2012 YAMAHA YFM350R-W suspension

Checking and lubricating the brake and
shift pedals ............................................. 8-34
Checking the wheel hub bearings ............ 8-35
Lubricating the swingarm pivots ............... 8-35
Lubricating the rear suspension relay arm
and connecting arm pivoting points ........ 8-35
Lubricating the upper and lower arm
pivots ...................................................... 8-36
Lubricating the steering shaft ................... 8-37
Battery ...................................................... 8-38
Replacing a fuse ...................................... 8-40
Headlight bulb .......................................... 8-41
Headlight beam ........................................ 8-41
Replacing the tail/brake light bulb ............ 8-41
Replacing a turn signal light bulb ............. 8-42
Replacing the license plate light bulb ....... 8-42
Auxiliary light bulb .................................... 8-44
Removing a wheel .................................... 8-44
Installing a wheel ...................................... 8-44
Troubleshooting ....................................... 8-45
Troubleshooting chart .............................. 8-46
CLEANING AND STORAGE .......................... 9-1
Cleaning ..................................................... 9-1
Storage ....................................................... 9-2SPECIFICATIONS .......................................10-1
CONSUMER INFORMATION.......................11-1
Identification numbers ...............................11-1
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4-15
4
WARNING
EWB00400Always adjust the shock absorber assemblies
on the left and right side to the same setting.
Uneven adjustment can cause poor handling
and loss of stability, which could lead to an ac-
cident.Adjust the spring preload as follows.
Turn the spring preload adjusting ring in direction
(a) to increase the spring preload and thereby
harden the suspension, and in direction (b) to de-
crease the spring preload and thereby soften the
suspension.
Align the appropriate notch in the adjusting ring
with the position indicator on the shock absorber.
TIPA special wrench can be obtained at a Yamaha
dealer to make this adjustment.1. Spring preload adjusting ring
2. Position indicator
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4-16
4
EBU19044Adjusting the rear shock absorber as-
sembly The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
NOTICEECB01090Never turn the adjusting mechanism beyond
the minimum and maximum settings.Adjust the spring preload as follows.
1. Loosen the locknut.
2. Turn the spring preload adjusting nut in direc-
tion (a) to increase the spring preload and
thereby harden the suspension, and in direc-
tion (b) to decrease the spring preload and
thereby soften the suspension.
1. Special wrenchSpring preload setting:
Minimum (soft):
1
Standard:
3
Maximum (hard):
5
1. Locknut
2. Spring preload adjusting nut
U10P70E0.book Page 16 Thursday, July 21, 2011 8:51 AM

8-7
8
14*Chassis fastenersMake sure that all nuts, bolts, and screws are
properly tightened.√√√√√
15*Shock absorber as-
sembliesCheck operation and correct if necessary.
Check for oil leakage and replace if necessary.√√√
16*Rear suspension re-
lay arm and con-
necting arm
pivoting pointsCheck operation and correct if necessary.
Lubricate with lithium-soap-based grease.√√√√
17*Steering shaftLubricate with lithium-soap-based grease.√√√
18*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√
19 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
20Engine oil filter ele-
mentClean or replace if necessary.√√√
21 Engine oil strainerClean.√√√
22*Moving parts and
cablesLubricate.√√√√ 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 320U10P70E0.book Page 7 Thursday, July 21, 2011 8:51 AM

8-35
8
EBU24963Checking the wheel hub bearings The front and rear wheel hub 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 hub bear-
ings.EBU24995Lubricating the swingarm pivots The swingarm pivots must be lubricated by a
Yamaha dealer at the intervals specified in the pe-
riodic maintenance and lubrication chart.
EBU25004Lubricating the rear suspension relay
arm and connecting arm pivoting
points The rear suspension relay arm and connecting
arm pivoting points must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.TIPFor parts equipped with a grease nipple, use a
grease gun.Recommended lubricant:
Lithium-soap-based grease
Recommended lubricant:
Lithium-soap-based grease
U10P70E0.book Page 35 Thursday, July 21, 2011 8:51 AM

