why does toro lawnmower engine make popping noise?


Posted August 24th, 2009 by admin 2 Comments »
lawnmower
hopaloong asked:


Recently replaced flywheel key and spark plug on 6.5 hp the engine starts and runs fine except for it sounds like it has a misfire and makes a popping noise I didn’t gap the spark plug cause don’t know what it should be any suggestions?