light YAMAHA YFM350R 2008 Owners Manual

EBU17420
TABLE OF CONTENTS
SAFETY INFORMATION .............................. 1-1
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 2-1
DESCRIPTION .............................................. 3-1
Left view ...................................................... 3-1
Right view.................................................... 3-1
Controls and instruments ............................ 3-2
INSTRUMENT AND
CONTROL FUNCTIONS ................................ 4-1
Main switch ................................................ 4-1
Indicator lights ............................................ 4-2
Handlebar switches .................................... 4-2
Throttle lever .............................................. 4-3
Speed limiter .............................................. 4-4
Clutch lever ................................................ 4-5
Brake lever ................................................. 4-5
Brake pedal ................................................ 4-5
Parking brake lever .................................... 4-6
Shift pedal .................................................. 4-7
Drive select lever ........................................ 4-7
Fuel tank cap .............................................. 4-8Fuel .............................................................4-8
Fuel cock ....................................................4-9
Starter (choke) ..........................................4-11
Seat ..........................................................4-11
Adjusting the front shock
absorber assemblies ...............................4-12
Adjusting the rear shock
absorber assembly .................................4-14
PRE-OPERATION CHECKS ..........................5-1
Pre-operation check list ..............................5-1
Fuel .............................................................5-3
Engine oil ....................................................5-3
Front and rear brakes .................................5-3
Throttle lever ...............................................5-4
Drive chain ..................................................5-4
Tires ............................................................5-4
Measuring the tire pressure ........................5-5
Tire wear limit .............................................5-6
Chassis fasteners .......................................5-7
Instruments, lights and switches .................5-7
OPERATION...................................................6-1
Starting a cold engine .................................6-1U5YT64E0.book Page 1 Monday, April 9, 2007 1:03 PM

Starting a warm engine .............................. 6-3
Operating the drive select lever and
driving in reverse ...................................... 6-3
Shifting ....................................................... 6-4
Engine break-in .......................................... 6-6
Parking ....................................................... 6-6
Parking on a slope ..................................... 6-7
Accessories and loading ............................ 6-8
RIDING YOUR ATV ...................................... 7-1
GETTING TO KNOW YOUR ATV............... 7-2
RIDE WITH CARE AND
GOOD JUDGEMENT ................................ 7-2
BE CAREFUL WHERE YOU RIDE ............. 7-9
TURNING YOUR ATV .............................. 7-13
CLIMBING UPHILL ................................... 7-14
RIDING DOWNHILL.................................. 7-17
CROSSING A SLOPE............................... 7-18
CROSSING THROUGH
SHALLOW WATER................................. 7-19
RIDING OVER ROUGH TERRAIN ........... 7-21
SLIDING AND SKIDDING ......................... 7-22
WHAT TO DO IF... .................................... 7-23
WHAT TO DO... ........................................ 7-23PERIODIC MAINTENANCE AND
MINOR REPAIR .............................................8-1
Owner’s manual and tool kit .......................8-1
Periodic maintenance chart
for the emission control system ................8-3
General maintenance and
lubrication chart ........................................8-5
Checking the spark plug .............................8-9
Engine oil and oil filter element .................8-11
Cleaning the air filter element ...................8-14
Cleaning the spark arrester ......................8-18
Adjusting the carburetor ............................8-19
Adjusting the engine idling speed .............8-20
Adjusting the throttle cable free play .........8-21
Valve clearance ........................................8-21
Checking the front and rear brake pads ...8-22
Checking the brake fluid level ...................8-23
Changing the brake fluid ...........................8-24
Checking the front brake lever free play ...8-24
Checking the brake pedal position ............8-25
Adjusting the parking brake free play .......8-26
Brake light switches ..................................8-27
Adjusting the clutch lever free play ...........8-28
Drive chain slack .......................................8-29
Lubricating the drive chain ........................8-31
Checking and lubricating the cables .........8-32
U5YT64E0.book Page 2 Monday, April 9, 2007 1:03 PM

Checking and lubricating the brake and
clutch levers ........................................... 8-33
Checking and lubricating the brake and
shift pedals ............................................. 8-33
Checking the wheel hub bearings ............ 8-34
Lubricating the swingarm pivots ............... 8-34
Lubricating the rear suspension relay arm
and connecting arm pivoting points ........ 8-34
Lubricating the upper and
lower arm pivots ..................................... 8-36
Lubricating the steering shaft ................... 8-36
Battery ...................................................... 8-37
Replacing the fuse ................................... 8-38
Replacing a headlight bulb ....................... 8-39
Adjusting a headlight beam ...................... 8-41
Replacing the tail/brake light bulb ............ 8-41
Removing a wheel .................................... 8-42
Installing a wheel ...................................... 8-43
Troubleshooting ....................................... 8-43
Troubleshooting chart .............................. 8-44
CLEANING AND STORAGE .......................... 9-1
Cleaning ..................................................... 9-1
Storage ....................................................... 9-2SPECIFICATIONS .......................................10-1
CONSUMER INFORMATION.......................11-1
Identification numbers ...............................11-1
U5YT64E0.book Page 3 Monday, April 9, 2007 1:03 PM

1-4
1nition such as the pilot lights of water heat-
ers and clothes dryers. Gasoline can catch
fire and you could be burned.

