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clutch

  1. D

    Clutch problem possibly??

    Hi I have a 1981 cb750k it's been doing good lately runs really strong but when cruising at about 45-50 I'm doing like 5 to 6 thousand rpms it also won't idle down at lights stays at 3,000 any help would be appreciated
  2. P

    Friction material came off of friction plates inside the clutch

    Clutch was slipping yadda yadda, i bought new plates all 14(?) of them, excluding the double plate for my '78. While i'm inspecting the old friction plates i notice that the material is nearly gone on some of the friction plates. I had also noticed the oil light coming on while the motor is...
  3. thughes0025

    Getting some speed out of a 81 cb750c

    I'm new to this style bike had a 05 R6 for many years now I know the 81 cb750c isn't even close the same but I would think 60mph an tacking 5,000 rpm is a bit hard on her...ol'girl runs like a top just seams she's reving extra high on highway...umm was thinking sprocket change would help just...
  4. S

    Clutch handle wire

    Anybody know what this wire does? All lights work fine and clutch works perfectly. The wire is still here but P.O. must have broken the connection in the handle. Does this need to be fixed ?
  5. J

    Starter clutch oil seal on a 1979cb750f Supersport dohc

    Where does it go please help ?
  6. P

    Best place for a clutch replacement kit?

    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...
  7. M

    Lifting Plate

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

    Barnett Clutch

    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...
  9. Rampton

    Cb 750 infamous clutch rattle

    Installed double b plate managed to get an original from Holland started the bike and noise still there, pulled clutch lever and noise disappeared. Ordered the clutch rubber kit from the guy called Wout from the Netherlands 65 euro. I posted installation instructions a while ago. I will give an...
  10. B

    I need a spline washer for my 1978 cb750f. I found one, thank you for reading

    While changing the clutch plates on my bike, I somehow lost the spline washer. It is OEM Part number 90432 392 000. It is a 25 mm washer splined on the inside. It is interchangeable with washers from 1976, 1977 and 1978 cb750, either the F model or the K model. I am down and out until I find...
  11. B

    Clutch and oil problems

    I have a 1978 CB750F Supersport. Last fall I did an oil change and I removed the clutch assembly to inspect my plates. The clutch was slipping earler in the year, but after adjustment was working well. I have 6 friction plates the same and 6 steel plates all the same except one is a double. I...
  12. Clark204

    Clutch Issues

    Hi all, I’m new to the forum and was hoping for some help. I recently purchased a ‘75 CB750 that had been in storage for some time. I got it running and rode it last year with no issues. I decided due to the year of the bike that I should probably update a few items, one of which being the...
  13. M

    MRE spacer on clutch housing

    Found an old engine and in the photos there is a spacer labeled MRE between the block and the clutch housing. Does anyone know what this is? 1980 DOHC for a custom
  14. Rampton

    Update clutch rubber kit

    Hi guys took me some time but I found the Guy who makes the clutch basket replacement rubber kit for that annoying clutch rattle on the Dohc cb750's. His name is Wout Van Veldhuizen from the Nederlands. Email is vanveld@hetnet.nl the price to UK is 65 Euro, hope it helps, thread now complete...
  15. Rampton

    Clutch rubber replacement??

    Hi does any cb750 Dohc owners know how to contact the guy who supply's the clutch rubber replacement. The one where you drill out the rivets and replace rubbers re-tap and install the supplied bolts think he is from Holland or Sweden??
  16. C

    '80 Super Sport Starter, Reduction Gear, Starting Clutch

    I recently purchased a '80 Super Sport that has been sitting for four years. Rebuilt the carbs, new battery, new spark plugs, and tried to start it. At first I had some trouble getting it to turn over and thought I broke the starter because all i could hear was a beep/squeak coming from it...
  17. L

    CB 750F Mainshaft Length

    Hello, I am near completion of a 1976F CR Replica. I purchased the bike near completion and is having trouble with installing the clutch. The mainshaft spline is approximately 21.00 mm and the inner and outer basket is the same as a 750K SOHC. The mainshaft spline is approximately 25.50 mm on...
  18. Radwildlove

    Bike rolls in gear

    Hi there! I have a 1974 cb750 and I recently replace the clutch and now after all is done the bike rolls and every gear. The bike was working fine before replacing the clutch besides the RPMs would rise very fast. So I decided to replace the clutch to see if that would help. Any suggestions on...
  19. T

    Steel plates?

