hi, i was just wondering if anyone know where i could find an expansion chamber for a 1988 yb100 or would i have to get one made up special like?

edit: also what oil do i use to re oil the air filter?

i seem to remember the fsie fitting a yb100. although it was a long time ago i messed with fizzys and yb 100s. i remember we fitted a yb100 engine in a fizzy frame, that had a expansion chamber on it but i dont remember which bike it was off.

ebay is the place, i managed to get one for an old 1983 kh100 last year.

any engine oil will do but why not use a little two stroke oil.its only to catch the fine dust in the air.

good luck with it chris