2002 YAMAHA YFM660R battery

Lubricating the drive chain ................ 8-83
Cable inspection and lubrication ....... 8-87
Brake and shift pedal/brake and
clutch lever lubrication ..................... 8-87
Front upper and lower arm pivot
lubrication ......................................... 8-89
Rear arm pivot lubrication .................. 8-91
Wheel removal .................................. 8-95
Wheel installation .............................. 8-97
Battery ............................................... 8-99
Battery maintenance ....................... 8-103
Fuse replacement ............................ 8-105
Replacing a headlight bulb ............... 8-107
Tail/brake light bulb replacement ..... 8-117
Troubleshooting ............................... 8-119
Troubleshooting chart ...................... 8-121
CLEANING AND STORAGE .................. 9-1
A. CLEANING ...................................... 9-1
B. STORAGE ...................................... 9-7
9
SPECIFICATIONS ................................ 10-1
CONVERSION TABLE .......................... 11-1
1011
U5LP61.book Page 3 Monday, August 27, 2001 3:49 PM

4-11 1. Light switch “OFF/ /”
2. Engine stop switch “/”
3. Start switch “”
1. Contacteur d’éclairage “OFF/ /”
2. Coupe-circuit du moteur “/”
3. Contacteur du démarreur “”
1. Interruptor de luces “OFF/ /”
2. Interruptor de paro del motor “/”
3. Interruptor de arranque “”
EBU00053
Handlebar switches
EBU01009
Light switch “OFF/ /”
Turn the switch to the “” position to switch on
the low beam and the taillight.
Turn the switch to the “” position to switch on
the high beam and the taillight.
Turn the switch to the “OFF” position to switch off
the headlights and the taillight.CAUTION:_ Do not use the headlights with the engine
turned off for more than thirty minutes. The
battery may discharge to the point that the
starter motor will not operate properly. If this
should happen, remove the battery and re-
charge it. _
U5LP61.book Page 11 Monday, August 27, 2001 3:49 PM

6-7
6. Completely close the throttle lever and start
the engine by pushing the start switch.NOTE:If the engine fails to start, release the start switch,
then push it again. Pause a few seconds before
the next attempt. Each cranking should be as short
as possible to preserve battery energy. Do not
crank the engine more than 10 seconds on each
attempt. 7. If the engine is started with the starter (choke)
in position
1, the starter (choke) should be
returned to position
2 to warm up the engine.
If the engine is started with the starter (choke)
in position
2, keep the starter (choke) in this
position to warm up the engine.
8. Continue warming up the engine until it idles
smoothly and return the starter (choke) to po-
sition
3 before riding.CAUTION:
See the “Engine break-in” section prior to op-
erating engine for the first time.
U5LP61.book Page 7 Monday, August 27, 2001 3:49 PM

8-99
EBU00381
Battery
This machine is equipped with a sealed-type bat-
tery. Therefore it is not necessary to check the
electrolyte or add distilled water in the battery. If
the battery seems to have discharged, consult a
Yamaha dealer.CAUTION:
Do not try to remove the sealing caps of the
battery cells. You may damage the battery.
U5LP61.book Page 99 Monday, August 27, 2001 3:49 PM

8-101
WARNING
Battery electrolyte is poisonous and danger-
ous, causing severe burns, etc. It contains sul-
furic acid. Avoid contact with skin, eyes or
clothing.
Antidote:

EXTERNAL: Flush with water.


INTERNAL: Drink large quantities of water
or milk. Follow with milk of magnesia, beat-
en egg or vegetable oil. Call a physician
immediately.


EYES: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of
ignition away. Ventilate when charging or us-
ing in an enclosed space. Always shield your
eyes when working near batteries. KEEP OUT
OF REACH OF CHILDREN.
U5LP61.book Page 101 Monday, August 27, 2001 3:49 PM

8-103
EBU00385
Battery maintenance
1. When the machine is not used for a month or
longer, remove the battery and store it in a
cool, dark place. Completely recharge the
battery before reinstallation.CAUTION:
A special battery charger (constant voltage/
ampere or constant voltage) is required for re-
charging a sealed-type battery. Using a con-
ventional battery charger may shorten the
battery life. 2. Always make sure the connections are cor-
rect when putting the battery back in the ma-
chine.
U5LP61.book Page 103 Monday, August 27, 2001 3:49 PM

8-121
EBU00724
Troubleshooting chart
Starting problems or poor engine performance1. Fuel
Check if there is fuel
in the fuel tank.There is fuel.Turn the fuel cock
lever to “OFF”.No fuel.Fuel cock is
clogged.
Clean the
fuel cock. Some fuel.Turn the fuel cock
lever to “RES”.Restart the engine.
No fuel.Supply fuel.
2. Compression
Use the electric
starter to see if
there is compression.There is compression.
Compression normal.
No compression.Ask a Yamaha dealer to
inspect.
3. Ignition
Remove the
spark plug and
check electrodes.WetWipe clean with dry cloth.
DryAttach spark plug cap and
ground to chassis.Use the
electric starter.Spark is good.Ignition system is
normal.
Spark is weak.
Adjust the spark plug gap
or replace the spark plug. No spark.
Ask a Yamaha dealer to
inspect. 4. Battery
Use the electric starter.Engine turns over
quickly.Battery is good.
Engine turns over
slowly.Check the connections.Check the
fuel flow.
Turn the fuel cock
lever to “ON”.
Remove the fuel hose
from the fuel cock.
U5LP61.book Page 121 Monday, August 27, 2001 3:49 PM

9-9
5. Block up the frame to raise all wheels off the
ground.
6. Tie a plastic bag over the exhaust pipe outlet
to prevent moisture from entering.
7. If storing in a humid or salt-air atmosphere,
coat all exposed metal surfaces with a light
film of oil. Do not apply oil to any rubber parts
or the seat cover.
8. Remove the battery and charge it. Store it in
a dry place and recharge it once a month. Do
not store the battery in an excessively warm
or cold place (less than 0°C or more than
30°C).NOTE:Make any necessary repairs before storing the
machine.
U5LP61.book Page 9 Monday, August 27, 2001 3:49 PM