I just tore my 03 CR250 down yesterday and took the clyinder to the shop. They told me I should replace the piston
when I do a rebuild. I am OK with that as the skirt looks a
little worn. My cylinder is an A, so he got a Pro-x piston (a)
off the shelf , inserted it into the cylinder and kind of eyeballed it.
I know that when I build a 500hp V8 piston fit is crucial.
But I am new to 2 Strokes. Is this OK ? Or should he be
measuring the bore.
Also, any advice on piston brands etc... I mainly trail ride,
( at a fairly aggressive rate !) and dont want to have to tear the bike down 4 times a yr.
Thanks for your input