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4
PERIODIC MAINTENANCE AND
MINOR REPAIR..............................................35
Tool kit ........................................................36
Periodic maintenance/lubrication ...........37
Front cowlings and panels removal/
installation .................................................39
Side cover removal/installation ..............41
Engine oil ...................................................42
Air filter ......................................................45
Throttle cable adjustment ........................47
Carburetor adjustment .............................48
Idle speed adjustment ..............................48
Spark plug inspection ..............................49
Front brake adjustment ............................51
Rear brake adjustment .............................53
Brake light switch adjustment .................54
Checking the front brake pads ................54
Checking the rear brake shoes ................55
Checking the brake fluid level .................55
Changing the brake fluid..........................57
Drive chain slack check ............................58Drive chain slack adjustment ..................59
Drive chain lubrication .............................61
Brake lever and pedal ...............................62
Center and sidestand ...............................62
Front fork inspection ................................63
Battery ........................................................64
Replenishing the battery fluid .................66
Fuse replacement .....................................67
Troubleshooting ........................................68
CLEANING AND STORAGE .........................69
Cleaning .....................................................69
Storage ......................................................69
SPECIFICATIONS ..........................................71
5SD O/M-1 9/4/01 2:49 PM Page 4 (1,1)
Page 42 of 75
EAH48201*Engine oil
1. Oil level measurement
a. Place the motorcycle on the center-
stand. Warm up the engine for several
minutes.EUU03901NOTE:
Be sure the motorcycle is positioned
straight up when checking the oil level. A
slight tilt toward the side can result in false
readings.b. With the engine stopped, wait a few
minutes and then remove the oil level
gauge.
c. Wipe the oil level gauge off with a
clean rag and insert it in the filler hole
without screwing it in.
42
q
w
e
1. Oil level gauge 2. Upper level
3. Lower level
5SD O/M-2 9/4/01 3:02 PM Page 42 (1,1)
Page 56 of 75

Observe these precautions:
8When checking the fluid level, make
sure that the top of the master cylin-
der is level by turning the handlebars.
8Use only the recommended quality
brake fluid, otherwise the rubber seals
may deteriorate, causing leakage and
poor braking performance.NOTE:
If DOT 4 is not available, DOT 3 can be
used.8Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and lead to
poor braking performance.8Be careful that water does not enter
the master cylinder when refilling.
Water will significantly lower the boil-
ing point of the fluid and may result in
vapor lock.
8Brake fluid may deteriorate painted
surfaces or plastic parts. Always clean
up spilled fluid immediately.
8As 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.
56
Recommended brake fluid: DOT 4
5SD O/M-3 9/4/01 2:50 PM Page 56 (1,1)