2004 YAMAHA YFM50S wheel

Rear brake lever adjustment ..............8-47
Cable inspection and lubrication ........8-51
Brake lever lubrication ........................8-53
Knuckle shaft and steering shaft
lubrication .........................................8-53
Wheel removal ...................................8-55
Wheel installation ...............................8-55
Battery ................................................8-57
Replenishing the battery fluid .............8-61
Fuse replacement ...............................8-65
Troubleshooting ..................................8-67
Troubleshooting chart .........................8-71
CLEANING AND STORAGE....................9-1
A. Cleaning ...........................................9-1
B. Storage ............................................9-7SPECIFICATIONS .................................10-1
Conversion Table ...................................11-1
9
10
11
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2-5
8Never operate at speeds too fast for your
skills or the conditions. Always go at a speed
that is proper for the terrain, visibility and
operating conditions, and your experience.
8Never attempt wheelies, jumps, or other
stunts.
8Always inspect your ATV each time you use it
to make sure it is in safe operating condition.
Always follow the inspection and maintenance
procedures and schedules described in this
manual.
8Always keep both hands on the handlebars
and both feet on the footrests of the ATV dur-
ing operation.
8Always go slowly and be extra careful when
operating on unfamiliar terrain. Always be
alert to changing terrain conditions when
operating the ATV.
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5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Brakes9Check operation, condition and free play.
5-5–5-7, 8-41–8-49
9Adjust if necessary.
Fuel9Check fuel level.
9Fill with fuel if necessary.5-9–5-11
Engine oil9Check oil level.
9Fill with oil if necessary.5-11–5-13, 8-13–8-17
Final gear oil9Check for leakage. 5-15, 8-19–8-21
Throttle9Check for proper throttle cable operation. 5-17
Wheels and tires9Check tire pressure, wear and damage. 5-19–5-25, 8-55
Fittings and fasteners9Check all fittings and fasteners. 5-17
Switches9Check operation. 5-17
Battery9Check fluid level.
5-17, 8-57–8-63
9Fill with distilled water if necessary.
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6-15
4. Squeeze the rear brake lever to release
the parking brake.
5. Gradually open the throttle lever while
slowly releasing the rear brake lever.
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Always open the throttle gradually. Opening
the throttle abruptly would increase the
chance of an accident. It could make the
machine wheelie or overturn.
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6-17
EBU00208
To decelerate:
When slowing down or stopping, release the
throttle and apply the brakes smoothly and
evenly. As you slow down, shift to a lower gear.
Be sure that the engine has sufficiently slowed
before engaging a lower gear. Improper use of
the brakes or shifting can cause the tires to lose
traction, reducing control and increasing the
possibility of an accident.
w
Make sure the engine has sufficiently slowed
before shifting to a lower gear. Engaging a
lower gear when the engine speed is too
high could make the wheels stop rotating.
This could cause loss of control, an accident
and injury. It could also cause engine or
drive train damage.
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6-25
EBU14340
Parking on a slope
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Avoid parking on hills or other inclines.
Parking on a hill or other incline could cause
the ATV to roll out of control, increasing the
chance of an accident. If you must park on
an incline, shift the transmission into the
drive position, apply the parking brake, and
then block the front and rear wheels with
rocks or other objects.
Do not park the ATV at all on hills that are so
steep you could not walk up them easily.
1. Bring the ATV to a stop by applying the
brakes in the drive position.
2. Stop the engine.
3. With the rear brake lever applied, apply the
parking brake and slowly release the brake
lever.
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7-21
During operation
Always keep your feet on the footboards during
operation. Otherwise your feet may contact the
rear wheels.
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Always keep both hands on the handlebars
and both feet on the footboards of your ATV
during operation. Removing even one hand
or foot can reduce your ability to control the
ATV or could cause you to lose your balance
and fall off of the ATV. If you remove a foot
from a footboard, your foot or leg may come
into contact with the rear wheels, which
could injure you or cause an accident.
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7-23
Avoid wheelies and jumping.
You may lose control of the machine or over-
turn.
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Never attempt stunts, such as wheelies or
jumps. Don’t try to show off.
Modifications
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Never modify this ATV through improper
installation or use of accessories. All parts
and accessories added to this vehicle should
be genuine Yamaha or equivalent compo-
nents designed for use on this ATV and
should be installed and used according to
instructions. Improper installation of acces-
sories or modification of this vehicle may
cause changes in handling which in some
situations could lead to an accident.
If you have questions, consult an authorized
ATV dealer.
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