Yamaha WR45OFR service manual Drive Chain Slack Adjustment, Drive chain slack 40 ~ 50 mm 1.6 ~ 2.0

DRIVE CHAIN SLACK ADJUSTMENT

INSP

ADJ

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.

Drive chain slack:

40 ~ 50 mm (1.6 ~ 2.0 in)

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 chain slack with the rear wheel in this “tight chain” position.

3.Adjust:

● Drive chain slack

Drive chain slack adjustment steps:

●Loosen the axle nut 1 and locknuts 2.

●Adjust the chain slack by turning the adjusters 3.

To tighten → Turn the adjuster 3 coun- terclockwise.

To loosen → Turn the adjuster 3 clock- wise and push wheel for- ward.

●Turn each adjuster exactly the same amount to maintain correct axle alignment. (There are marks a on each side of the chain puller alignment.)

NOTE:

Turn the adjuster so that the chain is in line with the sprocket, as viewed from the rear.

CAUTION:

Too small chain slack will overload the engine and other vital parts; keep the slack within the specified limits.

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