2006 YAMAHA WOLVERINE 450 maintenance

8-40
8
EBU26491Adjusting the rear brake lever free play
and checking the brake pedal position The brake lever free play must be adjusted and
brake pedal position must be checked and, if nec-
essary, adjusted at the intervals specified in the
periodic maintenance and lubrication chart.NOTE:
Always perform this maintenance completely in
the following order whenever adjusting the rear
brake.
Before adjusting the brake lever free play and
checking the brake pedal position, check therear brake pads for wear.
Adjusting the brake lever free play
The brake lever free play should measure 0.5–2.0
mm (0.02–0.08 in) as shown. If the free play is in-
correct, adjust it as follows.1. Loosen the locknut.
2. Turn the brake lever free play adjusting bolt in
direction (a) to increase the free play, and in
direction (b) to decrease it.
1. Brake lever free play
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8

Make sure the brakes are not spongy. All air
must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These proceduresshould be performed by a Yamaha dealer.EBU24230Axle boots The 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 re-
placed by a Yamaha dealer.
EBU24750Brake 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.
1. Remove panel A. (See page 8-8.)NOTE:The brake light switch is properly adjusted when
the brake light comes on just before braking takeseffect.
2. 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 direc-
tion (a). To make the brake light come on lat-
er, turn the adjusting nut in direction (b).
3. Install the panel.
1. Axle boot (each side)U3C260E0.book Page 42 Tuesday, August 2, 2005 9:52 AM

8-44
8
EBU24950Checking and lubricating the brake
pedal The operation of the brake pedal should be
checked before each ride, and the pedal pivot
should be lubricated if necessary.NOTE:To access the brake pedal pivot, remove panel A.(See page 8-8.)
EBU24960Checking the wheel bearings The front and rear wheel bearings must be
checked at the intervals specified in the periodic
maintenance and lubrication chart. If there is play
in the wheel hub or if the wheel does not turn
smoothly, have a Yamaha dealer check the wheel
bearings.EBU24980Lubricating the drive shaft universal
joint The drive shaft universal joint must be lubricated at
the intervals specified in the periodic maintenance
and lubrication chart. Recommended lubricant:
Lithium-soap-based grease (all-purpose
grease)
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8
EBU25060Lubricating the knuckle pivots The knuckle pivots must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.EBU25080Lubricating the knuckle shafts The knuckle shafts must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.EBU25100Lubricating the steering shaft The steering shaft must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.
EBU25221Battery This model is equipped with a sealed-type (MF)
battery, which does not require any maintenance.
There is no need to check the electrolyte or to add
distilled water. Check and, if necessary, tighten the
battery lead connections.CAUTION:ECB00620Never attempt to remove the battery cell seals,as this would permanently damage the battery.
WARNING
EWB02160Battery electrolyte is poisonous and danger-
ous, as it contains sulfuric acid, which can
cause severe burns. Avoid contact with skin,
eyes or clothing. Always shield your eyes
when working near batteries.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg
or vegetable oil. Call a physician immediately. Recommended lubricant:
Lithium-soap-based grease
Recommended lubricant:
Lithium-soap-based grease
Recommended lubricant:
Lithium-soap-based greaseRecommended lubricant:
Lithium-soap-based grease
U3C260E0.book Page 45 Tuesday, August 2, 2005 9:52 AM

KKey identification number ............................................. 11-1
Knuckle pivots, lubricating ........................................... 8-45
Knuckle shafts, lubricating ........................................... 8-45LLabel locations ............................................................... 2-1
Light switch .................................................................... 4-4MMain switch .................................................................... 4-1
Model label ................................................................... 11-2NNeutral indicator light ..................................................... 4-2OOn-Command four-wheel-drive switch ........................... 4-5
Owner’s manual and tool kit ........................................... 8-1PPark indicator light ......................................................... 4-3
Parking ........................................................................... 6-5
Parking on a slope ......................................................... 6-6
Part locations ................................................................. 3-1
Periodic maintenance and lubrication chart ................... 8-3
Pre-operation check list ................................................. 5-1RReverse indicator light ................................................... 4-2
RIDING YOUR ATV ....................................................... 7-1SSafety information .......................................................... 1-1
Seat .............................................................................. 4-12
Shock absorber assemblies, adjusting the front .......... 4-14
Shock absorber assembly, adjusting the rear .............. 4-15
Spark plug, checking .................................................... 8-14Specifications ............................................................... 10-1
Speed limiter .................................................................. 4-6
Speedometer unit .......................................................... 4-3
Starter (choke) ............................................................. 4-11
Start switch .................................................................... 4-4
Steering shaft, lubricating ............................................ 8-45
Storage .......................................................................... 9-2
Storage compartment .................................................. 4-13
TTail/brake light bulb, replacing ..................................... 8-51
Throttle cable free play, adjusting ................................ 8-35
Throttle lever ........................................................... 4-6, 5-5
Tire pressure, measuring ............................................... 5-6
Tires ............................................................................... 5-5
Tire wear limit ................................................................ 5-7
Troubleshooting ........................................................... 8-53
Troubleshooting charts ................................................ 8-54VValve clearance ........................................................... 8-35
V-belt case drain plug .................................................. 8-33
V-belt cooling duct check hose .................................... 8-32
Vehicle identification number ....................................... 11-1WWheel bearings, checking ............................................ 8-44
Wheel, installing ........................................................... 8-52
Wheel, removing .......................................................... 8-51
U3C260E0.book Page 2 Tuesday, August 2, 2005 9:52 AM