MTD 6 speed 13.5 HP 344CC Briggs and Stratton OHV
Well, as my title says, got my first complete rebuild finished. New piston, honed out cylinder, finally figured out the throttle plate, now on to my question.
While in idle, and idle ONLY, it backfires some. Now, my flywheel key did shear as I did not tighten down the flywheel enough, and just engaging the blades sheared it. So I realigned the broken key(looks exact, but may be off) and I know my intake and exhaust valves are aligned properly, and while driving, and cutting, it seems to be fine, however when I engage the clutch it starts to back fire some.... Any ideas? Thanks