2012 YAMAHA YFM350R-W check engine light

EBU17420
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 1-1
SAFETY INFORMATION .............................. 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
Speedometer .............................................. 4-2
Handlebar switches .................................... 4-3
Throttle lever .............................................. 4-4
Speed limiter .............................................. 4-5
Clutch lever ................................................ 4-6
Brake lever ................................................. 4-6
Brake pedal ................................................ 4-6
Parking brake lever .................................... 4-7
Shift pedal .................................................. 4-8
Drive select lever ........................................ 4-8Fuel tank cap ..............................................4-9
Fuel .............................................................4-9
Fuel cock ..................................................4-11
Starter (choke) ..........................................4-12
Steering lock .............................................4-13
Seat ..........................................................4-14
Adjusting the front shock absorber
assemblies ..............................................4-14
Adjusting the rear shock absorber
assembly .................................................4-16
PRE-OPERATION CHECKS ..........................5-1
Fuel .............................................................5-3
Engine oil ....................................................5-3
Front and rear brakes .................................5-3
Throttle lever ...............................................5-3
Drive chain ..................................................5-4
Tires ............................................................5-4
Chassis fasteners .......................................5-6
Instruments, lights and switches .................5-6
OPERATION...................................................6-1
Starting a cold engine .................................6-1
Starting a warm engine ...............................6-3U10P70E0.book Page 1 Thursday, July 21, 2011 8:51 AM

Operating the drive select lever and
driving in reverse ...................................... 6-3
Shifting ....................................................... 6-4
Engine break-in .......................................... 6-6
Parking ....................................................... 6-7
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
JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............. 7-9
TURNING YOUR ATV .............................. 7-12
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL.................................. 7-16
CROSSING A SLOPE............................... 7-18
CROSSING THROUGH SHALLOW
WATER ................................................... 7-19
RIDING OVER ROUGH TERRAIN ........... 7-20
SLIDING AND SKIDDING ......................... 7-21
WHAT TO DO IF... .................................... 7-22
WHAT TO DO... ........................................ 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-2Periodic 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 ...................8-15
Cleaning the spark arrester ......................8-18
Adjusting the carburetor ............................8-20
Adjusting the engine idling speed .............8-20
Adjusting the throttle lever free play .........8-21
Valve clearance ........................................8-22
Brakes .......................................................8-22
Checking the front and rear brake pads ...8-22
Checking the brake fluid level ...................8-23
Changing the brake fluid ...........................8-25
Checking the front brake lever free play ...8-25
Checking the brake pedal height ..............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 ........................8-32
Checking and lubricating the cables .........8-32
Checking and lubricating the brake and
clutch levers ............................................8-33
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6-1
6
EBU19881
OPERATION
EBU19901Read the Owner’s Manual carefully before riding
the ATV. If there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWB00631Read the Owner’s Manual carefully to become
familiar with all controls in order to help pre-
vent any loss of control, which could cause an
accident or injury.EBU28093Starting a cold engine NOTICEECB00150See the “Engine break-in” section on page 6-6
prior to operating the engine for the first time.1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the key to “ON” and the engine stop
switch to“”.4. Shift the transmission into neutral. The neutral
indicator light should come on. If the indicator
light does not come on, have a Yamaha deal-
er check the electrical circuit.
TIPThis model is equipped with an ignition circuit cut-
off system. The engine can be started under the
following conditions.
The transmission is in neutral.
The clutch is disengaged with the shift pedal and
the drive select lever in any position. However, it
is recommended to shift into neutral before start-
ing the engine.5. Use the starter (choke) in reference to the fig-
ure:TIPBe sure to move the starter lever gently to keep the
correct starter lever assembly position.
Position (1):
Cold engine start with ambient temperature
below 5 °C (40 °F).
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8-9
8
EBU23213Checking the spark plug The spark plug is an important engine component,
which is easy to check. Since heat and deposits
will cause any spark plug to slowly erode, the spark
plug should be removed and checked in accor-
dance with the periodic maintenance and lubrica-
tion chart. In addition, the condition of the spark
plug can reveal the condition of the engine.
To remove the spark plug
1. Remove the spark plug cap.2. Remove the spark plug as shown, with the
spark plug wrench included in the owner’s tool
kit.
To check the spark plug
1. Check that the porcelain insulator around the
center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the ATV
is ridden normally).1. Spark plug cap
1. Spark plug wrench
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8-18
8 NOTICE: Make sure that the air filter ele-
ment is properly seated in the air filter
case. Never operate the engine with the air
filter element removed. This will allow un-
filtered air to enter the engine, causing rap-
id engine wear and possible engine
damage. Additionally, operation without
the air filter element will affect carburetor
jetting with subsequent poor performance
and possible engine overheating.
[ECB00461]
13. Install the seat.TIPThe air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter element maintenance
is performed, check the air inlet of the air filter case
for obstructions. Check the air filter case rubber
joint to the carburetor fittings and the rubber joint
manifold fittings for an air-tight seal. Tighten all fit-
tings securely to avoid the possibility of unfiltered
air entering the engine.
EBU27703Cleaning the spark arrester Select a well-ventilated area free of combustible
materials and make sure the exhaust and muffler
are cool.
1. Remove the tailpipe bolt.
2. Remove the tailpipe by pulling it out of the
muffler.
3. Tap the tailpipe lightly, and then use a wire
brush to remove any carbon deposits from the
spark arrester portion of the tailpipe and inside
of the tailpipe housing.1. Tailpipe bolt
2. Tailpipe
1
2
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INDEX
AAccessories and loading ................................................ 6-8
Air filter element, cleaning ............................................ 8-15
Auxiliary light bulb ........................................................ 8-44BBattery .......................................................................... 8-38
Brake and clutch levers, checking and lubricating ....... 8-33
Brake and shift pedals, checking and lubricating ......... 8-34
Brake fluid, changing ................................................... 8-25
Brake fluid level, checking ........................................... 8-23
Brake lever ..................................................................... 4-6
Brake lever free play, checking the front ...................... 8-25
Brake light switches ..................................................... 8-27
Brake pads, checking the front and rear ...................... 8-22
Brake pedal .................................................................... 4-6
Brake pedal height, checking ....................................... 8-25
Brakes .......................................................................... 8-22
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-32
Carburetor, adjusting ................................................... 8-20
Chassis fasteners .......................................................... 5-6
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-6
Clutch lever free play, adjusting ................................... 8-28DDrive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-32Drive chain slack .......................................................... 8-29
Drive select lever ........................................................... 4-8
Drive select lever and driving in reverse ........................ 6-3
EEngine break-in .............................................................. 6-6
Engine, cold start ........................................................... 6-1
Engine idling speed ..................................................... 8-20
Engine oil ....................................................................... 5-3
Engine oil and oil filter element .................................... 8-11
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-3FFuel ......................................................................... 4-9, 5-3
Fuel cock ..................................................................... 4-11
Fuel tank cap ................................................................. 4-9
Fuses, replacing .......................................................... 8-40HHandlebar switches ....................................................... 4-3
Hazard switch ................................................................ 4-4
Headlight beam ............................................................ 8-41
Headlight bulb .............................................................. 8-41
High beam indicator light ............................................... 4-2
Horn switch .................................................................... 4-4IIdentification numbers .................................................. 11-1
Indicator lights ................................................................ 4-2
Instruments, lights and switches .................................... 5-6
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