Hi everyone just wondered if any of you know of a way to lighten the clutch (ie) the handbar lever operation.
Thought about lengthening lever out of the timeing case but it looks a bit flimsy.
Thanks.
B40 fan.
The three things that can give you a heavy clutch are poorly adjusted operating mechanism, poor clutch cable run or clutch springs tightened down too much.
The adjuster in the centre of the clutch needs to be adjusted as per the manual. Once done, the operating lever on the RHS of the engine should roughly form a right-angle with the cable when the clutch lever is pulled in.
In terms of the cable, it needs to be in good condition and needs to be routed so that the radius of any bends is as large as possible. If the cable is too long, this can sometimes result in a less than ideal cable run.
In terms of the clutch springs, you would need to take off the chaincase in order to check how far the spring nuts have been screwed in. The less you tighten the nuts, the lighter will be the clutch lever but they need to be done up as per the manual to avoid clutch slip.
On BSA unit singles, the strength needed to operate the clutch lever can vary a lot depending on how everything has been set up and adjusted.
The wrong handlebar lever?
BSA used levers with pivot to nipple centre measurement of 7/8 inch.
Levers also come with lever pivot to nipple centre measurement of 1 1/16 inch.
The later givers a heavier and more sudden clutch action than the former.
Thanks very much I will check lever as you suggest
Hi,
A bit of an obvious one, but make sure the cable is nice and free in itself. There should have no resistance to the inner sliding in the outer. If replacing the cable, get one with a teflon/ptfe liner.
Dave.
Just to say Thanks for all your help sorting my B44 clutch, different h/bar lever correct routing of cable all good.
Thanks Brickie.