benny3411
ArboristSite Operative
Im having problems with a ms440 after a complete rebuild. new oem bearings an seals, all oem gaskets, new nwp crankshaft, new oem cylinder kit-thanks to lwhaples, oem piston bearing, new oem tank vent, oem fuel line, oem impulse line, new gas oil caps, i rebuilt the original zama carb, dual port muffler, new spark plug, oil line, all new rubbers everywhere, new intake, air filter. The saw will start right up, sounds fine, and then just dies. Ive tried richening it up a bit and it seemed to allow it run longer, but something aint right. Ive tried loosening the gas cap and it didnt seem to help any. I need to try a different carb, and coil. Ive search up an down with a flashlight and cant see any leaks anywhere on the saw. Could a air- vaccum leak cause this?