light YAMAHA YFM350R 2008 User Guide

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EBU19840Chassis fasteners Make sure that all nuts, bolts and screws are prop-
erly tightened.EBU19850Instruments, lights and switches Check that all instruments, lights and switches are
working properly. Correct if necessary.1. Tire wear limitU5YT64E0.book Page 7 Monday, April 9, 2007 1:03 PM

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EBU19880
OPERATION
EBU19900Read the Owner’s Manual carefully before riding
the ATV.
WARNING
EWB00630Read 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. If there is a control or func-
tion you do not understand, ask your Yamahadealer.EBU20161Starting a cold engine
WARNING
EWB00640Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the ATV, which could lead to an acci-dent or collision.
CAUTION:ECB00150See the “Engine break-in” section on page 6-6prior to operating the engine for the first time.
1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the main switch 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.NOTE:This 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.
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NOTE:The engine is warm when it responds normally tothe throttle with the starter (choke) turned off.EBU20291Starting a warm engine Follow the same procedure as for starting a cold
engine, with the exception that the starter (choke)
is not required when the engine is warm. Instead,
start the engine with the throttle slightly open.EBU20340Operating the drive select lever and
driving in reverse CAUTION:ECB00170Before shifting, stop the ATV, otherwise thetransmission may be damaged.
Shifting: Reverse to Forward
1. Bring the ATV to a complete stop.
2. Pull in the clutch lever to disengage the clutch.
3. Apply the brake pedal.
4. While pulling the drive select lever handle up-
ward, move the drive select lever forward until
it completely stops.5. Release the brake pedal.
6. Open the throttle lever gradually and release
the clutch lever slowly.
Shifting: Forward to Reverse
1. Bring the ATV to a complete stop.
2. Pull in the clutch lever to disengage the clutch.
3. Apply the brake pedal.
4. While pulling the drive select lever handle up-
ward, move the drive select lever to the rear
until it completely stops.
1. Drive select lever
2. Drive select lever handle
3. For forward drive
4. For reverse drive
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NOTE:When in reverse, the reverse indicator light should
be on. If the indicator light does not come on, havea Yamaha dealer check the electrical circuit.
5. Check behind you for people or obstacles,
and then release the brake pedal.
6. Open the throttle lever gradually and release
the clutch lever slowly. Continue to watch to
the rear while backing.
WARNING
EWB00720Improper operation in reverse could make you
hit an obstacle or even a person behind you,
resulting in serious injury. When you shift into
reverse, make sure there are no people or ob-
stacles behind you. When it is safe to proceed,go slowly.EBU20530Shifting This ATV has a 6-speed forward and 1-speed re-
verse transmission. The transmission allows you
to control the amount of power you have available
at a given speed or for starting, accelerating, climb-
ing hills, etc.To shift into neutral, return the throttle lever to the
closed position, apply the clutch, and then repeat-
edly depress the shift pedal until it stops.
When it stops, it will be in first gear. Raise the pedal
slightly to reach the neutral position.
EBU20590To start out and accelerate
1. Release the throttle lever, and then release
the parking brake.1. Shift pedal
2. Neutral position
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EBU20900Parking on a slope
WARNING
EWB00870Avoid parking on hills or other inclines. Park-
ing on a hill or other incline could cause the
ATV to roll out of control, increasing the
chance of an accident. If you must park on an
incline, place the ATV transversely across the
incline, apply the parking brake, stop the en-
gine, shift into first gear, and then block the
front and rear wheels with rocks or other ob-
jects.Do not park the ATV at all on hills that are so
steep you could not walk up them easily.
1. Bring the ATV to a stop by applying the front
brake.
2. With the front and rear brake applied, pull the
clutch lever, shift into the neutral position, re-
lease the clutch lever, and then apply the
parking brake.
3. Stop the engine by setting the engine stop
switch to “”.
4. With the front and rear brakes applied, pull the
clutch lever, shift into first gear, and then re-
lease the clutch lever, brake lever and brake
pedal.NOTE:Make sure that the neutral indicator light goes off.
5. Turn the key to “OFF”.
1. Locked positionU5YT64E0.book Page 7 Monday, April 9, 2007 1:03 PM

