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#900116 01/12/23 11:15 pm
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mrcarb Offline OP
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The clutch on my A65 slips some when it’s cold and after a few minutes it is fine. I’ll try a few adjustments first.

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Yes, do the adjustments first. A too tight clutch push rod can cause that problem.

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The clutch discs swell with heat, especially the cork ones, so they will provide more clearance when cold and less when hot. I adjust mine so that I can back off the handlebar adjuster to start & ride a mile or so, and then bring it back up as it warms up. Adjust at the pressure plate when the engine is warm and the handlebar adjuster is backed off. Back the screw off from seated just a hair, maybe 1/4 turn, then bring the handlebar adjuster up to about 1/4" cable free play. Adjusting this way, I find that, when the bike is cold, there is NO cable free play at the clutch lever, so I back it off to get that 1/4" free play. As the engine warms, the slack increases, so then I bring it back up to 1/4".

If this sounds weird, I'll mention that the original BSA clutch discs did not swell like this. Also, I've only had limited experience with Surflex discs, but I believe they don't swell as much as the cork ones either.


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1/4 turn will work fine, but as the clutch wears this clearance closes fast , better to go with at least a half turn, the factory manual asks for one whole turn. This is set cold.
It could be a few things, oil type, general wear and tear, bad cable, if the adjustment doesnt work.


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When you set up the clutch adjustment at the pressure plate. Do it with either the cable having loads of slack or disconnected at one end. If there is any chance that cable is removing any free cable inner before you start then your already potentially on a loosing battle.


Life is stressful enough without getting upset over the little things...

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Originally Posted by Allan G
When you set up the clutch adjustment at the pressure plate. Do it with either the cable having loads of slack or disconnected at one end........

Cable loose but just enough adjustment so you can squeeze the lever and put some pressure on the clutch push rod when the lock nut is tightened up. This helps keep the adjuster pin from turning on you and screwing up your adjustment.

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Originally Posted by Stuart Kirk
Originally Posted by Allan G
When you set up the clutch adjustment at the pressure plate. Do it with either the cable having loads of slack or disconnected at one end........

Cable loose but just enough adjustment so you can squeeze the lever and put some pressure on the clutch push rod when the lock nut is tightened up. This helps keep the adjuster pin from turning on you and screwing up your adjustment.

Another way to do that is to have a socket with a hex fitting on the back end, run a screwdriver through the socket to hold the adjuster screw in place, and turn the socket with an open end or ring spanner. (You can also turn an ordinary socket with vise-grips, but that mars the socket.)


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Originally Posted by Mark Z
.......Another way to do that is to have a socket with a hex fitting on the back end, run a screwdriver through the socket to hold the adjuster screw in place, ......
Yep, that works too.

The OP is going to be a clutch adjusting maestro by the time he's done.


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