Yamaha WR250F 2003 [90/304] Insp adj

3 - 32

INSP

ADJ

DRIVE CHAIN SLACK ADJUSTMENT

5. Install:

● Drive chain 1

● Joint 2

● Master link clip 3

CAUTION:

Be sure to install the master link clip to the

direction as shown.

a Turning direction

6. Lubricate:

● Drive chain

Drive chain lubricant:

SAE 10W-30 motor oil or suit-

able chain lubricants

DRIVE CHAIN SLACK ADJUSTMENT

1. Elevate the rear wheel by placing the

suitable stand under the engine.

2. Check:

● Drive chain slack a

Above the seal guard installation bolt.

Out of specification → Adjust.

NOTE:

Before checking and/or adjusting, rotate the

rear wheel through several revolutions and

check the slack several times to find the tight-

est point. Check and/or adjust the drive chain

slack with the rear wheel in this “tight chain”

position.

Drive chain slack:

40 ~ 50 mm (1.6 ~ 2.0 in)