Page 12 of 408

Yuki_DATA2:HM00G210_YFM660R-60:YFM350TOC-E.frame
EL
EBU00015
CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ....................... 1-1
SAFETY INFORMATION ........................ 2-1
DESCRIPTION AND MACHINE
IDENTIFICATION .................................... 3-1
Identification number records........... 3-3
Key identification number ................. 3-5
Vehicle identification number ........... 3-5
Model label ......................................... 3-7
CONTROL FUNCTIONS ......................... 4-1
Main switch ........................................ 4-1
Indicator and warning lights ............. 4-3
Handlebar switches.......................... 4-11
Throttle lever .................................... 4-15
Speed limiter .................................... 4-17
Clutch lever ....................................... 4-19
Front brake lever .............................. 4-19
Rear brake pedal .............................. 4-21
Parking brake .................................... 4-23
Shift pedal......................................... 4-27Reverse knob .....................................4-27
Fuel tank cap .....................................4-29
Fuel cock ............................................4-29
Starter (choke) ...................................4-31
Seat ....................................................4-33
Front shock absorber adjustment....4-35
Rear shock absorber adjustment .....4-37
PRE-OPERATION CHECKS .....................5-1
Front and rear brakes .........................5-5
Fuel.......................................................5-9
Engine oil ...........................................5-13
Coolant...............................................5-17
Chain ..................................................5-19
Throttle lever .....................................5-21
Fittings and Fasteners ......................5-21
Lights .................................................5-21
Switches ............................................5-21
Tires ...................................................5-23
How to measure tire pressure .........5-27
Tire wear limit ...................................5-291
2
3
4
5
Page 50 of 408
2-17
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-2.frameEL
WARNING
Always turn off the engine when refuel-
ing.
Do not refuel right after the engine has
been running and is still very hot.
Do not spill gasoline on the engine or ex-
haust pipe/muffler when refueling. Never
refuel while smoking, or while in the vi-
cinity of sparks, open flames, or other
sources of ignition such as the pilot lights
of water heaters and clothes dryers. Gas-
oline can catch fire and you could be
burned.
When transporting the machine in anoth-
er vehicle, be sure it is kept upright and
that the fuel cock is in the “OFF” position.
Otherwise, fuel may leak out of the carbu-
retor or fuel tank.
Gasoline is poisonous. If you should swal-
low some gasoline or inhale a lot of gaso-
line vapor, or get some gasoline in your
eyes, see your doctor immediately. If gas-
oline spills on your skin, wash with soap
and water. If gasoline spills on your cloth-
ing, change your clothes.
Page 64 of 408
4-3
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-4.frameEL
1. Reverse indicator light “R”
2. Neutral indicator light “N”
3. Coolant temperature warning light “ ”
1. Témoin de marche arrière “R”
2. Témoin de point mort “N”
3. Témoin d’avertissement de la température du liquide de
refroidissement “ ”
1. Luz de control de marcha atrás “R”
2. Luz de control de punto muerto “N”
3. Luz de aviso de la temperatura del
refrigerante “ ”
EBU00802
Indicator and warning lights
EBU00602
Reverse indicator light “R”
This indicator light comes on when the trans-
mission is in reverse.
EBU00603
Neutral indicator light “N”
This indicator light comes on when the trans-
mission is in neutral.
Page 66 of 408
4-5
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-4.frameEL
EBU00713
Coolant temperature warning light “ ”
When the coolant temperature reaches a spec-
ified level, this light comes on to warn that the
coolant temperature is too hot. If the light
comes on during operation, stop the engine as
soon as it is safe to do so and allow the engine
to cool down for about 10 minutes.
The coolant temperature warning light circuit
can be checked according to the procedure on
page 4-7.
CAUTION:
The engine may overheat if the ATV is
overloaded. If this happens, reduce the
load to specification.
Restart after making sure that the light is
out. Continuous use while the light is on
may cause damage to the engine.
Page 68 of 408
4-7
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-4.frameEL
EBU00714
Coolant temperature warning light checking method
ACB-09E
Turn the main switch to “ON” and
the engine stop switch to “ ”.
Coolant temperature warning
light does not come on.Coolant temperature
warning light comes on.
Coolant temperature
warning light does
not come on.
Coolant temperature and
electrical circuit are OK.
Go ahead with riding.
Push the start switch with the
transmission in the neutral position.
Ask a Yamaha dealer to
inspect the electrical circuit.
Coolant temperature
warning light comes
on momentarily.
Page 364 of 408
8-111
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameEL
1. Bulb holder
1. Fixation d’ampoule
1. Portabombillas
1. Bulb 2. Bulb holder
1. Ampoule 2. Fixation d’ampoule
1. Bonbilla 2. Portabombillas
7. Push the bulb holder inward, turn it coun-
terclockwise and remove the defective
bulb.
WARNING
The headlight bulb is hot when it is on and im-
mediately after it is turned off. Wait for the
bulb to cool down before touching or remov-
ing it. You can be burned, or a fire could start if
the bulb touches something flammable.
8. Put a new bulb into position and secure it
in place with the bulb holder.
9. Install the bulb holder cover.
CAUTION:
Make sure the bulb holder cover is securely fit-
ted over the bulb holder and seated against
the reflector.
10. Align the projections with the holders, in-
stall the headlight unit into the case, and
install the screw.
11. Install the headlight cover in the original
position, and then install the screw.
Page 370 of 408

8-117
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameEL
EBU00413
Troubleshooting
Although Yamaha machines receive a rigid in-
spection before shipment from the factory,
trouble may occur during operation.
Any problem in the fuel, compression, or igni-
tion systems can cause poor starting and loss
of power. The troubleshooting chart describes
a quick, easy procedure for making checks. If
your machine requires any repair, take it to a
Yamaha dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to
properly service your machine. Use only genu-
ine Yamaha parts on your machine. Imitation
parts may look like Yamaha parts, but they are
often inferior. Consequently, they have a short-
er service life and can lead to expensive repair
bills.
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces.
Page 392 of 408
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-SPEC-E.frameEL
10-5
Wheel travel:
Front
Rear230 mm
220 mm
Electrical:
Ignition system
Generator system
Battery type/voltage capacityDC-C.D.I.
A.C. Magneto
YTX14-BS/12 V, 12 AH
Headlight type: Krypton bulb
Bulb voltage, wattage
× quantity:
Headlight
Tail/brake light
Indicator/warning lights:
Neutral
Reverse
Coolant temperature12 V, 30 W/30 W × 2
12 V, 5 W/21 W × 1
12 V, 1.7 W × 1
12 V, 1.7 W × 1
12 V, 1.7 W × 1
Fuse:
Main fuse 20 AMODEL YFM660R