Removing The Drive Sprocket; Checking The Drive Sprocket; Checking The Rear Wheel Sprocket; Checking The Rear Wheel Drive Hub - Yamaha MT-03 Service Manual

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 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:
• Drive chain
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains

REMOVING THE DRIVE SPROCKET

NOTE:
Loosen the drive sprocket nut before removing
the rear wheel.
1. Remove:
• Drive sprocket cover
• Drive chain guard
2. Straighten the lock washer tab "a"
3. Remove:
• Drive sprocket nut "1"
• Lock washer "2"
• Drive sprocket "3"
1
EAS23460

CHECKING THE DRIVE SPROCKET

1. Check:
• Drive sprocket
More than 1/4 tooth "a" wear
drive chain sprockets as a set.
Bent teeth
ets as a set.
b. Correct
1. Drive chain roller
2. Drive chain sprocket
EAS23470

CHECKING THE REAR WHEEL SPROCKET

Refer to "CHECKING AND REPLACING THE
REAR WHEEL SPROCKET" on page 4-16.
EAS23480

CHECKING THE REAR WHEEL DRIVE HUB

Refer to "CHECKING THE REAR WHEEL DRI-
VE HUB" on page 4-15.
EAS28800

INSTALLING THE DRIVE CHAIN

1. Lubricate:
• Drive chain
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
4-69
CHAIN DRIVE
2
3
a
Replace the
Replace the drive chain sprock-