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8-45
8
Insufficient brake fluid may allow air to enter
the brake system, reducing braking perfor-
mance.
Clean the filler cap before removing. Use
only DOT 4 brake fluid from a sealed contain-
er.
Use only the specified brake fluid; otherwise,
the rubber seals may deteriorate, causing
leakage.
Refill with the same type of brake fluid. Add-
ing a brake fluid other than DOT 4 may result
in a harmful chemical reaction.
Be careful that water does not enter the
brake fluid reservoir when refilling. Water will
significantly lower the boiling point of the flu-
id and may result in vapor lock.
NOTICEECB01161Brake fluid may damage painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately. As the brake pads wear, it is normal for the brake
fluid level to gradually go down. A low brake fluid
level may indicate worn brake pads and/or brake
system leakage; therefore, be sure to check the brake pads for wear and the brake system for
leakage. If the brake fluid level goes down sud-
denly, have a Yamaha dealer check the cause be-
fore further riding.
EBU24283Changing the brake fluidHave a Yamaha dealer change the brake fluid at
the intervals specified in the periodic maintenance
and lubrication chart. In addition, have the oil seals
of the brake master cylinder and calipers as well
as the brake hoses replaced at the intervals listed
below or whenever they are damaged or leaking.
Oil seals: Replace every two years.
Brake hoses: Replace every four years.EBU24395Checking the front brake lever free
playThe brake lever free play must be checked at the
intervals specified in the periodic maintenance
and lubrication chart. The brake lever should have
no free play as shown. If there is free play, have a
Yamaha dealer check the brake system.
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8
EBU34242Adjusting the rear brake lever and
brake pedal free playThe rear brake lever and brake pedal free play
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 6.0–7.0
mm (0.24–0.28 in). If the free play is incorrect, ad-
just it as follows.1. Loosen the locknut at the brake lever.1. No brake lever free play
1. Brake lever free play
1. Locknut
2. Brake lever free play adjusting bolt
1
(a)
(b)
12
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8-48
83. 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).
4. Tighten the locknut.
5. Install the panel.
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 adjusting nut
2. Locknut
2
(a)
(b)
1
1. Front axle boot (each side)
1
1
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8
Rear brake lever
EBU28833Checking and lubricating the brake
pedalThe operation of the brake pedal should be
checked before each ride, and the pedal pivot
should be lubricated if necessary.TIPTo access the brake pedal pivot, remove panel G.
(See page 8-10.)
EBU24964Checking the wheel hub bearingsThe front and rear wheel hub bearings must be
checked at the intervals specified in the periodic
maintenance and lubrication chart. If there is play
in a wheel hub or if a wheel does not turn smooth-
ly, have a Yamaha dealer check the wheel hub
bearings.
Recommended lubricant: Lithium-soap-based grease
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8
EBU25023Checking the stabilizer bushesThe stabilizer bushes must be checked for cracks
or damage at the intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer replace the stabilizer bush-
es if necessary.
EBU25053Lubricating the rear knuckle pivotsThe rear knuckle pivots must be lubricated at the
intervals specified in the periodic maintenance
and lubrication chart.TIPFor parts equipped with a grease nipple, use a
grease gun. Recommended lubricant:Lithium-soap-based grease
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8
EBU25094Lubricating the steering shaftThe steering shaft must be lubricated by a
Yamaha dealer at the intervals specified in the pe- riodic maintenance and lubrication chart.TIPFor parts equipped with a grease nipple, use a
grease gun.
YFM70KDXG / YFM70KDHG
YFM70KPXG / YFM70KPHG / YFM70KPSG
1. Grease nippleRecommended lubricant: Lithium-soap-based grease
1
1
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12
Horn switch .................................................................. 4-10IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-2
Instruments, lights and switches ................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................. 4-10
Low-range indicator light (YFM70KPXG / YFM70KPHG / YFM70KPSG) ...................................... 4-3MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................ 8-5
Maintenance chart, emission control system ................ 8-3
Model label .................................................................. 11-1
Multi-function display (YFM70KPXG / YFM70KPHG / YFM70KPSG) .............................................................. 4-6NNeutral indicator light ..................................................... 4-3OOn-Command differential gear lock switch
(YFM70KPSG) ........................................................... 4-12
On-Command four-wheel-drive switch (YFM70KPSG) ........................................................... 4-11
Override switch (YFM70KPSG) .................................... 4-10
Owner’s manual and tool kit .......................................... 8-2PPanels, removing and installing ................................... 8-10
Park indicator light ......................................................... 4-3
Parking ........................................................................... 6-5
Parking on a slope ......................................................... 6-5 Part locations ................................................................. 3-1
RRear brake, adjusting the lever, pedal free play .......... 8-46
Rear knuckle pivots, lubricating .................................. 8-52
Reverse indicator light ................................................... 4-3
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-20
Shock absorber assemblies, adjusting the front and
rear (YFM70KPXG / YFM70KPHG / YFM70KPSG) ... 4-23
Spark arrester, cleaning ............................................... 8-40
Spark plug, checking ................................................... 8-18
Specifications .............................................................. 10-1
Speed limiter ................................................................ 4-16
Stabilizer bushes, checking .......... ............................... 8-52
Starting the engine ........................................................ 6-1
Start switch .................................................................. 4-10
Steering shaft, lubricating ............................................ 8-53
Storage .......................................................................... 9-2
Storage compartment .................................................. 4-21TTail/brake light bulb, replacing .................................... 8-63
Throttle lever ......................................................... 4-16, 5-4
Throttle lever free play, adjusting ................................ 8-42
Tires ............................................................................... 5-4
Trailer hitch (YFM70KPXG / YFM70KPHG / YFM70KPSG) ............................................................ 4-24
Troubleshooting ........................................................... 8-66
Troubleshooting charts ................................................ 8-67
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