    Having an issue whit my old lady,whit a slipping clutch,and i have replaced the clutchplates,put in cb900-springs,using a special oil for slipping clutches,sandblasted the steelplates - all adjustments r according to the manual - and only thing i hav'nt check is the thickness of the...
  20. N

    1980 Honda cb750k rev and carb problems with smoke

    Hi, I am new to automotive work I am 21 years old and bought a 1980 Honda CB750k it runs and hits top gear. there are a few issues with it, 1.) Gas slowly leaks from carb it drips slowly. 2.) the engine seems to be smoking while running it when it gets hotter and sits still, maybe just the gas...
  21. M

    1980 CB750C Custom

    Purchased the bike two weeks ago. Throttle wouldn’t turn at all and front brake didn’t work. Rebuilt carbs, rebuilt master cylinder, new tires, new battery, got it running last night. Went to take it for a very short test ride after work today and realized the clutch is not working at...
  22. P

    Clutch very stiff and won't disengage

    Newbie here. Read all the posts in the clutch section. Still Stuck. Great help out there and hope my error can be pointed out to me. I have a 82 CB900F with supposedly 29,000 Km on it. Looks like a rough life and been down a few times. Engine now running okay after total clean and rebuild of...
  23. R

    Clutch Knocking

    Just purchased a 1982 CB750SC, 26k miles. Making my punch list of items that need addressing. Bike idles rough but runs strong. Valve clear check 1st on my list. I did notice that at idle, there is a knocking sound coming from the engine that is reduced when I pull in the clutch or when engine...
  24. V

    Clutch replacement

    Does anyone know if you have to remove the center nut in order to replace the friction plates on a 95 Nighthawk CB750?
  25. S

    Clutch issue

    Hi there, new to the group. I have an 1980 cb750c I've been working on, not sure last time it saw pavement, was a bit of a barn find. Just rebuilt clutch, new plates. My issue is when the clutch cable is attached and pulled it feels like the piston on the inside of the clutch cover, has no room...
  26. D

    CB750K4 unbreakable clutch lifter plate.

    Hi there all, I new to this site and I'm hoping someone out there knows where I can purchase a CB750K4 unbreakable clutch lifter plate, the cost and if it can be shipped cheaply to Sydney Australia? Regards: Doug from Sydney Australia
  27. G

    Hard to find neutral.

    Hi Guys I am new to this forum and have a 81 750. I have been rebuilding the carburetors and haven't got the bike running that good yet. One problem I have is when I have the bike running I can't get it into neutral but with the engine off I can easily select neutral. I have adjusted the...
  28. O

    Clutch Basket End Float question

    Hi I have just finished rebuilding a 1980 CB750K it runs well but is quite rattly, its had new cam & primary chains. I have replaced the rivets on the clutch basket gear with bolts and there is no slack now. The question i have is how much end float to expect on the when its assembled, there is...
  29. C

    1983 CB650 Gear Lash

    Howdy, Bought a new (to me) 83 650. Overall really pleased with the shape that it's in. However, I noticed a large amount of gear lash, as in the rear wheel rotated about three to four inches between positive lock-up with an engagement surface someplace in the transmission. Makes it a little...
  30. T

    Clutch problems, CB 750 K RC01 1982.

    I'm trying to get my CB 750 K RC01 1982 to run. There's always new problems when one is solved. I think this sound fits what I have on my bike. What do I need to do to fix this and what is needed? Also the clutch doesn't work. Can change gears when engine is off but when it's on the clutch...
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