Checking The Drive Sprocket; Installing The Drive Chain - Yamaha XT250X 2008 Service Manual

b. Put the drive chain in kerosene and remove
any remaining dirt.
c. Remove the drive chain from the kerosene
and completely dry it.
EC3C51003
CAUTION:
This vehicle has a drive chain with small rub-
ber O-rings "1" between the drive chain side
plates. Steam cleaning, high-pressure wash-
ing, certain solvents, and the use of a coarse
brush can damage these O-rings.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
4. Check:
O-rings "1"
G
Damage → Replace the drive chain.
Drive chain rollers "2"
G
Damage/wear → Replace the drive chain.
Drive chain side plates "3"
G
Damage/wear → Replace the drive chain.
Cracks → Replace the drive chain.
All manuals and user guides at all-guides.com
4-59
5. Lubricate:
Drive chain
G
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
EAS23460

CHECKING THE DRIVE SPROCKET

1. Check:
Drive sprocket
G
Refer to "CHECKING AND REPLACING
THE REAR WHEEL SPROCKET" on page
4-10.
EAS23490

INSTALLING THE DRIVE CHAIN

1. Lubricate:
Drive chain
G
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
2. Install:
Drive chain
G
Drive sprocket "1"
G
Lock washer "2"
New
G
Drive sprocket nut "3"
G
(temporarily)
NOTE:
While applying the drive sprocket, tighten the
drive sprocket nut.
1
New
2
3
3. Install:
Swingarm
G
Refer to "SWINGARM" on page 4-54.
Rear wheel
G
Refer to "REAR WHEEL" on page 4-8.
4. Install:
Lock washer "1"
G
Drive sprocket "2"
G
Drive sprocket nut
110 Nm (11.0 m•kg, 80 ft•lb)
CHAIN DRIVE