5-3
5
EBU38000FuelMake sure there is sufficient gasoline in the tank
before starting off. Refuel if necessary. (See page
4-19.)EBU19561Engine oilMake sure that the engine oil is at the specified
level. Add oil as necessary. (See page 8-20.)EBU19591Final gear oilMake sure that the final gear oil is at the specified
level. Add oil as necessary. (See page 8-25.)EBU19601Differential gear oilMake sure that the differential gear oil is at the
specified level. Add oil as necessary. (See page
8-27.)EBU19632CoolantMake sure that the coolant is at the specified level.
Add coolant as necessary. (See page 8-29.)
TIPThe coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture. EBU29083Front and rear brakesBrake levers and brake pedal
Check that there is no free play in the front and
rear brake levers. If there is free play, have a
Yamaha dealer check the brake system.
Check for correct free play in the brake pedal. If
the free play is incorrect, adjust it. (See page
8-47.)
Check the operation of the brake levers and
pedal. They should move smoothly and there
should be a firm feeling when the brakes are ap-
plied. If not, have a Yamaha dealer check the
brake system.
Brake fluid level
Check the brake fluid level. Add fluid if necessary.
(See page 8-44.)
UB4F60E0.book Page 3 Wednesday, April 25, 2018 11:52 AM
8-7
8
11*Shock absorber as-
semblies • Check operation and correct if necessary.
• Check for oil leakage and replace if necessary.
√√√
12 *Stabilizer bushes • Check for cracks or other damage, and replace if
necessary. √√√
13 *Rear knuckle pivots • Lubricate with lithium-soap-based grease. √√√
14 *Steering shaft • Lubricate with lithium-soap-based grease. √√√
15 *Steering system • Check operation and repair or replace if dam-
aged.
• Check toe-in and adjust if necessary. √√√√√
16 *Engine mount • Check for cracks or other damage, and replace if
necessary. √√√
17 *Axle boots • Check for cracks or other damage, and replace if
necessary. √√√√√
18 Engine oil • Change.
• Check ATV for oil leakage, and correct if neces-
sary. √ √√√
19 Engine oil filter car-
tridge • Replace.
√√√
20 Differential gear oil • Change.
• Check ATV for oil leakage, and correct if neces-
sary. √√
NO.
ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes first month136612
km (mi) 240
(150) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320UB4F60E0.book Page 7 Wednesday, April 25, 2018 11:52 AM
8-27
8
5. Refill with the recommended final gear oil to
the brim of the check hole as shown.
NOTICE: Be sure no foreign material en-
ters the final gear case.
[ECB00422]
6. Check the oil level check bolt gasket and the oil filler bolt gasket for damage, and replace
them if necessary.
7. Install the oil level check bolt, the oil filler bolt and their gasket, and then tighten the bolts to
the specified torques.
8. Check the final gear case for oil leakage. If oil is leaking, check for the cause.EBU23428Differential gear oilThe differential gear case must be checked for oil
leakage before each ride. If any leakage is found,
have a Yamaha dealer check and repair the ATV.
In addition, the differential gear oil level must be
checked and the oil changed as follows at the in-
tervals specified in the periodic maintenance and
lubrication chart.
Tightening torque:
Final gear oil drain bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
1. Final gear oil
2. Gasket
3. Final gear oil level check bolt
4. Correct oil levelRecommended final gear oil: See page 10-1.
1
243
Tightening torques:Final gear oil level check bolt:10 N·m (1.0 kgf·m, 7.4 lb·ft)
Final gear oil filler bolt: 23 N·m (2.3 kgf·m, 17 lb·ft)
UB4F60E0.book Page 27 Wednesday, April 25, 2018 11:52 AM
8-28
8To check the differential gear oil level
1. Park the ATV on a level surface.
2. Remove the differential gear oil filler bolt and its gasket, and then check the oil level in the
differential gear case. The oil level should be
at the brim of the filler hole.
3. If the oil is below the brim of the filler hole, add sufficient oil of the recommended type to
raise it to the correct level.
4. Check the gasket for damage, and replace it if necessary. 5. Install the oil filler bolt and its gasket, and then
tighten the bolt to the specified torque.
To change the differential gear oil 1. Park the ATV on a level surface.
2. Place an oil pan under the differential gear case to collect the used oil.
3. Remove the differential gear oil filler bolt, the differential gear oil drain bolt and their gasket
to drain the oil from the differential gear case.
1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil level
1
2
3
4
Tightening torque: Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)1. Differential gear oil drain bolt
2. Gasket
12
UB4F60E0.book Page 28 Wednesday, April 25, 2018 11:52 AM
8-29
8
4. Install the drain bolt and its new gasket, and
then tighten the bolt to the specified torque.
5. Refill with the recommended differential gear oil to the brim of the filler hole as shown.
NOTICE: Be sure no foreign material en-
ters the differential gear case.
[ECB00412]
6. Check the oil filler bolt gasket for damage, and replace it if necessary.
7. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified torque.
8. Check the differential gear case for oil leak- age. If oil is leaking, check for the cause.EBU23472CoolantThe coolant level should be checked regularly. In
addition, the coolant must be changed at the in-
tervals specified in the periodic maintenance and
lubrication chart.
