Yamaha YZF-R1S Service Manual page 221

SWINGARM AND DRIVE CHAIN
2. Check:
S drive chain
Stiffness ! Clean and lubricate or replace.
3. Clean:
S drive chain
a. Wipe the drive chain with a clean cloth.
b. Put the drive chain in kerosene and remove
any remaining dirt.
c. Remove the drive chain from the kerosene
and completely dry it.
CAUTION:
This motorcycle has a drive chain with small
rubber O-rings 1 between the drive chain
side plates. Never use high-pressure water
or air, steam, gasoline, certain solvents
(e.g., benzine), or a coarse brush to clean the
drive chain. High-pressure methods could
force dirt or water into the drive chain's in-
ternals, and solvents will deteriorate the O-
rings. A coarse brush can also damage the
O-rings. Therefore, use only kerosene to
clean the drive chain. Don't soak drive chain
in kerosine more them ten minutes. O-ring is
damage by kerosine.
4. Check:
S O-rings 1
Damage ! Replace the drive chain.
S drive chain rollers 2
Damage/wear ! Replace the drive chain.
S drive chain side plates 3
Damage/wear ! Replace the drive chain.
Cracks ! Replace the drive chain and make
sure the battery breather hose is properly
routed away from the drive chain and below
the swingarm.
5. Lubricate:
S drive chain
4-74
CHAS
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains