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AVL replacement inner chaincase

Posted: Tue Dec 21, 2021 11:09 pm
by Allanfox
Evening all

I am in the process of replacing the inner primary case on my AVL Electra X so I can lose the ‘lump’ left after removing the starter motor. Managed to find one from a home market 350 AVL, can see I need to drill and tap the three crankcase locating screws ( expected that) but have come on another issue. The non starter case has much thicker bosses where the three screws locate and they stick out far enough to stop the crankshaft sprocket locating fully as the bosses hit the now redundant starter gear that is part of the crankshaft sprocket. I could either machine the case back a bit or fit a crankshaft sprocket from a non starter engine without the starter sprocket. Does such a sprocket exist for an AVL engine that would fit?

Re: AVL replacement inner chaincase

Posted: Wed Dec 22, 2021 11:26 am
by Adrian
Fit a standard 25T kick-start Bullet engine sprocket.

Don't worry if it's not quite as tight on the crankshaft splines, just nip the Electra's sprocket nut up nice and tight.

A.

Re: AVL replacement inner chaincase

Posted: Wed Dec 22, 2021 4:06 pm
by Davedup
Engine sprockets are readily available.

I did the same mod on my 2006 Iron Bullet home market model.

Dave

Re: AVL replacement inner chaincase

Posted: Thu Dec 23, 2021 3:37 pm
by Allanfox
Thanks chaps, parts on order!

Merry Christmas!!