Hey guys I got a 30cc homie from a garage sale brand new for $20.never was started.bad news is when I was working on it I pushed the piston up to far in the head and when I tride to pull it out it was stuck,you know what happend then,busted the top out trying to get it out.well new piston .I do have all the porting ,chain saw carb,and block done nitro/gas .I should have known but all I have had was 25 cc without the top ring.Good news is my sig 1/4 piper cub is almost done windows and covering the landing gear and mounting the tank down.Just in case the lawn shop dosnt want to sell a piston,where is a good online shop?