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2001 Polaris Scrambler 400 - Flywheel bolt keeps coming loose

940 views 0 replies 1 participant last post by  Polaristwostroke 
#1 · (Edited)
Hi, I recently rebuilt the bottom end of my 2001 Polaris scramble and it’s been running fine until I heard this godawful clacking, rattling sound. I heard it the loudest starting up and idling but once I gave it throttle it went away. When I took off the pull cord cover, the flywheel bolt was nearly off! I had torqued down to spec when I put it on but it somehow rattled off. Once I tightened it down again (using a impact wrench, I know, not the best idea) after I did that it went away completely until 1 week later when the sound came back! I am considering buying a lock nut of that size or using some lock tite. This bike has been a hassle to get running and I’m so close!
 
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