sohc

In an effort to avoid repeating a question that has been discussed-to-death, I looked through the Forum to see if I could find posts on this issue. I was unsuccessful. If it's here, please point me in the right direction. If it hasn't been previously discussed (and I find that hard to...

Hi, 1971 CB 750, runs well, carbs synced. With gas off, slowing down I get allot of sputtering as I down shift. I have check plugs and moved needle to lean out mixture with no improvement. I am guessing it is running rich. All jets are stock and I have stock pipes & stock air cleaner. Top end...

I understand that every bike has different requirements for carb jetting, but I feel this is super weird. Let me know your thoughts. I just finished a build and now I'm trying to get the carbs in line. I changed to UNI air filters and a 4 into 1 exhaust. I expected a significant increase in...

Was wondering if anyone has an exploded view or assy view of the shift mech. for a 73 ish CB750? Below is the assy I am asking about. I have all the parts but were in a box when i purchased this bike. The manual I have is terrible as far as detailed views or explanations. Thanks!!! UPDATE...

I understand that these bikes are pushing 50 years these days but surely there’s still a way to get new clutches (plates and springs) for them right? I’ve done some digging online and found only one place that seems to sell it as a kit. After a little more digging on some more common sites...

I am doing a partial rebuild on a 1973 CB750 engine. I was wondering if anyone knows the tolerances for crankshaft to bearings. I just picked up some plastigage and cannot find the tolerances for this engine. Thanks!

I see where people use a grease gun to remove stuck pistons in calipers my question is do they put a grease fitting in the line or the bleeder hole and what what do they use in the other hole to seal it. what sizes fit the holes mine is a 1998 750F supersport

Just sharing my progress on my 78 CB750K. Its been a work in progress for the last three months. Backyard find for $400. Before pic attached. Every bolt including the engine was redone by me. Any questions or sharing what I've learned along the way let me know. I'm definitely not a pro, but...

What type of caliper grease should I use when rebuilding caliper? I have the heavy black brake grease by CRC

But a thread about big-bore kits and other modifications for them to work optimally. Several decades ago I did a Wiseco 836 kit conversion to one of mine. I seem to recall the kit included heavy-duty studs (or maybe not...) but the shop I bought the parts from made sure they were included. This...

can you reuse con rod bolts on a cb750 f1 1976

When do the changes made to the 69, 70, 71 72 and 73 CB750 take place.... are those early engines compatible to say 74 or 75? Does someone have a list of when changes occured... much like the Corvette's C1, C2 etc.....? Or where I might find a list like that? I think I need to be more...

Hello everyone, I just wanted to share a design I made. I have a 78 CB750 with the Keihin carbs. I changed out the throttle shaft felt seals and accidentaly knocked out one of the throttle shaft plugs on the number 1 carb. I guess while riding it came loose and got lost. I looked everywhere...

I picked up an 82 CB750F that came with some spare parts. Can anyone identify what years makes models this fits and value? Thanks

I picked up an 82 CB750. This cowl came with it. Can anyone identify what years makes models this came off of and value? Has some cracks in clear plastic. Thanks.

Hi ya I remember a mod done to the carb slides machine .008 off the lower back side to help the transition from violet jets to main jets. I have done this on my 71 and when riding it is a bit smoother but when shifting the rooms do not drop far enough to make a nice smooth shift.I have gone...

This post is really asking two questions. Is there a way/What’s the best way to tune the carbs without those pressure gauge setups that I see on youtube? Also, my bike used to run fine-ish, but lately it had been choking itself out. It would run fine for a spell, then stop revving past 3/4k and...

Thinking about replacing the old shocks and wondered if any of you had experience with the stock design sets from VIntage 750 ? https://www.vintagecb750.com/products/3/suspension-wheel They look at different than the stock ones that I have on the bike as shown.

Hi folks. I'm rescuing a 1977 CB750F from many years of disuse and neglect. The brackets that hold the air box to the frame are rusted up pretty badly. When I tried to disassemble the box to remove them, I've encountered the spacer that goes on the long screw that clamps the two halves...

Hello everyone. I am new here and dont actually own a cb750 yet but I am looking at buying one for my next project. I am currently looking at a k3 that had a burt cam journal. The bike comes with a spare head. I have a fair amount of mechanical experience so I am not afraid of mechanical work...

Took 3 of us to drag it to and on the trailer yesterday, front brake was locked. one owner 30K plate sez 08 My wife Allison got a nice lunch for the ride along and helping load. ;^) Today with one plug out checking spark and a float drain open running out old gas, it started! when I kicked to...

Looking for a lifting plate and the little spring that returns the clutch lever. Thanx in advance.

I purchased a Barnett heavy duty clutch for my 750 many years ago and am now installing it. The kit came with 2 more fibers and steels than factory. I measured the fibers and they are at discard measurement of 3.0 mm which I assume makes up for the extra fibers but I am having problems...

I have a 78 cb 750 and have been looking at lowering the front. I know the 77-78 sit about 2" higher than earlier models due to the upper triple tree and tube length. Question I have is can you all show me your front stance and measure top of top triple tree to bottom of fork? I'm trying to...

I have been working recently on a 71 cb 750 that I purchased,I could not get #2 to fire ,I checked compression,spark they both seemed ok ,I could not get #2 bowl to fill with fuel,I also checked the bowl vents on advice from the forum,finally I pulled the carbs and found that #2 slow jet was...

What's up Guy's? I'm New to the Page, I have a 74 that came with Tank and Plastic's from a 78. It has the Pumper Carb's from a 78 as well. Anyway's I also have an 84 CB-650 with no Title and I was wondering if it was possible to mount the Twin Disk front Breaks it has on my 750's 19" Lester Mag...

Hello, I recently bought a 1977 cb750 k7, however, the fuel lines weren't connected. It looks like the carburetors have two inlets on top, but I can't find which one connects to the fuel tank or if both have to be connected. Could anyone point out what each inlet is used for?

I have a 1982 CB 750K 4 cyl dohc, stepping on foot brake doesnt light the brake light is that normal?

1982 honda CB 750K DOHC 4CYL

Is there a switch to turn on brake light when the foot brake is applied? if so where is it?