Yamaha 2009 YFM25RY Service Manual page 101

CHAIN DRIVE .............................................................................................4-57
REMOVING THE DRIVE CHAIN ..........................................................4-58
CHECKING THE DRIVE CHAIN ..........................................................4-58
CHECKING THE DRIVE SPROCKET ..................................................4-59
CHECKING THE REAR WHEEL SPROCKET .....................................4-59
CHECKING THE SPROCKET BRACKET ............................................4-59
INSTALLING THE DRIVE CHAIN .........................................................4-59