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10-2
10
Engine oil:Type:
SAE5W30 or SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter cartridge replacement:
1.90 L (2.01 US qt) (1.67 Imp.qt)
With oil filter cartridge replacement:
2.00 L (2.11 US qt) (1.76 Imp.qt)Final gear oil:Type:
SAE80 API GL-4 Hypoid gear oil
Quantity:
0.25 L (0.26 US qt) (0.22 Imp.qt)
Differential gear oil:Type:
SAE80 API GL-4 Hypoid gear oil
Quantity:
0.28 L (0.30 US qt) (0.25 Imp.qt)Cooling system:Coolant reservoir capacity (up to the maximum level mark):
0.30 L (0.32 US qt) (0.26 Imp.qt)
Radiator capacity (including all routes):
1.80 L (1.90 US qt) (1.58 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
Regular unleaded gasoline only (EUR)
Unleaded gasoline only (AUS)(NZL)
Fuel tank capacity:
20.0 L (5.28 US gal) (4.40 Imp.gal)
Fuel reserve amount:
3.5 L (0.92 US gal) (0.77 Imp.gal)Carburetor:Manufacturer:
MIKUNI
Type x quantity:
BSR42 x 1Spark plug (s):Manufacturer/model:
NGK/DPR8EA-9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
-20˚ -10˚ 0˚
10˚20˚ 30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
U2C661E0.book Page 2 Thursday, March 16, 2006 10:45 AM
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10-3
10
Clutch:Clutch type:
Wet, centrifugal automaticTransmission:Primary reduction system:
V-belt
Secondary reduction system:
Shaft drive
Secondary reduction ratio:
41/21 × 24/18 × 33/9 (9.544)
Transmission type:
V-belt automatic
Operation:
Left hand operation
Reverse gear:
25/17 (1.471)
Low range:
35/17 (2.058)
High range:
26/21 (1.238)Chassis:Frame type:
Steel tube frame
Caster angle:
5.0 °
Trail:
26.0 mm (1.02 in)Front tire:Type:
TubelessSize:
AT25 x 8-12
Manufacturer/model:
CHENG SHIN/C828-4P (AUS)(NZL)
DUNLOP/KT131 (EUR)
Rear tire:Type:
Tubeless
Size:
AT25 x 10-12
Manufacturer/model:
CHENG SHIN/C828-4P (AUS)(NZL)
DUNLOP/KT135 (EUR)Loading:Maximum load:
220.0 kg (485 lb)
(Total weight of rider, cargo, accessories, and tongue)Tire air pressure (measured on cold tires):Recommended:
Front:
35 kPa (5.0 psi) (0.35 kgf/cm²)
Rear:
30 kPa (4.3 psi) (0.30 kgf/cm²)
Minimum:
Front:
32 kPa (4.6 psi) (0.32 kgf/cm²)
Rear:
27 kPa (3.9 psi) (0.27 kgf/cm²)
Maximum:
Front:
38 kPa (5.5 psi) (0.38 kgf/cm²)
U2C661E0.book Page 3 Thursday, March 16, 2006 10:45 AM
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10-4
10
Rear:
33 kPa (4.8 psi) (0.33 kgf/cm²)
Front wheel:Wheel type:
Panel wheel
Rim size:
12 x 6.0ATRear wheel:Wheel type:
Panel wheel
Rim size:
12 x 7.5ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Left hand and right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damperWheel travel:
170 mm (6.7 in)
Rear suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
225 mm (8.9 in)Electrical system:Ignition system:
DC. CDI
Charging system:
AC magnetoBattery:Model:
YTX20L-BS
Voltage, capacity:
12 V, 18.0 AhHeadlight:Bulb type:
Krypton bulbBulb voltage, wattage x quantity:Headlight:
12 V, 30 W/30.0 W × 2
Tail/brake light:
12 V, 5.0/21.0 W × 1
Neutral indicator light:
LED
Reverse indicator light:
LED
U2C661E0.book Page 4 Thursday, March 16, 2006 10:45 AM
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10-5
10
Coolant temperature warning light:
LED
Park indicator light:
LED
On-Command four-wheel-drive/differential gear lock
indicator:
LCD
High-range indicator light:
LED
Low-range indicator light:
LED
Differential gear lock indicator light:
LEDFuses:Main fuse:
30.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Auxiliary DC jack fuse:
10.0 A
Backup fuse:
10.0 A
Four-wheel-drive motor fuse:
3.0 A
U2C661E0.book Page 5 Thursday, March 16, 2006 10:45 AM
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11-1
11
EBU26000
CONSUMER INFORMATION
EBU26011Identification numbers Record the key identification number, vehicle iden-
tification number and model label information in
the spaces provided below for assistance when or-
dering spare parts from a Yamaha dealer or for ref-
erence in case the ATV is stolen.
