2009 YAMAHA YFM350R-W clutch

8-26
8
NOTE:The brake light switch is properly adjusted when
the brake light comes on just before braking takeseffect.
Turn the adjusting nut while holding the brake light
switch in place. To make the brake light come on
earlier, turn the adjusting nut in direction (a). To
make the brake light come on later, turn the adjust-
ing nut in direction (b).
EBU24820Adjusting the clutch lever free play The clutch lever free play must be checked and, if
necessary, adjusted at the intervals specified in the
periodic maintenance and lubrication chart.
The clutch lever free play should measure 5.0–
10.0 mm (0.20–0.39 in) as shown. If the free play
is incorrect, adjust it as follows.
1. Loosen the locknut at the clutch lever.
1. Brake light switch
2. Brake light switch adjusting nut
1. Locknut
2. Clutch lever free play adjusting bolt
3. Clutch lever free play
U10P60E0.book Page 26 Thursday, June 15, 2006 4:19 PM

8-27
8 2. To increase the clutch lever free play, turn the
adjusting bolt at the clutch lever in direction
(a), and to decrease it, turn the bolt in direction
(b).
3. Tighten the locknut at the clutch lever.
If the specified free play cannot be obtained,
proceed with the following steps.
4. Loosen the locknut at the clutch lever.
5. Fully turn the adjusting bolt at the clutch lever
in direction (a) to loosen the clutch cable.
6. Loosen the locknut at the crankcase.
7. To increase the clutch lever free play, turn the
adjusting nut at the crankcase in direction (a),
and to decrease it, turn the nut in direction (b).8. Tighten the locknut at the crankcase and the
clutch lever.
NOTE:If the specified free play cannot be obtained as de-
scribed above or if the clutch does not operate cor-
rectly, have a Yamaha dealer check the internalclutch mechanism.EBU28142Drive chain slack The drive chain slack should be checked before
each ride and adjusted if necessary.
To check the drive chain slack
1. Place the ATV on a level surface.NOTE:When checking and adjusting the drive chain
slack, there should be no weight on the ATV andall tires must be touching the ground.
2. Move the ATV back and forth to locate the
tightest portion of the drive chain, and then
measure the drive chain slack as shown.
1. Locknut
2. Clutch lever free play adjusting nut (crankcase)
Drive chain slack:
25.0–35.0 mm (0.98–1.38 in)
U10P60E0.book Page 27 Thursday, June 15, 2006 4:19 PM

8-31
8 essary. If a cable is damaged or does not move
smoothly, have a Yamaha dealer check or replace
it.
WARNING
EWB02130Inspect cables frequently and replace if dam-
aged. Corrosion can result when the cable
sheaths become damaged, and cables can
also become frayed or kinked, which could re-
strict the operation of controls and lead to anaccident or injury.EBU24920Checking and lubricating the brake and
clutch levers The operation of the brake and clutch levers
should be checked before each ride, and the lever
pivots should be lubricated if necessary.Brake lever
Clutch lever Recommended lubricant:
Engine oil
Recommended lubricant:
Lithium-soap-based grease (all-purpose
grease)U10P60E0.book Page 31 Thursday, June 15, 2006 4:19 PM

10-2
10
Engine oil quantity:
Without oil filter element replacement:
2.50 L (2.64 US qt) (2.20 Imp.qt)
With oil filter element replacement:
2.60 L (2.75 US qt) (2.29 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
9.0 L (2.38 US gal) (1.98 Imp.gal)
Fuel reserve amount:
2.7 L (0.71 US gal) (0.59 Imp.gal)Carburetor:Manufacturer:
MIKUNI
Type x quantity:
BSR36 x 1Spark plug (s):Manufacturer/model:
NGK/DR8EA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-disc
Operation:
Left hand operation
Transmission:Primary reduction system:
Spur gear
Primary reduction ratio:
76/24 (3.166)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
38/13 (2.923)
Transmission type:
Constant mesh 6-speed.forward, 1-speed.reverse
Operation:
Left foot operation
Gear ratio:
1st:
36/16 × 20/27 × 29/18 (2.685)
2nd:
33/20 × 20/27 × 29/18 (1.969)
3rd:
29/23 × 20/27 × 29/18 (1.504)
4th:
27/26 × 20/27 × 29/18 (1.239)
5th:
25/28 × 20/27 × 29/18 (1.065)
6th:
23/29 × 20/27 × 29/18 (0.946)
Reverse gear:
33/16 × 33/10 (6.806)Chassis:Frame type:
Steel tube frame
U10P60E0.book Page 2 Thursday, June 15, 2006 4:19 PM

INDEX
AAccessories and loading ................................................ 6-9
Air filter element, cleaning ............................................ 8-13
Auxiliary light bulb ........................................................ 8-40BBattery .......................................................................... 8-35
Brake and clutch levers, checking and lubricating ....... 8-31
Brake and shift pedals, checking and lubricating ......... 8-32
Brake fluid, changing ................................................... 8-22
Brake fluid level, checking ........................................... 8-21
Brake lever ..................................................................... 4-6
Brake lever free play, checking the front ...................... 8-22
Brake light switches ..................................................... 8-25
Brake pads, checking the front and rear ...................... 8-20
Brake pedal .................................................................... 4-7
Brake pedal position, checking .................................... 8-23
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-30
Carburetor, adjusting ................................................... 8-17
Chassis fasteners .......................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-6
Clutch lever free play, adjusting ................................... 8-26DDrive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-30
Drive chain slack .......................................................... 8-27Drive select lever ........................................................... 4-9
Drive select lever and driving in reverse ........................ 6-3
EEngine break-in .............................................................. 6-6
Engine, cold start ........................................................... 6-1
Engine idling speed ..................................................... 8-17
Engine oil ....................................................................... 5-3
Engine oil and oil filter element .................................... 8-10
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-3FFuel ....................................................................... 4-10, 5-3
Fuel cock ..................................................................... 4-11
Fuel tank cap ................................................................. 4-9
Fuses, replacing .......................................................... 8-37HHandlebar switches ....................................................... 4-3
Hazard switch ................................................................ 4-4
Headlight beam ............................................................ 8-38
Headlight bulb .............................................................. 8-38
High beam indicator light ............................................... 4-2
Horn switch .................................................................... 4-4IIdentification numbers .................................................. 11-1
Indicator lights ................................................................ 4-2
Instruments, lights and switches .................................... 5-7LLabel locations ............................................................... 2-1
U10P60E0.book Page 1 Thursday, June 15, 2006 4:19 PM