SOHC.co.uk Forums > CB500/550
stiff clutch
Bryanj:
Sorry Florence, nothing personal, the ones i meant were the ones who go to a parts bin and fit something from another bike.
The design of the clutch operating mechanism does tend to let the clutch slip on takeoff and power changes, my first one did for many thousands of miles and when i took it apart measuring everything all was still in book spec, i have a parts book with hand written notes( from the us ) that says use a different number plate and spring, i think from 450 twin
florence:
Thanks Bryan, yes, I saw that online about 450 plates. Nowadays the EBC kit works well. I have been trying very hard to make it slip ;D and so far slip is gone, although first gear is quite tall and a bit of slip is required to get moving on a hill for instance.
Seabeowner:
500 SB9 8/11/76 (USf ormat) was issued to supposedly reduce friction and wear by changing the material of the adjuster. (the bit with the slot). This seems to be after all the 500s had been produced but presumably as a result of complaints. The design is a carry over from smaller capacity Hondas of the mid 60s and made it's way up via the 450.
It can be smooth but I would not describe it as light. The 550s are light.
neat street:
Thank you all again for your responces :-) As it seems that some parts are suspisious (cable), and others worn (aduster) I have bitten the bullet and now ordered new springs, the clutch adjuster kit, need to order a new cable just to rule this out as well (recomendations please for cable). I will replace each piece one at a time and test, so hopefully I can help others with a solution should I have one that does not require all parts.
McCabe-Thiele (Ted):
On my 500 K1 that had standard UK aftermarket bars I bought a new clutch cable of the right length from Wemoto £12 in 2023.
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