6-4
6
TIPWhen in reverse, the reverse indicator light
should come on. If the indicator light does not
come on, have a Yamaha dealer check the elec-
trical circuit.
Due to the synchronizing mechanism in the en-
gine, the indicator light may not come on until
the ATV starts moving. 4. Check behind for people or obstacles, and
then release the brake pedal.
5. Open the throttle lever gradually and continue to watch to the rear while backing.EBU20683Engine break-inTIPFor ATVs equipped with an odometer or an hour
meter, follow the figures given in km (mi) or the
figures given in hours.
For ATVs not equipped with an odometer or
hour meter, follow the figures given in hours.
There is never a more important period in the life
of your engine than the first 320 km (200 mi) or 20
hours of riding. For this reason, you should read
the following material carefully.
Since the engine is brand new, do not put an ex-
cessive load on it for the first 320 km (200 mi) or
20 hours. The various parts in the engine wear and
polish themselves to the correct operating clear-
ances. During this period, prolonged full-throttle
operation or any condition that might result in en-
gine overheating must be avoided.
0–160 km (0–100 mi) or 0–10 hours
Avoid prolonged operation above 1/2 throttle.
Vary the speed of the ATV regularly. Do not oper-
ate it at one set throttle position.
160–320 km (100–200 mi) or 10–20 hours
Avoid prolonged operation above 3/4 throttle. Rev
the engine freely, but do not use full throttle at any
time.
320 km (200 mi) or 20 hours and beyond
The ATV can now be operated normally.
UB1661E0.book Page 4 Thursday, May 12, 2016 2:47 PM
8-8
8
EBU28392TIPSome maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or
muddy areas, or at full-throttle.
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinder and calipers, and chan-
ge the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged. 23 *Moving parts and
cables • Lubricate.
√√√√
24 *Throttle lever • Check operation.
• Check throttle lever free play, and adjust if neces-
sary.
• Lubricate cable and lever housing. √√√√√
25 *Front and rear
brake switches • Check operation and correct if necessary.
√√√√√
26 *Lights and switches • Check operation and correct if necessary.
• Adjust headlight beams. √√√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev-
er comes first month136612
km (mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320UB1661E0.book Page 8 Thursday, May 12, 2016 2:47 PM
8-48
8
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.
EBU34270Brake 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 can be adjusted as fol-
lows, but the front brake light switch should be ad-
justed 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
1
1. Rear axle boot (each side)
1
1
UB1661E0.book Page 48 Thursday, May 12, 2016 2:47 PM
8-49
8
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
EWB02582Inspect 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.
1. Rear brake light switch adjusting nut
2. Rear brake light switchRecommended lubricant:
Yamaha cable lubricant or other suitable cable lubricant
1
2 (b)
(a)
UB1661E0.book Page 49 Thursday, May 12, 2016 2:47 PM
8-63
8
YFM70KPXH / YFM70KPHH / YFM70KPSH /
YFM70KPAH
EBU25614Replacing the tail/brake light bulbIf the tail/brake light bulb burns out, replace it as
follows.
1. Remove the tail/brake light bulb holder (to- gether with the bulb) by turning it counter-
clockwise. 2. Remove the burnt-out bulb by pushing it in
and turning it counterclockwise.1. Handlebar-mounted light beam adjusting screw
(b)
(a)
1
1. Tail/brake light bulb holder
1. Tail/brake light bulb
1
1
UB1661E0.book Page 63 Thursday, May 12, 2016 2:47 PM
10-4
10
Front wheel:Wheel type:Cast wheel (YFM70KPSH)
Panel wheel (YFM70KDXH, YFM70KPAH, YFM70KPHH,
YFM70KPXH)
Rim size: 12 x 6.0ATRear wheel:Wheel type:
Cast wheel (YFM70KPSH)
Panel wheel (YFM70KDXH, YFM70KPAH, YFM70KPHH,
YFM70KPXH)
Rim size: 12 x 7.5ATFront brake:Type:Disc brake
Operation: Right hand operation
Specified brake fluid:
DOT 4Rear brake:Type:Wet multiple disc brake
Operation:
Left hand and right foot operationFront suspension:Type:Double wishbone
Spring/shock absorber type:
Coil spring/oil damper Wheel travel:
193 mm (7.6 in)
Rear suspension:Type:
Double wishbone
Spring/shock absorber type: Coil spring/oil damper
Wheel travel: 232 mm (9.1 in)Electrical system:Ignition system:TCI
Charging system: AC magnetoBattery:Model:YTX20L-BS
Voltage, capacity: 12 V, 18.0 AhHeadlight(s):Bulb type:Krypton bulbHandlebar-mounted light:Bulb type:
