Drive Chain Slack - Yamaha YFM25RX Owner's Manual

EBU26861

Drive chain slack

The drive chain slack should be checked before
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each ride and adjusted if necessary.
2
To check the drive chain slack
3 1. Place the ATV on a level surface.
NOTE:
4
When checking and adjusting the drive chain
slack, there should be no weight on the ATV and
5
all tires must be touching the ground.
6
2. Move the ATV back and forth to locate the
tightest portion of the drive chain, and then
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measure the drive chain slack as shown.
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Drive chain slack:
45.0–55.0 mm (1.77–2.17 in)
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10
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1. Drive chain slack
3. If the drive chain slack is incorrect, adjust it as
follows.
To adjust the drive chain slack
1. Loosen the rear axle pinch bolts.
2. Insert a rod of a diameter of 8 mm (0.3 in) and
a length of 10 cm (4 in) into one of the holes in
the drive chain tensioner as shown.
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