Looking in the Haynes manual regarding the c&s on the A10 and all i can see is that it says if the chain has stretched to a certain length then it's time to replace it.
It gives a measurement which is good to work to but how do you know when it's time to change the sprockets too?
It looks like to get to the front sprocket the clutch has to be removed and whatever else i don't know. The rear sprocket on my bike looks to be hardly worn.
To me that early Haynes manual is missing a lot of detail. >:( Is there a better manual available?
Sorry for the questions, this is my very first old British bike and it's like a whole new learning process. :-[
You don't say if you have a seperate gearbox or a bolt up.If about up it has a duplex chain then the clutch has to come off at the same time as the engine sprocket as there is no joint link in the chain. Normally if the sprockets are worn they start to hook.
You've already lost me with your terminology of a separate gearbox or bolt up.
I'm fairly certain it's a pre unit engine and inside the primary cover the clutch is connected with a chain just like the final drive chain.
So am i right in saying that i've got to take the clutch off to get a good look at the front sprocket. I can only see the front sprocket by looking from the back of the engine.
I know that when sprockets are worn they hook over, i just can't see the front properly.
Is it an easy enough job?
If the chain is a single strand like the rear then you will not need to touch the clutch. Remove the outer chain case and you will be able to check every thing properly.
Hi Catz,
Looking at the photos that you posted of your bike I would guess that the sprockets are in good order.
If you google 'worn chain sprocket' you will get plenty of images of sprockets and some idea on how to determine if it is too worn to use.
Dave.
Thanks for the replies.