Tightening torque:
Differential gear oil drain bolt:9.8 N·m (0.98 kgf·m, 7.2 lb·ft)
1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil level
1
2
3
4
Recommended differential gear oil: See page 10-1.
Tightening torque: Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
UB4F60E0.book Page 29 Wednesday, April 25, 2018 11:52 AM
10-2
10
Vibration on handle (EN1032, ISO5008):Will not exceed 2.5 m/s² (YFM70GPAK,
YFM70GPHK_EUR/FRA/GBR, YFM70GPLK,
YFM70GPXK_EUR/FRA/GBR)
Uncertainty of measurement:
0.1 m/s² (YFM70GPAK, YFM70GPHK_EUR/FRA/GBR,
YFM70GPLK, YFM70GPXK_EUR/FRA/GBR)Engine:Combustion cycle:4-stroke
Cooling system: Liquid cooled
Valve train:
SOHC
Number of cylinders: Single cylinder
Displacement: 686 cm³
Bore × stroke:
102.0 × 84.0 mm (4.02 × 3.31 in)
Compression ratio: 10.0 : 1
Starting system: Electric starter
Lubrication system:
Wet sumpEngine oil:Recommended brand:YAMALUBE
SAE viscosity grades:
5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50 Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Quantity: Oil change: 2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter removal: 2.10 L (2.22 US qt, 1.85 Imp.qt)
Final gear oil:Type:Yamaha Friction Modified Plus Shaft Drive Oil (Part No.:
ACC-SHAFT-PL-32) or SAE 80 API GL-4 Hypoid gear oil
Quantity: 0.20 L (0.21 US qt, 0.18 Imp.qt)Differential gear oil:Type:
Yamaha Friction Modified Plus Shaft Drive Oil (Part No.:
ACC-SHAFT-PL-32) or SAE 80 API GL-4 Hypoid gear oil0 10 30 50 70 90 110 130 ˚F
–20 –10 0 10 20 30 40 50 ˚CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
UB4F60E0.book Page 2 Thursday, June 7, 2018 10:42 AM
10-5
10
Brake fluid:Specified brake fluid:DOT 4Front suspension:Type:Double wishbone
Spring: Coil spring
Shock absorber:
Hydraulic damper
Wheel travel: 193 mm (7.6 in)Rear suspension:Type:
Double wishbone
Spring: Coil spring
Shock absorber: Hydraulic damper
Wheel travel:
232 mm (9.1 in)Electrical system:System voltage:12 V
Ignition system:
TCI
Charging system: AC magnetoBattery:Model:
YTX20L-BS Voltage, capacity:
12 V, 18.0 Ah
Lights:Headlight:
LED
Handlebar-mounted light: T15H, 35.0 W/36.5 W
Brake/tail light: LED
Meter lighting:
LED
Neutral indicator light: LED
High beam indicator light: LED
Reverse indicator light:
LED
Coolant temperature warning light: LED
Park indicator light: LED
Engine trouble warning light:
LED
High-range indicator light: LED
Low-range indicator light: LED
Differential gear lock indicator light:
LED
EPS warning light: LED
UB4F60E0.book Page 5 Wednesday, April 25, 2018 11:52 AM
12-1
12
INDEX
AAccessories and loading ................................................ 6-5
Accessories, DC jack ................................................... 4-27
Air filter element, cleaning ........................................... 8-37
Axle boots .................................................................... 8-48BBattery ......................................................................... 8-52
Battery voltage warning light ......................................... 4-3
Brake fluid, changing ................................................... 8-45
Brake fluid level, checking ........................................... 8-44
Brake lever, front ......................................................... 4-16
Brake levers, checking and lubricating ........................ 8-49
Brake pads, checking the front and rear ..................... 8-43
Brake pedal and rear brake lever ................................. 4-16
Brake pedal, checking and lubricating ........................ 8-50
Brake pedal free play, adjusting .................................. 8-47
Brakes .......................................................................... 8-42
Brakes, front and rear .................................................... 5-3
Brake/tail light .............................................................. 8-61CCables, checking and lubricating ................................ 8-49
Carrier, front ................................................................. 4-25
Carrier, rear .................................................................. 4-25
Chassis fasteners .......................................................... 5-8
Cleaning ......................................................................... 9-1
Coolant .................................................................5-3, 8-29
Coolant temperature warning light ................................ 4-3DDifferential gear oil ................................................5-3, 8-27Drive select lever ......................................................... 4-17
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 ...................................................... 4-11
Engine trouble warning light .......................................... 4-3
EPS warning light .......................................................... 4-4FFinal gear oil ......................................................... 5-3, 8-25
Four-wheel drive/differential gear lock icon .................. 4-4
Four-wheel drive switch (On-Command 4WD) ............ 4-12
Front and rear brake lever free play, checking ............ 8-46
Fuel ....................................................................... 4-19, 5-3
Fuel tank cap ............................................................... 4-18
Fuses, replacing .......................................................... 8-56HHandlebar switches ..................................................... 4-10
Headlight beam, adjusting ........................................... 8-60
Headlight bulb, replacing ............................................. 8-58
High beam indicator light ............................................... 4-2
High-range indicator light .............................................. 4-2
Horn switch .................................................................. 4-11IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-2
Instruments, lights and switches ................................... 5-8
UB4F60E0.book Page 1 Wednesday, April 25, 2018 11:52 AM