battery YAMAHA YFM80R 2008 Owners Manual

EBU17420
TABLE OF CONTENTS
SAFETY INFORMATION .............................. 1-1
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 2-1
DESCRIPTION .............................................. 3-1
Left view ..................................................... 3-1
Right view................................................... 3-1
Controls and instruments ........................... 3-2
INSTRUMENT AND CONTROL
FUNCTIONS .................................................. 4-1
Main switch ............................................... 4-1
Indicator light ............................................. 4-1
Handlebar switches ................................... 4-2
Throttle lever ............................................. 4-2
Speed limiter and air intake restrictor
plate ........................................................ 4-3
Front brake lever ....................................... 4-4
Brake pedal and rear brake lever .............. 4-5
Parking brake ............................................ 4-6
Shift pedal ................................................. 4-6
Fuel tank cap ............................................. 4-7
Fuel ........................................................... 4-7
Fuel cock ................................................... 4-8Choke ...................................................... 4-10
Seat ......................................................... 4-10
PRE-OPERATION CHECKS ..........................5-1
Pre-operation check list ............................. 5-1
Fuel ............................................................ 5-3
Engine oil ................................................... 5-3
Final gear oil .............................................. 5-3
Front and rear brakes ................................ 5-3
Throttle lever .............................................. 5-4
Tires ........................................................... 5-4
Measuring the tire pressure ....................... 5-5
Tire wear limit ............................................ 5-6
Chassis fasteners ...................................... 5-6
Instruments, lights and switches ................ 5-6
Battery ....................................................... 5-6
OPERATION...................................................6-1
Starting a cold engine ................................ 6-1
Starting a warm engine .............................. 6-3
Shifting ....................................................... 6-3
Engine break-in .......................................... 6-5
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-6
Accessories and loading ............................ 6-7

RIDING YOUR ATV ...................................... 7-1
GETTING TO KNOW YOUR ATV.............. 7-2
RIDE WITH CARE AND GOOD
JUDGEMENT ...........................................7-2
BE CAREFUL WHERE YOU RIDE ............ 7-9
TURNING YOUR ATV ............................. 7-13
CLIMBING UPHILL .................................. 7-14
RIDING DOWNHILL................................. 7-17
CROSSING A SLOPE.............................. 7-18
CROSSING THROUGH SHALLOW
WATER ..................................................7-19
RIDING OVER ROUGH TERRAIN .......... 7-20
SLIDING AND SKIDDING ........................ 7-21
WHAT TO DO IF... ................................... 7-22
WHAT TO DO... ....................................... 7-22
PERIODIC MAINTENANCE AND MINOR
REPAIR .......................................................... 8-1
Owner’s manual and tool kit ...................... 8-1
Periodic maintenance chart for the
emission control system .......................... 8-3
General maintenance and lubrication
chart ........................................................ 8-5
Checking the spark plug ............................ 8-8
Engine oil .................................................. 8-9
Final gear oil ............................................ 8-12
Cleaning the air filter element ................. 8-13
Removing the air intake restrictor plate ... 8-17
Cleaning the spark arrester ..................... 8-17Adjusting the carburetor ........................... 8-18
Adjusting the engine idling speed ............ 8-18
Checking the throttle cable free play ....... 8-19
Timing chain ............................................ 8-20
Valve clearance ....................................... 8-20
Checking the front and rear brake
shoes .....................................................8-20
Adjusting the front brake lever free
play ........................................................8-21
Adjusting the rear brake lever and brake
pedal free play .......................................8-23
Adjusting the clutch free play ................... 8-26
Checking and lubricating the cables ........ 8-26
Checking and lubricating the front and
rear brake levers ....................................8-27
Checking and lubricating the brake and
shift pedals .............................................8-28
Checking the wheel hub bearings ............ 8-28
Lubricating the front knuckle pivots ......... 8-28
Lubricating the steering shaft ................... 8-28
Battery ..................................................... 8-29
Replacing the fuse ................................... 8-31
Removing a wheel ................................... 8-32
Installing a wheel ..................................... 8-33
Troubleshooting ....................................... 8-33
Troubleshooting chart .............................. 8-35
CLEANING AND STORAGE ..........................9-1
Cleaning ..................................................... 9-1

5-2
1
2
3
45
6
7
8
9
10
11

Rear brake

Check operation, and correct if necessary.

Lubricate cable if necessary.

Check lever and pedal free play, and adjust if necessary.5-3, 8-20, 8-23
Throttle lever

Make sure that operation is smooth. Lubricate cable and lever hous-
ing if necessary.

Check cable free play, and adjust if necessary.5-4, 8-19
Control cables

Make sure that operation is smooth. Lubricate if necessary. 8-26
Wheels and tires

Check wheel condition, and replace if damaged.

Check tire condition and tread depth. Replace if necessary.