When transporting the ATV in another vehi-
cle, be sure it is kept upright and that the fuel
cock is in the “OFF” position. Otherwise, fuel
may leak out of the carburetor or fuel tank.
Gasoline is poisonous. If you should swal-
low some gasoline or inhale a lot of gasoline
vapor, or get some gasoline in your eyes,
seek medical help immediately. If gasoline
spills on your skin, wash with soap and wa-
ter. If gasoline spills on your clothing,change your clothes.
WARNING
EWB00070Always operate your ATV in an area with ade-
quate ventilation. Never start or run the engine
in a closed area. Exhaust fumes are poisonous
and may cause loss of consciousness anddeath within a short time.
U5YT64E0.book Page 4 Monday, April 9, 2007 1:03 PM

3-1
3
EBU17680
DESCRIPTION
EBU17690Left view
EBU17700Right view
1. Front shock absorber assembly spring preload adjusting
ring
2. Fuel cock
3. Throttle stop screw
4. Air filter case
5. Battery
6. Owner’s tool kit
7. Oil filter element
8. Shift pedal
1. Spark arrester
2. Fuse
3. Rear shock absorber assembly spring preload adjusting
nut
4. Drive select lever
5. Fuel tank cap
6. Spark plug
7. Engine oil filler cap
8. Brake pedal
9. Rear brake light switch
10.Rear brake fluid reservoir
U5YT64E0.book Page 1 Monday, April 9, 2007 1:03 PM

3-2
3
EBU17712Controls and instrumentsNOTE:The ATV you have purchased may differ slightlyfrom the figures shown in this manual.1. Clutch lever
2. Parking brake lever
3. Front brake fluid reservoir
4. Brake lever
5. Throttle lever
6. Main switch
7. Handlebar switchesU5YT64E0.book Page 2 Monday, April 9, 2007 1:03 PM

4-1
4
EBU17731
INSTRUMENT AND CONTROL FUNCTIONS
EBU17760Main switch The positions of the main switch are as follows:
ON
All electrical systems are supplied with power. The
headlights and taillight come on when the light
switch is on, and the engine can be started. The
key cannot be removed.
OFF
All electrical systems are off. The key can be re-
moved.
1. Main switch
U5YT64E0.book Page 1 Monday, April 9, 2007 1:03 PM

4-2
4
EBU17791Indicator lights EBU17830Reverse indicator light “”
This indicator light comes on when the transmis-
sion is in the reverse position.EBU17860Neutral indicator light “”
This indicator light comes on when the transmis-
sion is in the neutral position.
EBU18061Handlebar switches EBU18080Engine stop switch “/”
Set this switch to “” before starting the engine.
The engine stop switch controls the ignition and
stops the engine when it is running. Use this switch
to stop the engine in an emergency situation. The
engine will not start or run when this switch is set
to “”.
1. Reverse indicator light “R”
2. Neutral indicator light “N”
1. Light switch “/ /OFF”
2. Engine stop switch “/”
3. Start switch “”
U5YT64E0.book Page 2 Monday, April 9, 2007 1:03 PM

4-3
4
EBU18100Start switch “”
Push this switch to crank the engine with the start-
er.CAUTION:ECB00050See the starting instructions on page 6-1 priorto starting the engine.EBU18151Light switch “//OFF”
Set this switch to “” to turn on the low beams
and the taillight. Set the switch to “” to turn on
the high beams and the taillight. Set the switch to
“OFF” to turn off all the lights.CAUTION:ECB00040Do not use the headlights with the engine
turned off for an extended period of time, oth-
erwise the battery may discharge to the point
that the starter motor will not operate properly.
If this should happen, remove the battery andrecharge it.
EBU18280Throttle lever Once the engine is running, movement of the throt-
tle lever will increase the engine speed.
Regulate the speed of the ATV by varying the
throttle position. Because the throttle is spring-
loaded, the ATV will decelerate, and the engine will
return to an idle any time the hand is removed from
the throttle lever.
Before starting the engine, check the throttle to be
sure it is operating smoothly. Make sure it returns
to the idle position as soon as the lever is released.
WARNING
EWB00250Malfunction of the throttle could make it diffi-
cult to speed up or slow down when you need
to. This could cause an accident. Check the op-1. Throttle lever
U5YT64E0.book Page 3 Monday, April 9, 2007 1:03 PM

5-2
5
Rear brakeCheck operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
Check brake pads for wear, and replace if necessary.
Check brake fluid level in reservoir, and add recommended brake
fluid to specified level if necessary.
Check hydraulic system for leakage. Correct if necessary.5-3, 8-22, 8-23, 8-25
ClutchCheck operation, and correct if necessary.
Lubricate cable if necessary.
Check lever free play, and adjust if necessary.8-28
Throttle leverMake sure that operation is smooth. Lubricate cable and lever hous-
ing if necessary.
Check cable free play, and adjust if necessary.5-4, 8-21
Control cablesMake sure that operation is smooth. Lubricate if necessary. 8-32
Drive chainCheck chain slack, and adjust if necessary.
Check chain condition. Lubricate if necessary.5-4, 8-29, 8-31
Wheels and tiresCheck wheel condition, and replace if damaged.
Check tire condition and tread depth. Replace if necessary.
Check air pressure. Correct if necessary.5-4, 5-5, 5-6
Brake and shift pedalsMake sure that operation is smooth. Lubricate pedal pivoting points
if necessary.8-33
Brake and clutch leversMake sure that operation is smooth. Lubricate lever pivoting points if
necessary.8-33
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened. 5-7
Instruments, lights and
switchesCheck operation, and correct if necessary. 5-7 ITEM ROUTINE PAGEU5YT64E0.book Page 2 Monday, April 9, 2007 1:03 PM