10-3
10
Trail:
26.0 mm (1.02 in)Front tire:Type:
Tubeless
Size:
AT21 x 7-10
Manufacturer/model:
MAXXIS/C9207Rear tire:Type:
Tubeless
Size:
AT20 x 10-9
Manufacturer/model:
MAXXIS/M976Loading:Maximum loading limit:
100.0 kg (220 lb)
(Total weight of rider, cargo, accessories, and tongue)Tire air pressure (measured on cold tires):Recommended:
Front:
25.0 kPa (0.250 kgf/cm², 3.6 psi)
Rear:
25.0 kPa (0.250 kgf/cm², 3.6 psi)
Minimum:
Front:
22.0 kPa (0.220 kgf/cm², 3.2 psi)
Rear:
22.0 kPa (0.220 kgf/cm², 3.2 psi)
Front wheel:Wheel type:
Panel wheel
Rim size:
10 x 5.5ATRear wheel:Wheel type:
Panel wheel
Rim size:
9 x 8.0ATFront brake:Type:
Disc brake
Operation:
Right hand operation
Specified brake fluid:
DOT 4Rear brake:Type:
Disc brake
Operation:
Right foot operation
Specified brake fluid:
DOT 4Front suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
200 mm (7.9 in)
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10-4
10
Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
210 mm (8.3 in)Electrical system:Ignition system:
DC CDI
Charging system:
AC magnetoBattery:Model:
YTZ10S
Voltage, capacity:
12 V, 8.6 AhHeadlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 35.0/35.0 W × 1
Tail/brake light:
12 V, 5.0/21.0 W × 1
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
Auxiliary light:
12 V, 5.0 W × 1License plate light:
12 V, 5.0 W × 1
Neutral indicator light:
12 V, 1.7 W × 1
High beam indicator light:
LED
Turn signal indicator light:
LED
Reverse indicator light:
12 V, 1.7 W × 1
Fuses:Main fuse:
15.0 A
Accessory fuse:
7.5 A
U10P70E0.book Page 4 Thursday, July 21, 2011 8:51 AM

LLabel locations ............................................................... 1-1
License plate light bulb, replacing ................................ 8-42
Light switch .................................................................... 4-4MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-1NNeutral indicator light ..................................................... 4-2OOwner’s manual and tool kit ........................................... 8-2PParking ........................................................................... 6-7
Parking brake free play, adjusting ................................ 8-26
Parking brake lever ........................................................ 4-7
Parking on a slope ......................................................... 6-7
Part locations ................................................................. 3-1RReverse indicator light .................................................... 4-2
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-14
Shifting ........................................................................... 6-4
Shift pedal ...................................................................... 4-8
Shock absorber assemblies, adjusting the front .......... 4-14
Shock absorber assembly, adjusting the rear .............. 4-16
Spark arrester, cleaning ............................................... 8-18
Spark plug, checking ...................................................... 8-9
Specifications ............................................................... 10-1Speed limiter .................................................................. 4-5
Speedometer .................................................................. 4-2
Starter (choke) ............................................................. 4-12
Start switch ..................................................................... 4-3
Steering lock ................................................................ 4-13
Steering shaft, lubricating ............................................. 8-37
Storage ........................................................................... 9-2
Suspension, lubricating the upper and
lower arm pivots ......................................................... 8-36
Suspension relay arm and connecting arm pivoting
points, lubricating the rear ......................................... 8-35
Swingarm pivots, lubricating ........................................ 8-35
TTail/brake light bulb, replacing ..................................... 8-41
Throttle lever ........................................................... 4-4, 5-3
Throttle lever free play, adjusting ................................. 8-21
Tires ............................................................................... 5-4
Troubleshooting ........................................................... 8-45
Troubleshooting chart .................................................. 8-46
Turn signal indicator light ............................................... 4-2
Turn signal light bulb, replacing ................................... 8-42
Turn signal switch .......................................................... 4-4VValve clearance ............................................................ 8-22
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-35
Wheel, installing ........................................................... 8-44
Wheel, removing .......................................................... 8-44
U10P70E0.book Page 2 Thursday, July 21, 2011 8:51 AM