I have an eleven year old MS170, which has been a great saw until recently. Upon starting from cold it ran but seemed to loose power when cutting. Since then all I have done to fix it, has not helped, and now doesn't want to start at all.
I have installed new spark plug, new gas line and filter, new carb kit (all but remove and replace welch plugs. Wasn't sure how to seal them back in). Cleaned muffler and spark arrester screen, Removed flywheel, and ensured that keyway was still intact. (spark will jump 3/16" gap on old plug). checked the duckbill thingy in the gas tank. Put fresh hi-test gas and Stihl oil in tank. I even bought a new carb online (from China of course) and it did the same thing.
It has good compression, although I don't have a gauge, but feels the same when pulling it over. Any help would be appreciated.
TonyC
I have installed new spark plug, new gas line and filter, new carb kit (all but remove and replace welch plugs. Wasn't sure how to seal them back in). Cleaned muffler and spark arrester screen, Removed flywheel, and ensured that keyway was still intact. (spark will jump 3/16" gap on old plug). checked the duckbill thingy in the gas tank. Put fresh hi-test gas and Stihl oil in tank. I even bought a new carb online (from China of course) and it did the same thing.
It has good compression, although I don't have a gauge, but feels the same when pulling it over. Any help would be appreciated.
TonyC
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