Halogen bulb (YFM70KPAH, YFM70KPHH,
YFM70KPSH, YFM70KPXH)Bulb voltage, wattage × quantity:Headlight:
12 V, 30.0/30.0 W × 2
UB1661E0.book Page 4 Thursday, May 12, 2016 2:47 PM
10-5
10
Handlebar-mounted light:12 V, 35.0/36.5 W × 1 (YFM70KPAH, YFM70KPHH,
YFM70KPSH, YFM70KPXH)
Tail/brake light: 12 V, 5.0/21.0 W × 1
Meter lighting: EL (Electroluminescent) (YFM70KPAH, YFM70KPHH,
YFM70KPSH, YFM70KPXH)
Neutral indicator light: LED
Fuel level warning light:
LED (YFM70KDXH)
Reverse indicator light: LED
Coolant temperature warning light: LED
EPS warning light:
LED (YFM70KPAH, YFM70KPHH, YFM70KPSH,
YFM70KPXH)
Park indicator light:
LED
Four-wheel-drive indicator light: 12 V, 1.7 W × 1 (YFM70KDXH)
Four-wheel-drive indicator: LCD (YFM70KPAH, YFM70KPHH, YFM70KPXH)
Engine trouble warning light:
LED
High-range indicator light: LED (YFM70KPAH, YFM70KPHH, YFM70KPSH,
YFM70KPXH) Low-range indicator light:
LED (YFM70KPAH, YFM70KPHH, YFM70KPSH,
YFM70KPXH)
Differential gear lock indicator light: LED (YFM70KPSH)
Fuses:Main fuse:
40.0 A
Fuel injection system fuse: 15.0 A
EPS fuse: 40.0 A (YFM70KPAH, YFM70KPHH, YFM70KPSH,
YFM70KPXH)
Headlight fuse: 10.0 A (YFM70KDXH)
15.0 A (YFM70KPAH, YFM70KPHH, YFM70KPSH,
YFM70KPXH)
Signaling system fuse: 10.0 A
Ignition fuse: 10.0 A
Auxiliary DC jack fuse:
10.0 A
Four-wheel-drive motor fuse: 10.0 A (YFM70KPSH)
Radiator fan motor fuse: 20.0 A
UB1661E0.book Page 5 Thursday, May 12, 2016 2:47 PM
12-1
12
INDEX
AAccessories and loading ................................................ 6-5
Accessories, auxiliary jack ........................................... 4-26
Air filter element, cleaning ........................................... 8-37
Axle boots .................................................................... 8-48BBattery ......................................................................... 8-53
Brake fluid, changing ................................................... 8-45
Brake fluid level, checking ........................................... 8-44
Brake lever free play, checking the front ..................... 8-45
Brake lever, front ......................................................... 4-18
Brake levers, checking and lubricating ........................ 8-49
Brake light switches ..................................................... 8-48
Brake pads and friction plates, checking .................... 8-42
Brake pedal and rear brake lever ................................. 4-18
Brake pedal, checking and lubricating ........................ 8-50
Brakes .......................................................................... 8-42
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, 8-29
Coolant temperature warning light ................................ 4-3DDifferential gear lock indicator (YFM70KPSH) ............... 4-6
Differential gear oil ................................................5-3, 8-27Drive lever (YFM70KDXH / YFM70KPXH /
YFM70KPHH / YFM70KPAH) .................................... 4-15
Drive select lever ......................................................... 4-19
Drive select lever and driving in reverse ........................ 6-2
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-20
Engine stop switch ...................................................... 4-10
Engine trouble warning light .......................................... 4-4
EPS warning light (for EPS model) ................................ 4-5FFinal gear oil ......................................................... 5-3, 8-24
Four-wheel-drive indicator light (YFM70KDXH) ............. 4-5
Four-wheel-drive indicator (YFM70KPXH / YFM70KPHH / YFM70KPSH / YFM70KPAH) ............. 4-5
Fuel ....................................................................... 4-19, 5-3
Fuel level warning light (YFM70KDXH) .......................... 4-4
Fuel tank cap ............................................................... 4-19
Fuses, replacing .......................................................... 8-57HHandlebar switches ....................................................... 4-9
Headlight beam, adjusting ........................................... 8-62
Headlight bulb, replacing ............................................. 8-59
High-range indicator light (YFM70KPXH / YFM70KPHH / YFM70KPSH / YFM70KPAH) ............. 4-3
Horn switch .................................................................. 4-10IIdentification numbers ................................................. 11-1
UB1661E0.book Page 1 Thursday, May 12, 2016 2:47 PM