Page 8 of 224

Axle boots .......................................... 8-36
Checking the spark plugs .................. 8-37
Air filter maintenance.......................... 8-38
Cleaning the air filter case check hoses ................................................ 8-42
Cleaning the spark arrester ................ 8-43
Valve clearance .................................. 8-45
Brakes ................................................ 8-45
Checking the front and rear brake pads.................................................. 8-45
Checking the parking brake pads ...... 8-46
Checking the brake and YCC-S
clutch fluid levels .............................. 8-46
Brake and YCC-S clutch fluid
replacement...................................... 8-48
YCC-S clutch ..................................... 8-48
Checking the brake pedal .................. 8-49
Checking the accelerator pedal ......... 8-49
Parking brake lever free play adjustment........................................ 8-50
Brake light switch ............................... 8-51
Cable inspection and lubrication........ 8-51
Pedal lubrication................................. 8-52 Checking the stabilizer bushes...........8-52
Upper and lower arm pivot
lubrication (left and right) ..................8-53
Rear knuckle upper and lower pivot lubrication (left and right) ..................8-54
Drive shaft universal joint lubrication .........................................8-54
Steering shaft lubrication....................8-54
Wheel removal ....................................8-55
Checking and tightening the bead lock (YXZ10YESJ) .............................8-55
Tire replacement .................................8-56
Wheel installation................................8-57
Battery ................................................8-57
Jump-starting .....................................8-61
Fuse replacement ...............................8-63
Headlights...........................................8-65
Headlight beam adjustment ...............8-65
Tail/brake light ....................................8-66
Interior lights (for equipped models) ...8-66
Troubleshooting ..................................8-66
Troubleshooting charts .......................8-68
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8-45
8
8. Install the tailpipe cover bolts and tightenthem to the specified torque.EBU32460Valve clearanceThe correct valve clearance changes with
use, resulting in improper fuel/air supply or
engine noise. To preven t this, the valve clear-
ance must be adjusted regularly. This adjust-
ment however, should be left to a
professional Yamaha service technician.EBU32470BrakesReplacement of brake components requires
professional knowledge. Brake service
should be performed by a Yamaha dealer.
WARNING
EWB02572Operating with improperly serviced or ad-
justed brakes could lead to a loss in brak-
ing ability and an accident. EBU35150Checking the front and rear brake padsCheck each brake pad for damage and mea-
sure the lining thickness. If a brake pad is
damaged or if the lining thickness is less than
1.0 mm (0.04 in), have a Yamaha dealer re-
place the brake pads as a set.
The wheels need to be removed to check the
brake pads. (See pages 8-55, 8-57 for wheel
removal and installation procedures.)
Tightening torque: Tailpipe cover bolt:8 N·m (0.8 kgf·m, 5.9 lb·ft)
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8
Be careful that water or dust does not
enter the brake or YCC-S clutch fluid
reservoir when refilling. Water will signif-
icantly lower the boiling point of the fluid
and may result in vapor lock. NOTICEECB01161Brake fluid may damage painted surfaces
or plastic parts. Always clean up spilled
fluid immediately. As the brake pads wear, it is normal for the
brake fluid level to gradually go down. A low
brake fluid level may indicate worn brake
pads or brake system l eakage; therefore, be
sure to check the brake pads for wear and the
brake system for leakage. A low YCC-S
clutch fluid level may indicate YCC-S clutch
system leakage; therefore, be sure to check
the YCC-S clutch system for leakage. If the
brake or YCC-S clutch fluid level goes down suddenly, have a Yamaha dealer check and
repair the vehicle before any further opera-
tion.
EBU36550Brake and YCC-S clutch fluid replace-
mentComplete fluid replacement should be done
only by trained Yamaha service personnel.
Have a Yamaha dealer replace the following
components during periodic maintenance or
when they are damaged or leaking.
Replace the oil seals every two years.
Replace the brake and YCC-S clutch hoses
every four years.EBU36540YCC-S clutchThis model is equipped with a hydraulic
clutch, therefore, it is necessary to check the
YCC-S clutch fluid level and check the hy-
draulic system for leakage before each drive.
If the YCC-S clutch plates wear out, shifting
becomes rough or clutch slippage will occur,
UB0F7AE0.book Page 48 Monday, November 6, 2017 2:30 PM