Page 8 of 188

Hills ................................................ 7-20
Uphill.............................................. 7-21
Downhill ......................................... 7-22
Rough terrain................................. 7-23
Pavement ...................................... 7-23
Water ............................................. 7-23
Loose terrain/slippery terrain......... 7-24
Brush or wooded areas ................. 7-25
Encountering obstacles ................. 7-25
PERIODIC MAINTENANCE AND
ADJUSTMENT .................................. 8-1 Owner’s manual and tool kit ............ 8-2
Periodic maintenance chart for the emission control system .......... 8-4
General maintenance and lubrication chart ............................. 8-5
Hood ................................................ 8-7
Console ........................................... 8-9
Engine oil and oil filter cartridge .... 8-10
Final gear oil .................................. 8-15
Differential gear oil......................... 8-18
Coolant .......................................... 8-22 Axle boots ......................................8-23
Spark plug inspection ....................8-24
Cleaning the air filter element ........8-27
Drive select lever box check
hose .............................................8-32
V-belt cooling duct check hose ......8-32
V-belt case drain plug ....................8-33
Cleaning the spark arrester ...........8-33
Valve clearance .............................8-34
Brakes ............................................8-35
Checking the front and rear brake pads .............................................8-35
Checking the parking brake pads .............................................8-36
Checking the brake fluid level........8-36
Brake fluid replacement .................8-37
Checking the brake pedal ..............8-38
Parking brake lever free play adjustment ...................................8-38
Brake light switch adjustment ........8-40
Cable inspection and lubrication....8-41
Brake pedal and accelerator pedal lubrication.....................................8-41
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8-35
Brakes
Replacement of brake components requires
professional knowledge. Brake service should
be performed by a Yamaha dealer.
WARNING
Operating with improperly serviced or ad-
justed brakes could lead to a loss in brak-
ing ability and an accident.5B410019Checking the front and rear brake pads
Each brake pad is provided with wear indica-
tor grooves, which allow you to check the
brake pad wear without having to disassem-
ble the brake. To check the brake pad wear,
check the wear indicator grooves. If a brake
pad has worn to the point that the wear indica-
tor grooves have almost disappeared, have a
Yamaha dealer replace the brake pads as a
set. The wheels need to be removed to check the
brake pads. (See pages 8-44–8-46 for wheel
removal and installation procedures.)
1. Brake pad wear indicator groove
1
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8-37
WARNING
Improper maintenance can result in loss of
braking ability. Observe these precautions:●
Insufficient brake fluid may allow air to
enter the brake system, reducing brak-
ing performance.
●
Clean the filler cap before removing.
Use only DOT 4 brake fluid from a
sealed container.
●
Use only the specified brake fluid; oth-
erwise, the rubber seals may deterio-
rate, causing leakage.
●
Refill with the same type of brake fluid.
Adding a brake fluid other than DOT 4
may result in a harmful chemical reac-
tion.
●
Be careful that water does not enter
the brake fluid reservoir when refilling.
Water will significantly lower the boil-
ing point of the fluid and may result in
vapor lock.
NOTICEBrake 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 and/or brake system leakage; therefore,
be sure to check the brake pads for wear and
the brake system for leakage. If the brake fluid
level goes down suddenly, have a Yamaha
dealer check the cause before further riding.EVU00860Brake fluid replacement
Complete 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 hoses every four years.
1RB7A_EE.book Page 37 Tuesday, April 24, 2012 9:07 AM