2009 YAMAHA YFM350R-W brake fluid

8-21
8
EBU24251Checking the brake fluid level Insufficient brake fluid may allow air to enter the
brake system, possibly causing it to become inef-
fective.
Before riding, check that the brake fluid is above
the minimum level mark and replenish if neces-
sary. A low brake fluid level may indicate worn
brake pads and/or brake system leakage. If the
brake fluid level is low, be sure to check the brake
pads for wear and the brake system for leakage.Front brake
Rear brake1. Wear indicator groove
1. Minimum level mark
1. Minimum level mark
U10P60E0.book Page 21 Thursday, June 15, 2006 4:19 PM

8-22
8Observe these precautions:

When checking the fluid level, make sure that
the top of the brake fluid reservoir is level.
Use only the recommended quality brake fluid,
otherwise the rubber seals may deteriorate,
causing leakage and poor braking performance.
Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reaction
and lead to poor braking performance.
Be careful that water does not enter the brake
fluid reservoir when refilling. Water will signifi-
cantly lower the boiling point of the fluid and may
result in vapor lock.
Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid imme-
diately.
As the brake pads wear, it is normal for the brake
fluid level to gradually go down. However, if the
brake fluid level goes down suddenly, have a
Yamaha dealer check the cause.
EBU24290Changing the brake fluid Have a Yamaha dealer change the brake fluid at
the intervals specified in the NOTE after the peri-
odic maintenance and lubrication chart. In addi-
tion, have the oil seals of the master cylinders and
calipers as well as the brake hoses replaced at the
intervals listed below or whenever they are dam-
aged or leaking.
Oil seals: Replace every two years.
Brake hoses: Replace every four years.EBU24390Checking the front brake lever free play The brake lever free play must be checked at the
intervals specified in the periodic maintenance and
lubrication chart. The brake lever should have a
free play of zero mm (zero in) as shown. If the free
play is incorrect, have a Yamaha dealer check the
brake system. Recommended brake fluid:
DOT 4
U10P60E0.book Page 22 Thursday, June 15, 2006 4:19 PM

10-3
10
Caster angle:
6.0 °
Trail:
26.0 mm (1.02 in)Front tire:Type:
Tubeless
Size:
AT21 x 7-10
Manufacturer:
MAXXISRear tire:Type:
Tubeless
Size:
AT20 x 10-9
Manufacturer:
MAXXISLoading: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 (3.6 psi) (0.250 kgf/cm²)
Rear:
25.0 kPa (3.6 psi) (0.250 kgf/cm²)
Minimum:
Front:
22.0 kPa (3.2 psi) (0.220 kgf/cm²)Rear:
22.0 kPa (3.2 psi) (0.220 kgf/cm²)
Maximum:
Front:
28.0 kPa (4.1 psi) (0.280 kgf/cm²)
Rear:
28.0 kPa (4.1 psi) (0.280 kgf/cm²)
Front wheel:Wheel type:
Panel wheel
Rim size:
10 x 5.5ATRear wheel:Wheel type:
Panel wheel
Rim size:
9 x 8.5ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
U10P60E0.book Page 3 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