ILENGINE Lawn Royalty Sep 25, 2014 #2 Most common reason for engine surging is dirty carb. Clean the carb and hopefully that fixes it.
M mechanic mark Lawn Pro Sep 26, 2014 #3 Engine RPM Seems to Fluctuate | Mower & Small Engine Repair | Briggs & Stratton FAQ "K&T Parts House Lawn Mower Parts and Chain Saw & Trimmer Parts" When posting include engine manufacturer, model & serial numbers as well as all numbers from engine, thanks.
Engine RPM Seems to Fluctuate | Mower & Small Engine Repair | Briggs & Stratton FAQ "K&T Parts House Lawn Mower Parts and Chain Saw & Trimmer Parts" When posting include engine manufacturer, model & serial numbers as well as all numbers from engine, thanks.