Yamaha FZ8-NA, Service Manual

Page: 260 / 610

CHAIN DRIVE
4-93
ECA39P1403
• This vehicle has a drive chain with small
rubber O-rings “1” between the drive
chain side plates. Never use high-pres-
sure 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 internals, 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.
• Do not soak the drive chain in kerosene
for more than ten minutes, otherwise the
O-rings can be damaged.
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4. Check:
• O-rings “1”
Damage
→
Replace the drive chain.
• Drive chain rollers “2”
Damage/wear
→
Replace the drive
chain.
• Drive chain side plates “3”
Damage/wear/cracks
→
Replace the
drive chain.
5. Lubricate:
• Drive chain
EAS23460
CHECKING THE DRIVE SPROCKET
1. Check:
• Drive sprocket
More than 1/4 tooth “a” wear
→
Replace
the drive chain sprockets as a set.
Bent teeth
→
Replace the drive chain
sprockets as a set.
EAS23470
CHECKING THE REAR WHEEL SPROCKET
Refer to “CHECKING AND REPLACING THE
REAR WHEEL SPROCKET” on page 4-25.
EAS23480
CHECKING THE REAR WHEEL DRIVE HUB
Refer to “CHECKING THE REAR WHEEL
DRIVE HUB” on page 4-24.
Recommended lubricant
Chain lubricant suitable for O-
ring chains
b. Correct
1. Drive chain roller
2. Drive sprocket