me the one with all the dumb questions...wants to learn and quit asking dumb questions...gonna rebuild an 025 i got ripped on about a year ago...bought it for 100.00 and it needed bearings without me knowing it....well i tore down the whole saw tonight..im including pics of piston and cylinder...to me the cylinder looks fine...piston is iffy...its about half black on top of the piston that u cant see in the pics...so heres some more questions..lol...should i buy piston...cylinder?...and how the hell do i get the bearings off the shaft?..this my first try at this so any tips would be appreciated....