Check air pressure. Correct if necessary.5-4, 5-5, 5-6
Brake and shift pedals

Make sure that operation is smooth. Lubricate pedal pivoting points
if necessary.8-28
Brake levers

Make sure that operation is smooth. Lubricate lever pivoting points
if necessary.8-27
Chassis fasteners

Make sure that all nuts, bolts and screws are properly tightened. 5-6
Instruments and switches

Check operation, and correct if necessary. 5-6
Battery

Check electrolyte level. Fill with distilled water if necessary. 5-6, 8-29
ITEM ROUTINE PAGE

5-6
1
2
3
45
6
7
8
9
10
11

EBU19830
Tire wear limit
Replace the tire when the tire groove decreases to
3 mm (0.12 in).
EBU19840
Chassis fasteners
Make sure that all nuts, bolts and screws are prop-
erly tightened.
EBU19850
Instruments, lights and switches
Check that all instruments, lights and switches are
working properly. Correct if necessary.
EBU19860
Battery
Check the fluid level in the battery. Fill with distilled
water if necessary. (See page 8-29.) Recommended pressure:
Front
20 kPa (2.9 psi) (0.20 kgf/cm
2
)
Rear
20 kPa (2.9 psi) (0.20 kgf/cm
2
)
Minimum:
Front
17 kPa (2.5 psi) (0.17 kgf/cm
2
)
Rear
17 kPa (2.5 psi) (0.17 kgf/cm
2
)
Maximum:
Front
23 kPa (3.3 psi) (0.23 kgf/cm
2
)
Rear
23 kPa (3.3 psi) (0.23 kgf/cm
2
)
1. Tire wear limit

6-2
1
2
3
4
56
7
8
9
10
11

Position (1):

Cold engine start with ambient temperature be-
low 30 °C (90 °F).
Position (2):

Warming up position.
Position (3):

Cold engine start with ambient temperature
above 25 °C (80 °F).
Ambient temp./choke position
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
1. Fully open “ON”
2. Half open (warming up position)
3. Closed “OFF”
4. Choke
ON
OFF
0°
30°10°20°30°
50°70°90°°F °C
4 1
133
2

8-6
1
2
3
4
5
6
78
9
10
11

10
*
Shock absorber
assemblies

Check operation and correct if necessary.

Check for oil leakage and replace if necessary.
√√√
11
*
Front knuckle piv-
ots


Lubricate with lithium-soap-based grease.
√√√
12
*
Steering shaft


Lubricate with lithium-soap-based grease.
√√√
13
*
Steering system


Check operation and repair or replace if damaged.

Check toe-in and adjust if necessary.
√√√√√
14 Engine oil

Change.

Check ATV for oil leakage, and correct if neces-
sary.
√ √√√
15 Final gear oil

Change.

Check ATV for oil leakage, and correct if neces-
sary.
√√
16
*
Moving parts and
cables


Lubricate.
√√√√
17
*
Throttle lever hous-
ing and cable


Check operation and correct if necessary.

Check throttle cable free play and have a Yamaha
dealer adjust if necessary.

Lubricate throttle lever housing and cable.
√√√√√
18
*
Front and rear brake
switches


Check operation and correct if necessary.
√√√√√
19
*
Battery


Check electrolyte level and specific gravity, and
correct if necessary.

Make sure that the breather hose is properly
routed.
√√√√√
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth 1 3 6 6 12
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320

8-29
1
2
3
4
5
6
78
9
10
11

EBU25121
Battery
A poorly maintained battery will corrode and dis-
charge quickly. The electrolyte level, battery lead
connections and breather hose routing should be
checked before each ride and at the intervals
specified in the periodic maintenance and lubrica-
tion chart.
To check the electrolyte level
1. Place the ATV on a level surface.
2. Check the electrolyte level in the battery.
NOTE:

The electrolyte should be between the minimum
and maximum level marks.
3. If the electrolyte is at or below the minimum
level mark, add distilled water to raise it to the
maximum level mark.CAUTION:

ECB00590
Use only distilled water, as tap water contains
minerals that are harmful to the battery.WARNING
EWB02160
Battery electrolyte is poisonous and danger-
ous, as it contains sulfuric acid, which can
cause severe burns. Avoid contact with skin,
eyes or clothing. Always shield your eyes
when working near batteries.
Recommended lubricant:
Lithium-soap-based grease
1. Maximum level mark
2. Minimum level mark
1
2

8-30
1
2
3
4
5
6
78
9
10
11

Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten 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 ig-
nition away. Ventilate when charging or using
in an enclosed space.
KEEP OUT OF REACH OF CHILDREN.
4. Check and, if necessary, tighten the battery
lead connections and correct the breather
hose routing.
To store the battery
If the ATV will not be used for more than one
month, the battery will need to be removed and
stored as follows.
1. Disconnect the negative lead first and then the
positive lead.2. Remove the battery, fully charge it, and then
place it in a cool, dry place.CAUTION:
ECB00600
Do not leave or store the battery on its side.
3. If the battery will be stored for more than two
months, check the specific gravity of the elec-
trolyte at least once a month and fully charge
the battery whenever necessary.
1. Battery
2. Negative battery lead (black)
3. Positive battery lead (red)
23
1

8-31
1
2
3
4
5
6
78
9
10
11

To install the battery
NOTE:

Be sure the battery is fully charged.
1. Install the battery.
2. Connect the positive lead first, and then con-
nect the negative lead.
3. Make sure that the breather hose is properly
routed, in good condition, and not obstructed.
CAUTION:

ECB00610
If the breather hose is positioned in such a waythat the frame is exposed to electrolyte or gas
expelled from the battery, the frame could suf-
fer structural and external damages.
EBU25242
Replacing the fuse
The fuse holder is located under the seat. (See
page 4-10.)
If the fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off all electrical
circuits.
1. Battery
2. Battery breather hose
1
2

1. Fuse
2. Spare fuse
1
2

8-35
1
2
3
4
5
6
78
9
10
11

EBU25791
Troubleshooting chart
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.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the ATV.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the ATV.
The engine does not start.
Have a Yamaha dealer
check the ATV.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the electrolyte level, recharge the
battery and check the lead connections.
DryWet
Open the throttle halfway and operate
the electric starter.