I have just fit a standard new front sprocket, washer and nut on the J Buffalo. I have two questions please:
a) What is the best way to ensure the nut is tightened to the correct level? Do I put the bike in gear and then tighten or wait till the chain is fitted and then tighten or ...?
b) In terms of the washer behind the central nut, do I bend this over to trap/lock the nut or just leave as is? If I bend it , what is the best way to do this without attacking things with chisels and hammers? Pic below:
Many thanks, Mike
Burt Munro + John Britten + Kim Newcombe + Ivan Mauger = Kiwi Street Cred
Mike, there are two ways to do that. use a large screwdriver or similar to jam between sprocket and cases or fit a chain and hold it on the brake. or try a clutch holding tool to restrain the sprocket. Or make up a simple sprocket holding tool with two 1/4" pegs.
That washer is a lock/tab washer and part of it has to be bent up against one face of the nut. It's a little tricky so use a stiff knife or knife from the good dining set to start it and then use channel locks or a crescent wrench to squeeze it against the nut.