2015 YAMAHA GRIZZLY 450 brake

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EBU30345Adjusting the rear brake lever and
brake pedal free play, and the brake
pedal heightThe rear brake lever and brake pedal free play,
and the brake pedal height must be checked and,
if necessary, adjusted at the intervals specified in
the periodic maintenance and lubrication chart.
Adjusting the brake lever free play
The brake lever free play should measure 10.0 mm
(0.39 in). If the free play is incorrect, adjust it as fol-
lows.1. Loosen the locknut at the brake lever.1. No brake lever free play
1. Brake lever free play
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82. To increase the brake lever free play, turn the
brake lever free play adjusting bolt in direction
(a). To decrease the brake lever free play, turn
the adjusting bolt in direction (b). NOTICE:
Distance A must not measure more than
12.7 mm (0.50 in). If distance A exceeds
12.7 mm (0.50 in), the specified brake lever
free play cannot be obtained, therefore
proceed with the following steps.
[ECB01143]
TIPIf the specified brake lever free play could be ob-
tained as described above, skip steps 3-8. 3. Fully turn the adjusting bolt in direction (a) to loosen the brake cable.
4. Slide the rubber cover back.
5. Loosen the brake cable adjuster locknut.
6. To increase the brake lever free play, turn the brake lever free play adjusting nut in direction
(a). To decrease the brake lever free play, turn
1. Locknut
2. Distance A
3. Brake lever free play adjusting bolt
12
3
(a)
(b)
1. Rubber cover
2. Distance B
3. Brake cable adjuster locknut
4. Brake lever free play adjusting nut
1
2
3
4
(b)(a)
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8
the adjusting nut in direction (b).
NOTICE:
Make sure that distance B measures 22
mm (0.87 in) or less. If distance B reaches
22 mm (0.87 in), adjust the brake lever free
play at the brake lever again. If distance A
exceeds 12.7 mm (0.50 in), have a Yamaha
dealer check the vehicle.
[ECB01153]
7. Tighten the brake cable adjuster locknut.
8. Slide the rubber cover to its original position.
9. Tighten the locknut at the brake lever.
Adjusting the brake pedal height
The top of the brake pedal should be positioned
75.0–85.0 mm (2.95–3.35 in) above the footboard
bracket. If the brake pedal height is incorrect, ad-
just it as follows. 1. Remove the footboard by removing the bolts
and nuts.
1. Distance between brake pedal and footboard bracket1
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82. Loosen the locknut. 3. Turn the adjusting bolt in or out until the brake
pedal height is within the specified limits.
4. Tighten the locknut.
5. Install the footboard by installing the bolts and nuts, and then tighten them to the speci-
fied torques.
1. Footboard
2. Bolt and nut
3. Bolt22
31
1. Locknut
2. Adjusting boltTightening torque:Locknut:7 Nm (0.7 m·kgf, 5.1 ft·lbf)
21
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TIPTighten the footboard bolts in the order shown.
Adjusting the brake pedal free play
The brake pedal free play should measure 20.0
mm (0.79 in). If the free play is incorrect, adjust it
as follows.
1. Footboard bolt A
2. Footboard bolt B112
Tightening torques:Footboard bolt A:4.0 Nm (0.40 m·kgf, 2.9 ft·lbf)
Footboard bolt B: 7 Nm (0.7 m·kgf, 5.1 ft·lbf)656
656
2
4
3
1
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TIPThe brake lever free play and brake pedal height
must be adjusted before adjusting the brake pedal
free play. 1. Loosen the locknut.2. To increase the brake pedal free play, turn the
brake pedal free play adjusting nut in direc-
tion (a). To decrease the brake pedal free
play, turn the adjusting nut in direction (b).
3. Tighten the locknut.
EBU24231Axle bootsThe axle boots must be checked for damage at
the intervals specified in the periodic maintenance
and lubrication chart. Check the axle boots for
tears or damage. If any damage is found, have
them replaced by a Yamaha dealer.
1. Brake pedal free play
1. Locknut
2. Brake pedal free play adjusting nut
21
(a)
(b)
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EBU29882Brake light switchesThe brake light, which is activated by the brake
pedal and brake levers, should come on just be-
fore braking takes effect.
The rear 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.
Turn the rear brake light switch 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 adjusting nut in direction (b).
1. Front axle boot (each side)
1. Rear axle boot (each side)
1
1
1. Rear brake light switch
2. Rear brake light switch adjusting nut
1
2(b)
(a)
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EBU24905Checking and lubricating the cablesThe operation and the condition of all control ca-
bles should be checked before each ride, and the
cables and cable ends should be lubricated if nec-
essary. If a cable is damaged or does not move
smoothly, have a Yamaha dealer check or replace
it.
WARNING
EWB02582Inspect cables frequently and replace if
damaged. Corrosion can result when the ca-
ble sheaths become damaged, and cables
can also become frayed or kinked, which
could restrict the operation of controls and
lead to an accident or injury.
 Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do not work smoothly, you could be unable
to control the ATV, which could lead to an
accident or collision.
EBU28712Checking and lubricating the front and
rear brake leversThe operation of the front and rear brake levers
should be checked before each ride, and the lever
pivots should be lubricated if necessary.
Recommended lubricant:
Yamaha cable lubricant or other suitable cable lubricantRecommended lubricants: Front brake lever:Silicone grease
Rear brake lever: Lithium-soap-based grease
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