I zeized up the engine I'm thinking its the top end but haven't tooken out the engine dew to snowy weather and not have a garage , what piston should I buy for cheap and good quality .? I was thinking on opening up the intake and the exhuast for a bit of extra power . I was also thinking of buyin some a/m reeds , oil block off kit . Or does anyone no how to block off the injecter without the kit ?. Lots of pictures will be posted of the rebuild .