chain goes from tight too loose...

[zul8r]

Ive got an 88 warrior, recently the chain has been givin my problems.. it jumps off when im ridin... i put it back on and then get it tight with the tensioner.. then it will do it again..

 

[tyler]

The same thing was happening on another fourwheeler i had, turned out to be the swing arm bushings/bearings.

 

[beastlywarrior228]

i had a problem with the lower bolt loosening up and that happening

 

[tyler]

If your swing arm bearings are really bad it could be causing the whole swing arm to move therefor causing the front and rear sprockets to come out of line and the chain slipping off.