Trent Curtis
ArboristSite Guru
272xp- new piston and rings (meteor). Base gasket delete and new crank seals. Rebuilt carb, new fuel line and fuel filter. New tank vent as well.
Afterwards the saw would high idle after running briefly at WOT. Swapped to a brand new carb and it’s doing the same thing.
Vac and pressure test held like a rock-
Saw idles great- but after running WOT the saw doesn’t come back to idle...... idles up and stays that way until fatten the low side. Settles down immediately- but the same symptom appears again immediately after another shot at WOT.
Sure seems like an air leak- but doesn’t make sense with the vac/psi test holding like they did. Impulse hole seems clear all the way to the crank.
Ideas?
Afterwards the saw would high idle after running briefly at WOT. Swapped to a brand new carb and it’s doing the same thing.
Vac and pressure test held like a rock-
Saw idles great- but after running WOT the saw doesn’t come back to idle...... idles up and stays that way until fatten the low side. Settles down immediately- but the same symptom appears again immediately after another shot at WOT.
Sure seems like an air leak- but doesn’t make sense with the vac/psi test holding like they did. Impulse hole seems clear all the way to the crank.
Ideas?