Yamaha YZFR1W 2007 Service Manual page 196

ECA14300
CAUTION:
Never install a new drive chain onto worn
drive chain sprockets; this will dramatically
shorten the drive chain's life.
3. Adjust:
• Drive chain slack
Refer to "ADJUSTING THE DRIVE CHAIN
SLACK" on page 3-26
Drive chain slack
30.0–40.0 mm (1.18–1.57 in)
ECA13550
CAUTION:
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 accident. Therefore,
keep the drive chain slack within the speci-
fied limits.
4-74
CHAIN DRIVE