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WARNING
EWB01720Always open the throttle gradually and release
the clutch lever slowly. Otherwise, the ATV
could wheelie which would increase thechance of an accident.CAUTION:ECB00230Do not shift gears without releasing the throt-
tle. Damage to the engine or drive train may oc-cur.
When slowing down or stopping, release the throt-
tle and apply the brakes smoothly and evenly. As
you slow down, shift to a lower gear. Be sure that
the engine has sufficiently slowed before engaging
a lower gear. Improper use of the brakes or shifting
can cause the tires to lose traction, reducing con-
trol and increasing the possibility of an accident.
WARNING
EWB01560Make sure the engine has sufficiently slowed
before shifting to a lower gear. Engaging a low-
er gear when the engine speed is too highcould cause the wheels to stop rotating.TURNING YOUR ATV
To achieve maximum traction on unpaved surfac-
es, the two rear wheels are mounted solidly on one
axle and turn together at the same speed. There-
fore, unless the wheel on the inside of the turn is al-
lowed to slip or lose some traction, the ATV will
resist turning. A special turning technique must be
used to allow the ATV to make turns quickly and
easily. It is essential that this skill be learned first at
low speed.
WARNING
EWB01570Always follow proper procedures for turning
as described in this Owner’s Manual. Practice
turning at low speeds before attempting to turn
at faster speeds. Do not turn at speeds too fastfor your skills or the conditions.
As you approach a curve, slow down and begin to
turn the handlebars in the desired direction. As you
do so, put your weight on the footboard to the out-
side of the turn (opposite your desired direction)
and lean your upper body into the turn. Use the
throttle to maintain an even speed through the turn.
This maneuver will let the wheel on the inside of
the turn slip slightly, allowing the ATV to make the
turn properly.
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7 As you travel across a slope, lean your body in the
uphill direction. It may be necessary to correct the
steering when riding on loose surfaces by pointing
the front wheels slightly uphill. When riding on
slopes, be sure not to make sharp turns either up
or down hill.
If your ATV does begin to tip over, gradually steer
in the downhill direction if there are no obstacles in
your path. As you regain proper balance, gradually
steer again in the direction you wish to travel.
WARNING
EWB01631Never attempt to turn the ATV around on any
hill until you have mastered the turning tech-
nique as described in the Owner’s Manual on
level ground. Be very careful when turning on
any hill. Avoid crossing the side of a steep hill
if possible.
When crossing the side of a hill:
Always follow proper procedures as de-
scribed in the Owner’s Manual.
Avoid hills with excessively slippery or loose
surfaces.
Shift your weight to the uphill side of theATV.CROSSING THROUGH SHALLOW WATER
The ATV can be used to cross slow moving, shal-
low water of up to a maximum of 35 cm (14 in) in
depth. Before entering the water, choose your path
carefully. Enter where there is no sharp drop off,
and avoid rocks or other obstacles which may be
slippery or upset the ATV. Drive slowly and care-
fully.
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EBU23070NOTE:
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and
change the brake fluid.20Engine oil filter ele-
mentClean or replace if necessary.√√√
21 Engine oil strainerClean.√√√
22*Moving parts and
cablesLubricate.√√√√
23*Throttle lever hous-
ing and cableCheck operation and correct if necessary.
Check throttle cable free play and adjust if neces-
sary.
Lubricate throttle lever housing and cable.√√√√√
24*Front and rear brake
switchesCheck operation and correct if necessary.√√√√√
25*Lights and switchesCheck operation and correct if necessary.
Adjust headlight beams.√√√√√ NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320U5YT64E0.book Page 7 Monday, April 9, 2007 1:03 PM

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EBU23211Checking 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).
NOTE:If the spark plug shows a distinctly different color,
the engine could be operating improperly. Do not
attempt to diagnose such problems yourself. In-stead, have a Yamaha dealer check the ATV.
1. Spark plug cap
1. Spark plug wrench
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8will affect carburetor jetting with subsequent
poor performance and possible engine over-
heating.EBU27701Cleaning the spark arrester Select a well-ventilated area free of combustible
materials and make sure the exhaust and muffler
are cool.
1. Remove the 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.
4. Insert the tailpipe into the muffler and align the
bolt holes.
5. Install the bolt and tighten it to the specified
torque.
6. Remove the purging bolt.1. Bolt
1. Tailpipe
2. Spark arresterTightening torque:
Tailpipe bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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