2011 YAMAHA YFM250R-W torque

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EBU24710Adjusting the parking brake free play The parking brake free play must be checked and,
if necessary, adjusted at the intervals specified in
the periodic maintenance and lubrication chart.
Cable length “A” should measure 64–68 mm
(2.52–2.68 in). Adjust the parking brake free play
as follows.
1. Release the parking brake by moving the
parking brake lever to the right.
2. Fully loosen the locknut and the adjusting bolt
at the rear brake caliper.
3. Loosen the locknut on the brake cable.4. Turn the adjusting nut on the brake cable in di-
rection (a) to increase the cable length, and in
direction (b) to decrease it.
TIPIf the cable length cannot be adjusted to specifica-tion, consult a Yamaha dealer.
5. Tighten the locknut on the brake cable.
6. Turn in the adjusting bolt at the rear brake cal-
iper until it feels tight, then turn it out 1/8 turn
and tighten its locknut to the specified torque.
1. Adjusting bolt
2. Cable length “A”
3. Locknut
2
1 3
1. Locknut
2. Adjusting nut
2
1
(a)(b)
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8
NOTICEECB00520When tightening the locknut, hold the adjust-
ing bolt with a wrench so that it does not turntogether with the locknut.
WARNING
EWB02090Operating with improperly serviced or adjust-
ed brakes could cause the brakes to malfunc-
tion, resulting in reduced braking
performance. This could increase the chance
of a collision or accident. After adjusting the
parking brake free play, block the rear of the
ATV off the ground and spin the rear wheels.
Check to make sure there is no brake drag. If
brake drag is noticed, perform the adjustmentagain.
EBU24740Brake light switches The operation of the brake light switches must be
checked and, if necessary, adjusted at the inter-
vals specified in the periodic maintenance and lu-
brication chart.
The brake light switch for the brake pedal can be
adjusted as follows, but the other brake light
switches should be adjusted by a Yamaha dealer.TIPThe brake light switch is properly adjusted when
the brake light comes on just before braking takeseffect.
Turn the adjusting nut while holding the brake light
switch in place. To make the brake light come on
earlier, turn the adjusting nut in direction (a). To
make the brake light come on later, turn the adjust-
ing nut in direction (b). Tightening torque:
Locknut (rear brake caliper):
16 Nm (1.6 m·kgf, 11 ft·lbf)
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8
TIPA rod can be obtained at a Yamaha dealer to makethis adjustment.
4. Shift the transmission into neutral.
5. To tighten the drive chain, push the ATV back-
ward. To loosen the drive chain, push the ATV
forward.
NOTICEECB00541Improper drive chain slack will overload the en-
gine as well as other vital parts of the ATV and
can lead to drive chain slippage or breakage.
To prevent this from occurring, keep the drivechain slack within the specified limits.
6. Pull the rod out, and then tighten the rear axle
pinch bolts to the specified torque in the order
shown.
1. Rear wheel axle pinch bolt
2. Rod
3. Drive chain tensioner
4. Hole
4 3
2
11
Tightening torque:
Rear axle pinch bolt:
21 Nm (2.1 m·kgf, 15.2 ft·lbf)
12
5634
78
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8 7. Check that the clearance between the speed
sensor and the speed sensor rotor is 3–5 mm
(0.12–0.19 in). If the clearance is out of spec-
ification, adjust the speed sensor position as
follows.
TIPThis specified clearance is necessary for thespeedometer to indicate an accurate reading.
8. Loosen the speed sensor bracket bolt.9. Adjust the position of the speed sensor so that
the clearance between the sensor and the
speed sensor rotor is 3–5 mm (0.12–0.19 in).
10. Tighten the bolt to the specified torque.
EBU24880Lubricating the drive chain The drive chain must be cleaned and lubricated at
the intervals specified in the periodic maintenance
and lubrication chart, otherwise it will quickly wear
out, especially when riding in dusty or wet areas.
Service the drive chain as follows.
1. Speed sensor rotor
2. Speed sensor
3. Speed sensor bracket bolt
4. Clearance
3 2
4
1
Tightening torque:
Speed sensor bracket bolt:
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
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8Rear
3. Elevate the ATV and place a suitable stand
under the frame.
4. Remove the nuts from the wheel.
5. Remove the wheel.
EBU27481Installing a wheel 1. Place the ATV on a level surface.
2. Install the wheel and the nuts.TIPWhen installing the wheel, make sure its arrow
mark points toward the rotating direction of thewheel.3. Lower the ATV to the ground.
4. Tighten the wheel nuts to the specified
torques.1. Nut
1. Arrow markTightening torques:
Fro nt wh ee l nu t:
45 Nm (4.5 m·kgf, 32 ft·lbf)
Rear wheel nut:
45 Nm (4.5 m·kgf, 32 ft·lbf)
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