2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 95Get this manual

2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 95

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ADJUSTING THE DRIVE CHAIN SLACK
A drive chain that is too tight will overload the engine and other vital parts, and one that is too loose can skip and damage the swingarm or cause an accidentThe