2012 yt3000 Craftsman backfire but won't start

jbell19

Forum Newbie
Joined
Feb 11, 2023
Threads
1
Messages
7
Correct flywheel and key installed but with the same results, think it's time to shop for a new mower
My mistake, key had sheared added lock washer to flywheel bolt and tightened nut to specs and she fired
 

bertsmobile1

Lawn Royalty
Joined
Nov 29, 2014
Threads
65
Messages
24,995
It will shear again
You need to remove the flywheel and lap the flywheel to the crankshaft with some extra fine valve grinding paste
Check for any lips or burrs before you start & file them off .
 

StarTech

Lawn Royalty
Top Poster Of Month
Joined
Feb 19, 2020
Threads
93
Messages
11,589
or get a second set eyes on the problem.
 
Top