Instruments, lights and switches ................ 5-7
OPERATION ................................................... 6-1 Starting the engine ...................................... 6-1
Operating the drive select lever and driving in reverse ....................................... 6-2
Engine break-in ........................................... 6-4
Parking ........................................................ 6-5
Parking on a slope ...................................... 6-5
Accessories and loading ............................. 6-6
RIDING YOUR ATV ........................................ 7-1 GETTING TO KNOW YOUR ATV ................ 7-2
RIDE WITH CARE AND GOOD JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............... 7-9
TURNING YOUR ATV................................ 7-12
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL .................................. 7-16
CROSSING A SLOPE................................ 7-17
CROSSING THROUGH SHALLOW WATER .................................................... 7-18
RIDING OVER ROUGH TERRAIN ............. 7-20
SLIDING AND SKIDDING .......................... 7-21
WHAT TO DO IF... ..................................... 7-22
WHAT TO DO... ......................................... 7-22 PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-2
Periodic maintenance chart for the emission control system ........................... 8-3
General maintenance and lubrication chart.......................................................... 8-5
Removing and installing panels ................ 8-10
Checking the spark plug........................... 8-18
Engine oil and oil filter cartridge ............... 8-21
Final gear oil ............................................. 8-25
Differential gear oil .................................... 8-28
Coolant ..................................................... 8-30
Cleaning the air filter element ................... 8-37
Cleaning the spark arrester ...................... 8-40
V-belt case drain plug............................... 8-41
Adjusting the throttle lever free play ......... 8-42
Valve clearance......................................... 8-42
Adjusting the drive select lever safety system cable .......................................... 8-43
Brakes....................................................... 8-43
Checking the front brake pads and rear brake friction plates ................................ 8-43
Checking the brake fluid level .................. 8-44
Changing the brake fluid .......................... 8-45
Checking the front brake lever free play... 8-45
UB1660E0.book Page 2 Thursday, February 26, 2015 4:01 PM
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8
EBU27468Engine oil and oil filter cartridgeThe engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter cartridge replaced at the intervals
specified in the periodic maintenance and lubrica-
tion chart.
To check the engine oil level1. Place the ATV on a level surface.
2. Check the engine oil level on a cold engine.TIPIf the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least 10 minutes until the oil set-
tles for an accurate reading. 3. Remove the access cover by turning it coun- terclockwise. 4. Remove the engine oil dipstick, and then
wipe it off with a clean rag.
1. Access cover
1. Engine oil dipstick
1
UB1660E0.book Page 21 Thursday, February 26, 2015 4:01 PM
8-25
8
11. Refill with the specified amount of the recom-
mended engine oil, and then insert the dip-
stick completely into the oil filler hole.
TIPBe sure to wipe off spilled oil on any parts after the
engine and exhaust system have cooled down. NOTICEECB00301In order to prevent clutch slippage (since the
engine oil also lubricates the clutch), do not
mix any chemical additives. Do not use oils
with a diesel specification of “CD” or oils of
a higher quality than specified. In addition,
do not use oils labeled “ENERGY CONSERV-
ING II” or higher.
Make sure that no foreign material enters the
crankcase.
12. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
13. Turn the engine off, wait at least ten minutes, and then check the oil level and correct it if
necessary.
14. Install the access cover by turning it clock- wise.EBU27307Final gear oilThe final gear case must be checked for oil leak-
age before each ride. If any leakage is found, have
a Yamaha dealer check and repair the ATV. In ad-
dition, the final gear oil level must be checked and
the oil changed as follows at the intervals speci-
fied in the periodic maintenance and lubrication
chart.
To check the final gear oil level1. Place the ATV on a level surface.
Recommended oil:
See page 10-1.
Oil quantity: Without oil filter cartridge replacement:2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter cartridge replacement: 2.10 L (2.22 US qt, 1.85 Imp.qt)
UB1660E0.book Page 25 Thursday, February 26, 2015 4:01 PM
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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.
UB1660E0.book Page 45 Thursday, February 26, 2015 4:01 PM
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12
INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-25
Air filter element, cleaning ............................................ 8-37
Axle boots .................................................................... 8-48BBattery .......................................................................... 8-54
Brake fluid, changing ...................................................8-45
Brake fluid level, checking ........................................... 8-44
Brake lever free play, checking the front ..................... 8-45
Brake lever, front .......................................................... 4-17
Brake levers, checking and lubricating ........................ 8-50
Brake light switches ..................................................... 8-49
Brake pads and friction plates, checking ..................... 8-43
Brake pedal and rear brake lever ................................. 4-17
Brake pedal, checking and lubricating ........................ 8-51
Brakes .......................................................................... 8-43
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-49
Carrier, front ................................................................. 4-23
Carrier, rear .................................................................. 4-23
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant ................................................................. 5-3, 8-30
Coolant temperature warning light ................................. 4-3DDifferential gear lock indicator (YFM70KPSG) ............... 4-5
Differential gear oil ............................................... 5-3, 8-28Drive lever (YFM70KDXG / YFM70KDHG /
YFM70KPXG / YFM70KPHG) .................................... 4-15
Drive select lever .......................................................... 4-18
Drive select lever and driving in reverse ........................ 6-2
Drive select lever safety system cable, adjusting ........ 8-43
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-21
Engine stop switch ......................................................... 4-9
Engine trouble warning light .......................................... 4-4
EPS warning light (for EPS model) ................................. 4-4FFinal gear oil ......................................................... 5-3, 8-25
Four-wheel-drive indicator light (YFM70KDXG / YFM70KDHG) .............................................................. 4-5
Four-wheel-drive indicator (YFM70KPXG / YFM70KPHG / YFM70KPSG) ...................................... 4-5
Fuel ...................................................................... 4-19, 5-3
Fuel level warning light (YFM70KDXG / YFM70KDHG) .............................................................. 4-4
Fuel tank cap ............................................................... 4-18
Fuses, replacing ........................................................... 8-57HHandlebar switches ....................................................... 4-9
Headlight beam, adjusting ........................................... 8-62
Headlight bulb, replacing ............................................. 8-59
High-range indicator light (YFM70KPXG / YFM70KPHG / YFM70KPSG) ...................................... 4-3
UB1660E0.book Page 1 Thursday, February 26, 2015 4:01 PM