Briggs 6.5 hp knocks 3 or 4 times on start up, then sounds and runs fine

mystic240

Member
Joined
Jun 24, 2016
Messages
19
Daughters mower. Can not figure this out. Flywheel key ok, blade key good. Has oil in crankcase. I removed the bottom crankcase and checked the rod, it is tight and good. No play in the main brgs. What am I missing?
 
Try with the blade off. Also if you can record a video of it starting and running might help others diagnose the problem.
 
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