Yamaha YFM25RY Automobile User Manual


 
CHASSIS
3-22
ECA4D3F005
Excessive chain slack will overload the
engine and other vital parts; keep the slack
within the specified limits.
e. If the chain slack cannot be adjusted,
replace the sprockets and drive chain as a
set.
f. Tighten the rear axle pinch bolts.
TIP
Tighten the rear axle pinch bolts in the
proper sequence as shown.
The chain should be cleaned and lubricated
after every use of the vehicle.
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EAS21440
LUBRICATING THE DRIVE CHAIN
The drive chain consists of many interacting
parts. If the drive chain is not maintained prop-
erly, it will wear out quickly. Therefore, the drive
chain should be serviced, especially when the
vehicle is used in dusty areas.
This vehicle has a drive chain with small rub-
ber O-rings between each side plate. Steam
cleaning, high-pressure washing, certain sol-
vents, and the use of a coarse brush can dam-
age these O-rings. Therefore, use only
kerosene to clean the drive chain. Wipe the
drive chain dry and thoroughly lubricate it with
engine oil or chain lubricant that is suitable for
O-ring chains. Do not use any other lubricants
on the drive chain since they may contain sol-
vents that could damage the O-rings.
EAS29280
CHECKING THE STEERING SYSTEM
1. Place the vehicle on a level surface.
2. Check:
Steering assembly bushings
Move the handlebar up and down, and
back and forth.
Excessive play Replace the steering
stem bushings.
3. Check:
Tie-rod ends “1”
Free play Replace the tie-rod end.
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a. Turn the handlebar left until it stops.
b. Move the handlebar slightly to the right and
left.
c. Check for play in the tie-rod ends.
d. Turn the handlebar right until it stops.
e. Move the handlebar slightly to the left and
right.
f. Check for play in the tie-rod ends.
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Rear axle pinch bolt
21 Nm (2.1 m·kg, 15 ft·lb)
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains