PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6
EAU37530
Battery A poorly maintained battery will corrode
and discharge quickly. The electrolyte
level, battery lead connections and
breather hose routing should be
checked before each ride and at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
To check the electrolyte level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.NOTE:Make sure that the vehicle is positioned
straight up when checking the electro-lyte level.
2. Open the seat. (See page 3-7.)
3. Check the electrolyte level in the
battery.NOTE:The electrolyte should be between theminimum and maximum level marks.4. If the electrolyte is at or below the
minimum level mark, remove the
battery band, and then lift the bat-
tery cover up.
5. Add distilled water to raise the
electrolyte to the maximum level
mark.
WARNING
EWA10770
Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.
Take care not to spill electrolyte
on the drive chain, as this may
weaken it, shorten chain life and
possibly result in an accident.
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OFCHILDREN.
1. Battery band
2. Battery cover
3. Maximum level mark
4. Minimum level mark
5. Battery
U5YPE0E0.book Page 28 Wednesday, February 23, 2005 4:22 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6
CAUTION:
ECA10640
Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly afire.
3. Turn the key to “ON” and turn on
the electrical circuits to check if the
devices operate.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU37670
Replacing a headlight bulb If a headlight bulb burns out, replace it
as follows.
1. Remove cowling C. (See page
6-5.)
2. Remove the headlight bulb holder
by pushing it inward and turning it
counterclockwise, and then re-
move the defective bulb.
WARNING
EWA10790
Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooleddown.3. Place a new bulb into position, and
then secure it with the bulb holder.
CAUTION:
ECA10660
Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of
the glass, the luminosity of the bulb,
and the bulb life will be adversely af-
fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with al-cohol or thinner.
4. Install the cowling.
5. Have a Yamaha dealer adjust the
headlight beam if necessary.
1. Headlight bulb holder
1. Do not touch the glass part of the bulb.
U5YPE0E0.book Page 30 Wednesday, February 23, 2005 4:22 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6
EAU24360
Front wheel
EAU37760
To remove the front wheel
WARNING
EWA10820
It is advisable to have a Yamaha
dealer service the wheel.
Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Place the motorcycle on the cen-
terstand.
2. Disconnect the speedometer ca-
ble from the front wheel.
3. Remove the axle nut and the
washer.4. Pull the wheel axle out, and then
remove the wheel.
CAUTION:
ECA11070
Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise thebrake pads will be forced shut.
EAU37770
To install the front wheel
1. Install the speedometer gear unit
into the wheel hub so that the pro-
jection on the wheel hub fits in ei-
ther slot of the speedometer gear
unit.2. Lift the wheel up between the fork
legs.
NOTE:
Make sure that there is enough space
between the brake pads before insert-
ing the brake disc and that the retainer
in the speedometer gear unit fits overthe slot on the fork leg.
1. Speedometer cable
1. Axle nut
2. Washer
1. Speedometer gear unit
U5YPE0E0.book Page 32 Wednesday, February 23, 2005 4:22 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
63. Insert the wheel axle, and then in-
stall the washer and the axle nut.
4. Take the motorcycle off the center-
stand so that the front wheel is on
the ground.
5. Tighten the axle nut to the speci-
fied torque.
NOTE:When tightening the axle nut, hold the
wheel axle with a wrench to keep it fromturning.6. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
7. Connect the speedometer cable.
EAU25080
Rear wheel
EAU37781
To remove the rear wheel
WARNING
EWA10820
It is advisable to have a Yamaha
dealer service the wheel.
Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Loosen the axle nut.
2. Loosen the locknut and the drive
chain slack adjusting nut on both
ends of the swingarm.
1. Retainer
2. SlotTightening torque:
Axle nut:
40 Nm (4.0 m·kgf, 29 ft·lbf)
1. Axle nut
2. Washer
3. Drive chain slack adjusting nut
4. Locknut
U5YPE0E0.book Page 33 Wednesday, February 23, 2005 4:22 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
67. Take the motorcycle off the center-
stand so that the rear wheel is on
the ground.
8. Tighten the brake torque rod nut
and axle nut to the specified
torques.
NOTE:When tightening the axle nut, hold the
wheel axle with a wrench to keep it fromturning.
9. Insert a new cotter pin.
10. Adjust the brake pedal free play.
(See page 6-19.)
WARNING
EWA10660
After adjusting the brake pedal free
play, check the operation of thebrake light.
EAU25870
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
Tightening torques:
Brake torque rod nut:
19 Nm (1.9 m·kgf, 14 ft·lbf)
Axle nut:
60 Nm (6.0 m·kgf, 43 ft·lbf)
U5YPE0E0.book Page 35 Wednesday, February 23, 2005 4:22 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6
EAU37620
Troubleshooting charts Starting problems or poor engine performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is
enough fuel.
There is
no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the
electric starter or the
kickstarter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wet
Dry
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start. Have a
Yamaha dealer check the vehicle.The engine does not start.
Check the battery.Open the throttle halfway and
operate the electric starter.
Operate the
electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the electrolyte and battery
lead connections, and charge the
battery if necessary.
U5YPE0E0.book Page 36 Wednesday, February 23, 2005 4:22 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6Engine overheating
WARNING
EWA10400
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
U5YPE0E0.book Page 37 Wednesday, February 23, 2005 4:22 PM
MOTORCYCLE CARE AND STORAGE
7-2
7After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain, near the sea oron salt-sprayed roadsSince sea salt or salt sprayed on roads
during winter are extremely corrosive in
combination with water, carry out the
following steps after each ride in the
rain, near the sea or on salt-sprayed
roads.NOTE:Salt sprayed on roads in the winter mayremain well into spring.
1. Clean the motorcycle with cold wa-
ter and a mild detergent, after the
engine has cooled down.
CAUTION:
ECA10790
Do not use warm water since it in-
creases the corrosive action of thesalt.
2. Apply a corrosion protection spray
on all metal, including chrome- and
nickel-plated, surfaces to prevent
corrosion.
After cleaning
1. Dry the motorcycle with a chamois
or an absorbing cloth.
2. Immediately dry the drive chain
and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally in-
duced discoloring of stainless-
steel exhaust systems can be re-
moved through polishing.)
4. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.5. Use spray oil as a universal clean-
er to remove any remaining dirt.
6. Touch up minor paint damage
caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely
before storing or covering it.
WARNING
EWA10930
Make sure that there is no oil or
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or ac-
etone, and wash the tires with
warm water and a mild deter-
gent.
Before operating the motor-
cycle test its braking perfor-mance and cornering behavior.
CAUTION:
ECA10800
Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.
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