wheel YAMAHA YFM350R-W 2010 User Guide

7-16
7
WARNING
EWB01600Never 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.
If your ATV has stalled or stopped and you believe
you can continue up the hill, restart carefully to
make sure you do not lift the front wheels which
could cause you to lose control. If you are unable
to continue up the hill, dismount the ATV on the up-
hill side. Physically turn the ATV around and then
descend the hill.
If you start to roll backwards, DO NOT apply the
brake pedal to stop or try to put the ATV in gear.
The ATV could easily tip over backwards. Instead,
apply the front brake gradually, or dismount the
ATV immediately on the uphill side.
U10P60E0.book Page 16 Thursday, June 15, 2006 4:19 PM

7-19
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.
U10P60E0.book Page 19 Thursday, June 15, 2006 4:19 PM

7-22
7you go over obstacles, always follow proper
procedures as described in the Owner’s Manu-
al.
SLIDING AND SKIDDING
Care should be used when riding on loose or slip-
pery surfaces since the ATV may slide. If unex-
pected and uncorrected, sliding could lead to an
accident.
To reduce the tendency for the front wheels to slide
in loose or slippery conditions, positioning your
weight over the front wheels will sometimes help.If the rear wheels of your ATV start to slide side-
ways, control can usually be regained (if there is
room to do so) by steering in the direction of the
slide. Applying the brakes or accelerating is not
recommended until you have corrected the slide.
With practice, over a period of time, skill at con-
trolled sliding can be developed. The terrain
should be chosen carefully before attempting such
maneuvers, since both stability and control are re-
duced. Bear in mind that sliding maneuvers should
always be avoided on extremely slippery surfaces
such as ice, since all control may be lost.U10P60E0.book Page 22 Thursday, June 15, 2006 4:19 PM

7-23
7
WARNING
EWB01661Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain.
On extremely slippery surfaces, such as ice,
go slowly and be very cautious in order to re-
duce the chance of skidding or sliding out ofcontrol.
WHAT TO DO IF...
This section is designed to be a reference guide
only. Be sure to read each section on riding tech-
niques completely.
WHAT TO DO...
If your ATV doesn’t turn when you want it to:
Bring the ATV to a stop and practice the turning
maneuvers again. Be sure you are putting your
weight on the footboard to the outside of the
turn. Position your weight over the front wheels
for better control. (See page 7-13.)
If your ATV begins to tip while turning:
Lean more into the turn to regain balance. If nec-
essary, gradually let off the throttle and/or steer
to the outside of the turn. (See page 7-13.)

If your ATV starts to slide sideways:
Steer in the direction of the slide if you have the
room. Applying the brakes or accelerating is not
recommended until you have corrected the
slide. (See page 7-22.)
If your ATV can’t make it up a hill you are trying
to climb:
Turn the ATV around if you still have forward
speed. If not, stop, dismount on the uphill side of
the ATV and physically turn the ATV around. If
the ATV starts to slip backwards, DO NOT USE
THE BRAKE PEDAL – the ATV may tip over on
top of you. Dismount the ATV on the uphill side.
(See page 7-14.)
If your ATV is traversing a sloping surface:
Be sure to ride with your weight positioned to-
wards the uphill side of the ATV to maintain
proper balance. If the ATV starts to tip, steer
down the hill (if there are no obstacles in your
way) to regain balance. If you discover that the
ATV is going to tip over, dismount on the uphill
side. (See page 7-14.)
If your ATV encounters shallow water:
Ride slowly and carefully through slow moving
water, watching for obstacles. Be sure to let wa-
ter drain from the ATV and CHECK YOUR
U10P60E0.book Page 23 Thursday, June 15, 2006 4:19 PM

8-4
8
7*Rear brakeCheck operation and correct if necessary.
Check fluid level and ATV for fluid leakage, and
correct if necessary.√√√√√
Replace brake pads. Whenever worn to the limit
8*Brake hosesCheck for cracks or other damage, and replace if
necessary.√√√√
Replace. Every 4 years
9*Parking bra keCheck operation and adjust if necessary.√√√√√
10*WheelsCheck runout and for damage, and replace if nec-
essary.√ √√√
11*TiresCheck tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if
necessary.√ √√√
12*Wheel bearingsCheck for looseness or damage, and replace if
necessary.√ √√√
13*Swingarm pivotsCheck operation and for excessive play, and re-
place bearings if necessary.
Lubricate with lithium-soap-based grease.√√√
14*Upper and lower
arm pivotsLubricate with lithium-soap-based grease.√√√
15 Drive chainCheck chain slack and adjust if necessary.
Check rear wheel alignment and correct if necess-
sary.
Clean and lubricate.√√√√√ NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1200
(750)2400
(1500)2400
(1500)4800
(3000)
hours 20 75 150 150 300U10P60E0.book Page 4 Thursday, June 15, 2006 4:19 PM

