2009 YAMAHA YFM90R Owners Manual

10
Engine oil quantity:Periodic oil change: 0.8 L (0.84 US qt) (0.70 Imp.qt)Final transmission oil:Type:SAE80 API GL-4 Hypoid gear oil
Quantity: 0.30 L (0.32 US qt) (0.27 Imp.qt)Air filter:Air filter element: Wet elementFuel:Recommended fuel: Regular unleaded gasoline only (EUR)
Unleaded gasoline only (AUS)(NZL)
Fuel tank capacity: 4.8 L (1.27 US gal) (1.06 lmp.gal)
Fuel reserve amount: 1.0 L (0.26 US gal) (0.22 Imp.gal)Carburetor:Manufacturer:TK
Type x quantity: SVR 22-1G x 1Spark plug (s):Manufacturer/model:NGK/CR7HSA
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)
Chassis:Frame type: Steel tube frame
Caster angle: 4.0 °
Trail: 16 mm (0.63 in)
Front tire:Type:Tubeless
Size: AT18 x 7-8
Manufacturer/model: MAXXIS/M939
Clutch:Clutch type: Dry, centrifugal automatic
Transmission:Primary reduction system: V-belt
Primary reduction ratio:
2.47-0.61:1
Secondary reduction system: Spur
Secondary reduction ratio: 41/15 × 45/13 (9.462)
Third reduction system:
Chain drive
Third reduction ratio: 28/13(2.154)
Transmission type: V-belt automatic
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Rear tire:Type:Tubeless
Size: AT18 x 9-8
Manufacturer/model: MAXXIS/M940Loading:Maximum loading limit: 70.0 kg (154 lb)
(Total weight of rider, cargo, accessories, and tongue)Tire air pressure (measured on cold tires):Recommended:Front:25 kPa (3.6 psi) (0.25 kgf/cm
2)
Rear: 25 kPa (3.6 psi) (0.25 kgf/cm2)
Minimum: Front:22 kPa (3.2 psi) (0.22 kgf/cm2)
Rear: 22 kPa (3.2 psi) (0.22 kgf/cm2)
Front wheel:
Wheel type: Panel wheel
Rim size: 8 x 5.5AT
Rear wheel:Wheel type: Panel wheel
Rim size: 8 x 7ATFront brake:Type:Drum brake
Operation: Right hand operationRear brake:Type:Single disc brake
Operation: Left hand operation
Recommended fluid: DOT4Front suspension:Type:Double wishbone
Spring/shock absorber type: Coil spring/oil damper
Wheel travel:
111 mm (4.4 in)

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Electrical system:Ignition system: CDI
Charging system: AC magnetoBattery:Model:
GTX5L-BS
Voltage, capacity: 12 V,4 .0 Ah Fuses:Main fuse: 10 A Noise and vibration level:Noise level (77/311/EEC):
77.4 dB(A) (EUR)
Vibration on seat (EN1032, ISO5008): Will not exceed 0.5 m/s
2 (EUR)
Vibration on handlebar (EN1032, ISO5008): Will not exceed 2.5 m/s2 (EUR)
Rear suspension:Type:Swingarm
Spring/shock absorber type: Coil spring/oil damper
Wheel travel: 83 mm (3.3 in)

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CONSUMER INFORMATION
Identification 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:Key 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.
Vehicle identification number
The vehicle identification number is stamped into
the frame.1. Key identification number
1

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TIPThe vehicle identification number is used to identi-fy your ATV. Model 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 number1. Model label
1
1

INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-15BBattery ........................................................................\
...8-28
Brake lever, front.............................................................4-6Brake lever, rear............................................................4-6
Brake lever free play, checking the rear........................8-26
Brake levers, checking and lubricating .............. .......... 8-27
Brakes, front and rear....................................................5-3
Brake pads, checking the rear.......................................8-25
Brake fluid level, checking the rear...............................8-25
Brake fluid level, changing the rear..............................8-26 Brake lever free play, adjusting the front......................8-23CCables, checking and lubricating ................................. 8-27
Carburetor, adjusting.................................................... 8-20
Chassis fasteners........................................................... 5-7
Cleaning..........................................................................9-1EEngine break-in .............................................................. 6-4
Engine, cold start...........................................................6-1
Engine idling speed ...................................................... 8-20 Engine oil............................................................5-3, 8-11
Engine, starting a warm................................................6-3
Engine stop switch.......................................................4-2
Fuel........................................................................4-8, 5-3
Fuel cock......................................................................4-10
Fuel tank cap..................................................................4-8
Fuse, replacing.............................................................8-30
F
KKey identification number ............................................. 11-1LLabel locations...............................................................2-1HHandlebar switches ........................................................ 4-2IIdentification numbers .................................................. 11-1
Instruments and switches.............................................5-7MMain switch .................................................................... 4-1
Maintenance and lubrication chart.................................8-5
Maintenance chart, emission control system.................8-3
Model label...................................................................11-2
Choke ............................................................................ 4-11 Brake shoes, checking the front .................................. 8-22
Final transmission oil ........................................... 5-3, 8-14
Engine speed limiter plate............................................ 4-5
Kick starter ................................................................. 4-12

OOwner’s manual and tool kit ........................................... 8-1PParking ........................................................................\
... 6-4
Parking brake ................................................................. 4-7
Parking on a slope ......................................................... 6-5
Part locations ................................................................. 3-1
Pre-operation check list.................................................. 5-1RRiding your ATV ............................................................. 7-1SSafety information .......................................................... 1-1
Spark arrester, cleaning ............................................... 8-19
Spark plug, checking ...................................................... 8-9
Specifications .................................................................. 10-1
Start switch..................................................................... 4-2
Storage........................................................................\
... 9-2TThrottle cable free play, checking................................8-21
Throttle lever..........................................................4-3, 5-4
Timing chain.................................................................8-22
Tire pressure, measuring ............................................... 5-5
Tires ........................................................................\
....... 5-4
Tire wear limit ................................................................. 5-6
Troubleshooting...........................................................8-34
Troubleshooting chart..................................................8-35
VValve clearance............................................................ 8-22
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-28
Wheel, installing ........................................................... 8-33
Wheel, removing .......................................................... 8-32
Seat ........................................................................\
...... 4-11 Vehicle speed limiter ...................................................... 4-4
Speed limiters.................................................................. 4-3

YAMAHA MOTOR CO., LTD.
PRINTED ON RECYCLED PAPERPRINTED IN TAIWAN
2008.07(E)