woodbutcher56
ArboristSite Operative
I have a ps421 bought new in Nov.2015. Always kept clean .I run 93 octane sunoco gas with Husky oil. I really like the saw have cut around 6 chords of firewood with it without a problem . I was cutting some oak tree tops Friday and the saw all at once would not idle down, didn't stay at full throttle but high enough the chain was spinning pretty fast. I shut it down and checked for obstruction in the linkage checked to see the fuel filter was still in place. Still had 1/2 tank of fuel.??? Restarted still wouldn't idle . I let the saw sit for an hour (used a different saw) and restarted it did idle then but kind of rough. I took the saw home cleaned it up the spark plug recently replaced was a gray/ white color! I called the dealer he said to run the low idle screw in and back to original position a couple times and try it again. I'm concerned about an air leak somewhere and don't want to trash a piston. I really like this saw!! Anyone else had any problems with their Dolmar.