dolmarphil
ArboristSite Lurker
hi, i have a stihl 011avt in repair and i dont find the troubl.to keep the saw running,i have the L screw open about 2 1/2 turns out.i replace the fuel filter,fuel line,vent hose,spark plug and the carburetor gasket.I do a pressure test and it there is no leak anywhere.
But i take the compression on the saw and cold it give about 130 Psi and when warm it drop to 90 Psi.The piston look good with no scratches.Could it be the piston rings that give me this trouble?
But i take the compression on the saw and cold it give about 130 Psi and when warm it drop to 90 Psi.The piston look good with no scratches.Could it be the piston rings that give me this trouble?