Went out to ride and the...

So I'm currently in the process of putting my engine back together after completely resealing it and I've hit a wall. I'm just about ready to put my cams back in but while reading the manual I cam across it telling me this . What exactly is the "1,4T" mark/position? Does this mean that cylinders...

I have a 1992 Nighthawk 750. It starts fine but when I feed the throttle it cuts off. This happens in neutral or first when trying to take off. Any ideas as to what's wrong?

Hi guys, new here. I'm currently considering looking at a 82 CB900F. It is 3 hours away so I asked if he would send me a video. As you can hear it pops out the exhaust when he revs it and I was wondering if anyone knew what might cause it. Also would it be an indication of an underlying...

My cb has been bored out to 64.97mm. Ring broke in cylinder four. There is some scoring in the cylinder. I will need to have the cylinder machined out. Any one know what the allowable limit might be?

All spring on my rough idling, popping, grumbling 1977 CB750 I have (in this order): 1. Rebuilt the carbs (they badly needed it--new boots and top dust covers) -followed the Hack A Week video - thanks Dino 2. Tested the float level 3. Synchronized the carbs 4. Cut plug wires back...

Hello guys. So the plan is to assemble my top end to see if I have a zero clearance. So what was explained to me is that since I had the valves ground, the valve clearances will be that much tighter, to the point where I might have zero lash. If this is the case, then I am hoping to do a...

HI all, I've been working on getting this 76 cb750k going, it runs pretty decent but I have what sounds like cam chain noise, can someone please help me on this one https://youtu.be/qiu59Dffsrg

Hi, I noticed some oil leaking out of the left side of my engine (1978 cb550). I checked the oil level and it was a bit high so I went ahead and did a full oil change and made sure to fill to proper level. The leak persists at at seems to be a lower volume. When I reach 50 mph I see a little...

Wii a set of 1970 used crank shells work on my 1977 its a cb750. Thanks

I own a 1980 CB750K w/ Vetter with 34,000 miles that I have been working on for far longer than I care to admit. (I also own an identical motorcycle with around 23.000 miles.) Without getting into too much detail, my problem is this: I cannot get this thing to idle. I have rebuilt/replaced the...

I have a cycle x 850 kit, 65.5mm right? My bike already has been bored to 65mm (836 kit) the guy from the shop called and said there would only be 40though left on the wall, he said hes never went less then 60though and he said it would be hard to hone once it's that thin. Isn't the cycle x kit...

Using the Clymers Manual, I was able to fabricate a spring compressor tool out of a piece of pvc along with a large C clamp, gorilla tape and a piece of scrap metal. "Borrowed" some foam from work... Number 7 Intake Valve and seat... Combustion Chambers...Number one looks bad....

So, in my haste to pull the stator to replace starter clutch rollers on my 76 K I used a puller which apparently was a slightly different size to the shaft thread. Instead of resting on outer lip, the puller threaded into the shaft. It subsequently pulled half the threads out. Now the stator...

I recently purchased a 70's style chopper that I intend to build, it is in rough shape. Good AMEN frame and springer front end with a stuck 750 in it. I am looking for a donor bike with a title to transfer but am at a loss what to look for. Is there a major difference in earlier and later cb...

Hello forum, I need some advice from the experienced folks on a blue smoke problem. I purchased a 1978 CB750F Super Sport last week. It has 29k on the clock. The previous owner had it for four years, and it seemed to run well when I gave it a close look before purchase, but I think I have...

I just spun #4 piston can I just replace the1 bearing and clean it up and it's good to go

Looking for a good crank for a 1977 cb 750f thanks

So I got the engine removed from the frame successfully using the clymers manual... so far so good Measured valve clearances....needed a metric feeler gauge.... I used the book and the notch cut out of the end of the exhaust camshaft...I aligned it in each position relative to the bearing...

Gday Mates Greetings and salutations Im seeking some help and aspirations about a problem on my recently finished K1 750 the gold one ! So the engine breather hose comes from the cylinder head cover down to a low part of the frame out to atmosphere [no other connection] During a ride on...

Hi everyone, Just wanted to share some information about our latest creation. We believe this is the second biggest CB engine made (biggest is also ours with 1340cc (78x70mm strocker). What is special about this one is it uses the stock crank - 63mm stroke. Fed methanol through 33mm CRs fired...

so i couple days ago i stumbled across a 1980 cb750 that was last plated in 93 or 94 (plate says 93, ownership says 94) so, the bikes a bit of a mess, off the top of my head heres a break down: no throttle left control switch broken right control switches broken battery cracked open fuel in the...

Got a buddy telling me only use real oil but bike shop recommending full synthetic for old bike. 1978 cb550. I've run only real stuff but curious about pros and cons (if any). Many thanks.

Hello all, complete newbie here. Last summer my uncle was gracious enough to give me his 1980 CB750f. I am in the early stages (tear-down) of cafeing it out and the thing that is stressing me out the most is having to strip and repaint the block. As it sits it has some really nasty chipping...

I need to replace shims (probably all of them) on my '82 DOHC. Does anybody know of a place I can order them from? Thanks😎