KEY IDENTIFICATION NUMBER:
VEHICLE IDENTIFICATION NUMBER:
MODEL LABEL INFORMATION:
EBU26020Key identification number
The key identification number is stamped into the
key. Record this number in the space provided and
use it for reference when ordering a new key.EBU26040Vehicle identification number
The vehicle identification number is stamped into
the frame.1. Key identification number
U2C661E0.book Page 1 Thursday, March 16, 2006 10:45 AM
Page 150 of 156
11-2
11The year of manufacture is listed in the vehicle
identification number as shown in the illustration.
NOTE:The vehicle identification number is used to identifyyour ATV.EBU26050Model label
The model label is affixed at the location in the il-
lustration. Record the information on this label in
the space provided. This information will be need-
ed when ordering spare parts from a Yamaha deal-
er.
1. Vehicle identification number (front left side)
1. Vehicle identification number
2. Year of manufacture
U2C661E0.book Page 2 Thursday, March 16, 2006 10:45 AM
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11-3
11
1. Model labelU2C661E0.book Page 3 Thursday, March 16, 2006 10:45 AM
Page 152 of 156

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-21
Air filter element, cleaning ............................................ 8-28
Axle boots .................................................................... 8-42BBattery .......................................................................... 8-46
Brake fluid, changing .................................................... 8-39
Brake fluid level, checking ............................................ 8-37
Brake lever free play and brake pedal position (rear),
adjusting and checking .............................................. 8-40
Brake lever free play, checking the front ...................... 8-39
Brake lever, front .......................................................... 4-12
Brake levers, checking and lubricating ......................... 8-43
Brake light switches ..................................................... 8-42
Brake pads, checking the front and rear ...................... 8-36
Brake pedal and rear brake lever ................................. 4-13
Brake pedal, checking and lubricating ......................... 8-44
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-43
Carburetor, adjusting .................................................... 8-34
Carrier, front ................................................................. 4-20
Carrier, rear .................................................................. 4-20
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-24
Coolant temperature warning light ................................. 4-2
DDifferential gear lock indicator light ................................ 4-3
Differential gear oil ................................................ 5-3, 8-22
Drive select lever .......................................................... 4-14
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ......... 8-36
Drive shaft universal joint, lubricating ........................... 8-45EEngine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-34
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-17
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-6FFinal gear oil ................................................................... 5-3
Final gear oil, changing ................................................ 8-21
Four-wheel-drive/differential gear lock indicator ............ 4-3
Fuel ....................................................................... 4-15, 5-3
Fuel cock ...................................................................... 4-16
Fuel tank cap ................................................................ 4-14
Fuses, replacing ........................................................... 8-48HHandlebar switches ........................................................ 4-6
Headlight beam, adjusting ............................................ 8-51
Headlight bulb, replacing .............................................. 8-49
High-range indicator light ............................................... 4-3
U2C661E0.book Page 1 Thursday, March 16, 2006 10:45 AM