SOHC.co.uk Forums > CB750

Fork oil height..

(1/2) > >>

Lobo:
Hi all,
Having to top up folk oils (K2) as a leak on one side through the cherry treated copper washer 🙁...
Rather than drain / refill, can anyone advise me the distance of oil to top of Stanchion, and whether springs in/out, fork collapsed or extended.
(SeanSD recently advised 140mm... but went on to add the below, which has kinda put me off (sorry Sean!)
Cheers,
Simon

“I’d be interested to hear what others think of this, because after replacing the springs and shocks (IKON also) the bike developed a severe head-shake at about 35-35kph if I took one hand off the bars. This quickly settled and at higher speeds it was fine. I have yet, 20,000km later, to solve this problem, so any ideas welcome. I have just rebuilt the forks completely while replacing the seals, so here’s hoping 🤞”

Erny:
Check steering stem bearings if they are not loose of worn. I had this problem on my previous Honda CBF1000F, the same behavior that was getting worse and worse.
It was cause by worn bearings but the way impossible to recognize when assembled (just when I took forks off and only stem and upper top tree left, I felt that bearing movement was not smooth, it was kind jumping). Replacing bearings by tapered one totally cured problem and no more issue after for next 40.000km

Bryanj:
That was never speced by Honda so its only if somebody has measured it

SteveD CB500K0:
Can you not just measure the one that doesn’t leak?


Sent from my iPhone using Tapatalk

K2-K6:
You can work it out.

Take the spring out,  push stanchion up to full compression,  then measure from top of stanchion to down to seal face,  that's the level to set as it will always cover the damper valves but not hydraulic lock against the top cap when reassembled. 

If you increase the volume from there it effectively adds more of an air spring effect to the fork particularly under max travel.

Navigation

[0] Message Index

[#] Next page