8-20
8
EBU24130Checking the front and rear brake pads The front and rear brake pads must be checked for
wear at the intervals specified in the periodic main-
tenance and lubrication chart.EBU24150Front brake pads
Each brake pad is provided with a wear indicator
groove, which allows you to check the brake pad
wear without having to disassemble the brake. To
check the brake pad wear, check the wear indica-
tor groove. If a brake pad has worn to the point that
the wear indicator groove is almost in contact with
the disc plate, have a Yamaha dealer replace the
brake pads as a set.
NOTE:The wheels need to be removed to check thebrake pads. (See page 8-40.)EBU24200Rear brake pads
Each brake pad is provided with a wear indicator
groove, which allows you to check the brake pad
wear without having to disassemble the brake. To
check the brake pad wear, check the wear indica-
tor groove. If a brake pad has worn to the point that
the wear indicator groove is almost in contact with
the disc plate, have a Yamaha dealer replace the
brake pads as a set.1. Wear indicator groove
U10P60E0.book Page 20 Thursday, June 15, 2006 4:19 PM

8-25
8
NOTE:If the cable length cannot be adjusted to specifica-tion, consult a Yamaha dealer.
5. Tighten the locknut on the brake cable.
6. Turn in the adjusting bolt at the rear brake cal-
iper until it feels tight, then turn it out 1/8 turn
and tighten its locknut to the specified torque.CAUTION:ECB00520When tightening the locknut, hold the adjust-
ing bolt with a wrench so that it does not turntogether with the locknut.
WARNING
EWB02090Operating with improperly serviced or adjust-
ed brakes could cause the brakes to malfunc-
tion, resulting in reduced braking
performance. This could increase the chance
of a collision or accident. After adjusting the
parking brake free play, block the rear of the
ATV off the ground and spin the rear wheels.
Check to make sure there is no brake drag. If
brake drag is noticed, perform the adjustmentagain.EBU24740Brake light switches The operation of the brake light switches must be
checked and, if necessary, adjusted at the inter-
vals specified in the periodic maintenance and lu-
brication chart.
The brake light switch for the brake pedal can be
adjusted as follows, but the other brake light
switches should be adjusted by a Yamaha dealer.
1. Locknut
2. Adjusting nut
Tightening torque:
Locknut (rear brake caliper):
16 Nm (1.6 m·kgf, 11 ft·lbf)
U10P60E0.book Page 25 Thursday, June 15, 2006 4:19 PM

8-28
83. If the drive chain slack is incorrect, adjust it as
follows.
To adjust the drive chain slack
1. Loosen the axle holding nuts.2. Loosen the locknut on each side of the swing-
arm. To tighten the drive chain, turn the ad-
justing bolts in direction (a). To loosen the
drive chain, turn the adjusting bolts in direction
(b) and push the wheels forward. Turn each
adjusting bolt exactly the same amount to
maintain correct axle alignment.
NOTE:There are alignment marks on both drive chain
pullers and an alignment mark on each side of the
swingarm. Make sure to align the same alignment
1. Drive chain slack
1. Axle holding nut (upper)
2. Axle holding nut (lower)
U10P60E0.book Page 28 Thursday, June 15, 2006 4:19 PM

8-29
8 mark on both drive chain pullers with the alignment
mark on either side of the swingarm for proper
wheel alignment.CAUTION:ECB00541Improper drive chain slack will overload the en-
gine as well as other vital parts of the ATV and
can lead to drive chain slippage or breakage.
To prevent this from occurring, keep the drivechain slack within the specified limits.3. Tighten the locknuts and the axle holding nuts
to the specified torques.
NOTE:Make sure that the curved edge of the speed sen-
sor bracket touches the rear wheel hub when tight-ening the axle holding nuts.
1. Locknut
2. Drive chain slack adjusting bolt
3. Alignment marks
1. Speed sensor bracket
2. Rear wheel hub
3. Curved edge
U10P60E0.book Page 29 Thursday, June 15, 2006 4:19 PM

8-32
8
EBU24930Checking and lubricating the brake and
shift pedals The operation of the brake and shift pedals should
be checked before each ride, and the pedal pivots
should be lubricated if necessary.
Brake pedalShift pedal
EBU24961Checking the wheel bearings The front and rear wheel bearings must be
checked at the intervals specified in the periodic
maintenance and lubrication chart. If there is play
in a wheel hub or if a wheel does not turn smoothly,
have a Yamaha dealer check the wheel bearings.EBU24992Lubricating the swingarm pivots The swingarm pivots must be lubricated at the in-
tervals specified in the periodic maintenance and
lubrication chart. Recommended lubricant:
Lithium-soap-based grease (all-purpose
grease)
U10P60E0.book Page 32 Thursday, June 15, 2006 4:19 PM