Well the 350 i picked up suffered the ol muffler leak. Tried to clean up the transfer but im still hanging my nail more than once, was origionally going to use 353piston in orig. Cyl. W/base gasket delete, but now ill have to use the aft. Mkt. Cul. Ill keep working on the orig. Cyl. Ill keep it and just keep sanding 800 grt. Still has the plastic clamp im surprised it wasnt leaking from the intake, but that side of pist, cyl is clean, im putting steel clamp back on. We will see how she goes. Otherwise the saw is pretty damn clean, non primer bulb saw.