2004 YAMAHA YFM80R wheel

7-75
WHAT TO DO IF ...
This section is designed to be a reference guide
only. Be sure to read each section on riding
techniques completely.
WHAT TO DO ...
8If your ATV doesn’t turn when you want it to:
Bring the ATV to a stop and practice the turn-
ing maneuvers again. Be sure you are putting
your weight on the footboard to the outside of
the turn. Position your weight over the front
wheels for better control. (See pages 7-41–
7-45.)
8If your ATV begins to tip while turning:
Lean more into the turn to regain balance. If
necessary, gradually let off the throttle and/or
steer to the outside of the turn. (See pages
7-41–7-45.)
5TH-9-62 7 4/8/03 6:10 PM Page 218

8-8 * Since these items require special tools, data and techinical skills, hava a Yamaha dealer perform the service.INITIAL EVERY
ITEM ROUTINE 1 3 6 6 1
month months months months year
Clutch*9Check operation.
2222
9Adjust if necessary.
Wheels*9Check balance/damage/runout.
2222
9Replace if necessary.
9Check bearing assemblies for looseness/
Wheel bearings*damage.2222
9Replace if damaged.
9Check operation.
Steering system*9Replace if damage.
22222
9Check toe-in
9Adjust if necessary.
Knuckle shafts/9Lubricate every 6 months with Lithium-soap-based
222
steering shaft*grease.
Fittings and fasteners*9Check all chassis fittings and fasteners.
22222
9Correct if necessary.
9Check specific gravity.
Battery*9Check breather hose for correct routing.22222
9Correct if necessary.
5TH-9-62 8 4/8/03 9:05 PM Page 8-8

8-47
EBU03361
Rear brake lever and brake pedal adjustment
Brake lever free play adjustment
1. Loosen the brake cable locknut.
2. Turn the adjusting bolt at the brake lever
until brake lever free play is 5–8 mm.
3. Tighten the locknut.
NOTE:
If specified free play cannot be obtained, tighten
the brake cable adjusting nut at the rear wheel
hub until brake lever free play is 5–8 mm.
wqa
q
1. Locknut 2. Adjusting bolt1. Contre-écrou 2. Boulon de réglage1. Contratuerca 2. Perno de ajustea. Free playa. Jeua. Juego
1. Brake cable adjusting nut
1. Ecrou de réglage du câble de frein1. Tuerca de ajuste del cable de freno
5TH-9-62 8 4/8/03 9:05 PM Page 8-47

8-49
Brake pedal free play adjustment
Turn the brake rod adjusting nut at the rear
wheel hub until brake pedal free play is 20–
30 mm.
w
Operating with improperly serviced or adjus-
ted brakes could cause loss of braking abili-
ty, which could lead to an accident.
After servicing:
8Make sure the brakes operate smoothly
and that the free play is correct.
8Make sure the brakes do not drag.
8Replacement of brake components
requires professional knowledge. These
procedures should be performed by a
Yamaha dealer.
a
q
a. Free playa. Jeua. Juego
1. Brake rod adjusting nut
1. Ecrou de réglagede la tringle de frein1. Tuerca de ajuste de la varilla de freno
5TH-9-62 8 4/8/03 9:05 PM Page 8-49

1. Wheel nut (×4) 2. Wheel nut (×3)1. Ecrou de roue (×4)2. Ecrou de roue (×3)1. Tueroa de rueda (×4) 2. Tueroa de rueda (×3)
8-57
EBU01112
Wheel removal
1. Loosen the wheel nuts.
2. Elevate the ATV and place a suitable stand
under the frame.
3. Remove the nuts from the wheel.
4. Remove the wheel.
EBU00871
Wheel installation
When installing the wheels, reverse the removal
procedure.
Tighten the wheel nuts to the specified torque.
Tightening torque:
Wheel nut:
Front: 28 Nm (2.8 m0kgf)
Rear: 28 Nm (2.8 m0kgf)
1
12
FrontAvantDelantera
RearArrièreTrasera
5TH-9-62 8 4/8/03 9:05 PM Page 8-57

9-1
EBU00420
CLEANING AND STORAGE
A. CLEANING
Frequent, thorough cleaning of your machine
will not only enhance its appearance but will
improve its general performance and extend the
useful life of many components.
1. Before cleaning the machine:
a. Block off the end of the exhaust pipe to
prevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plug and all filler caps
are properly installed.
2. If the engine case is excessively greasy,
apply degreaser with a paint brush. Do not
apply degreaser to the wheel axles.
5TH-9-62 9~ 4/8/03 6:13 PM Page 298

9-3
3. Rinse the dirt and degreaser off with a gar-
den hose. Use only enough pressure to do
the job.
cC
Excessive water pressure may cause water
seepage and deterioration of wheel bearings,
brakes, transmission seals and electrical
devices. Many expensive repair bills have
resulted from improper high pressure deter-
gent applications such as those available in
coin-operated car washers.
4. Once the majority of the dirt has been
hosed off, wash all surfaces with warm
water and mild, detergent-type soap. An
old toothbrush or bottle brush is handy for
hard-to-get-at places.
5. Rinse the machine off immediately with
clean water and dry all surfaces with a
chamois, clean towel or soft absorbent
cloth.
5TH-9-62 9~ 4/8/03 6:13 PM Page 300

9-9
4. Block up the frame to raise all wheels off
the ground.
5. Tie a plastic bag over the exhaust pipe out-
let to prevent moisture from entering.
6. 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.
7. 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.
5TH-9-62 9~ 4/8/03 6:13 PM Page 306