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 54 of 408
3-1
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-3.frameEL
EBU00032
DESCRIPTION AND MACHINE
IDENTIFICATION
1. Seat
2. Fuel tank cap
3. Engine oil tank
4. Rear brake pedal
5. Headlight
6. Fuel cock
7. Throttle stop screw
8. Coolant reservoir
9. Tail/brake light10. Shift pedal
11. Clutch lever
12. Handlebar switches
13. Parking brake
14. Main switch
15. Reverse knob
16. Throttle lever
17. Front brake lever
NOTE:
The machine you have purchased may differ
slightly from those shown in the figures of this
manual.
Page 90 of 408
4-29
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-4.frameEL
EBU00092
Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
EBU00093
Fuel cock
The fuel cock supplies fuel from the fuel tank to
the carburetor.
The fuel cock has three positions.
OFF: With the lever in this position fuel will
not flow. Always turn the lever to this
position when the engine is not running.
ON: With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
RES: This indicates reserve. If you run out of
fuel while riding, turn the lever to this
position. THEN FILL THE FUEL TANK AT
THE FIRST OPPORTUNITY. After refuel-
ling, return the fuel cock lever to the
“ON” position.
1. Fuel tank cap
2. Bouchon de réservoir de carburant
1. Tapón del depósito de combustible
Page 92 of 408
4-31
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-4.frameEL
EBU00095
Starter (choke) “ ”
Starting a cold engine requires a richer air-fuel
mixture. A separate starter circuit supplies this
mixture.
Move in direction a to turn on the starter
(choke).
Move in direction b to turn off the starter
(choke).
Refer to “Starting a cold engine” for proper op-
eration. (See page 6-3.)
1. Starter (choke) “”
1. Starter (enrichisseur) “ ”
1. Starter (choke) “ ”
Page 108 of 408

5-1
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-5.frameEL
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Brakes• Check operation, free play, fluid level and fluid leakage.
• Fill with DOT 4 brake fluid if necessary.5-5 ~ 5-7,
8-59 ~ 8-69
Clutch• Check operation, condition and lever free play. 8-75
Parking brake• Check operation, condition and cable slack. 8-71 ~ 8-73
Fuel• Check fuel level.
• Fill with fuel if necessary.5-9 ~ 5-11
Engine oil• Check oil level.
• Fill with oil if necessary.5-13 ~ 5-15,
8-17 ~ 8-29
Coolant reservoir• Check coolant level.
• Fill with coolant if necessary.5-17, 8-31
Drive chain• Check chain slack and condition.
• Adjust if necessary.5-19, 8-77 ~ 8-83
Throttle• Check for proper throttle cable operation. 5-21, 8-57
Wheels and tires• Check tire pressure, wear and damage.5-23 ~ 5-29,
8-93 ~ 8-95
Fittings and Fasteners• Check all fittings and fasteners. 5-21
Lights• Check for proper operation. 5-21, 8-105 ~ 8-115
Page 116 of 408
5-9
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-5.frameEL
EBU00128
Fuel
Make sure there is sufficient gasoline in the
tank.
NOTE:
1. If knocking or pinging occurs, use a differ-
ent brand of gasoline or higher octane
grade.
2. If unleaded gasoline is not available, then
leaded gasoline can be used. Recommended fuel:
Regular unleaded gasoline
with a research octane number of 91 or
higher.
Fuel tank capacity:
Total:
12 L
Reserve:
2.6 L
Page 118 of 408
5-11
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-5.frameEL
1. Filler tube 2. Fuel level
1. Tube de remplissage 2. Niveau de carburant
1. Tubo de llenado 2. Nivel de combustible
WARNING
Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.
Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up
any spilled fuel immediately.
Do not refuel right after the engine has
been running and is still very hot.
Be sure the fuel tank cap is closed secure-
ly.