YAMAHA YFM80R 2007 Owner's Manual

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INSTRUMENT AND CONTROL FUNCTIONS
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Main switch
The positions of the main switch are as follows:
ON
All electrical systems are supplied with power, and
the engine can be started. The key cannot be re-
moved.
OFF
All electrical systems are off. The key can be re-
moved.

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Indicator light
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Neutral indicator light “”
This indicator light comes on when the transmis-
sion is in the neutral position.
1. Main switch
OFF ON
1

1. Neutral indicator light “N”
1

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Handlebar switches
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Engine stop switch “ENG. STOP”
Set this switch to “RUN” before starting the engine.
The engine stop switch controls the ignition and
stops the engine when it is running. Use this switch
to stop the engine in an emergency situation. The
engine will not start or run when this switch is set
to “OFF”.
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Start switch “START”
Push this switch to crank the engine with the start-
er.CAUTION:

ECB00050
See the starting instructions on page 6-1 prior
to starting the engine.
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Throttle lever
Once the engine is running, movement of the throt-
tle lever will increase the engine speed.
Regulate the speed of the ATV by varying the
throttle position. Because the throttle is spring-
loaded, the ATV will decelerate, and the engine will
return to an idle any time the hand is removed from
the throttle lever.
1. Engine stop switch “ENG. STOP”
2. Start switch “START”
12

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Before starting the engine, check the throttle to be
sure it is operating smoothly. Make sure it returns
to the idle position as soon as the lever is released.
WARNING

EWB00250
Malfunction of the throttle could make it diffi-
cult to speed up or slow down when you need
to. This could cause an accident. Check the op-
eration of the throttle lever before you start the
engine. If the throttle does not work smoothly,
check for the cause. Correct the problem be-
fore riding the ATV or consult a Yamaha dealer.
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Speed limiter and air intake restrictor
plate
Your ATV was delivered with an adjustable speed
limiter and an air intake restrictor plate. Yamaha
recommends that all beginning riders start off with
the speed limiter adjusting screw fully turned in and
the air intake restrictor plate installed to limit the
amount of speed available while they learn.
The speed limiter keeps the throttle from fully
opening, even when the throttle lever is pushed to
the maximum. The adjusting screw may be gradu-
ally turned out as the beginner becomes more fa-
miliar with operating the ATV. Parents should
decide when to adjust the ATV for more power as
their youngster’s riding skills improve. Once the
ATV rider can operate with skill at the top speed
permitted by adjusting the speed limiter alone, the
air intake restrictor plate can be removed. Since re-
moval of this plate will result in a significant in-
crease in power, turn the adjusting screw
completely back in again; adjust it out in stages as
done previously.
1. Loosen the locknut.
2. To increase the maximum engine power avail-
able and the maximum speed of the ATV, turn
1. Throttle lever
1

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the adjusting screw in direction (a). To de-
crease the maximum engine power available
and the maximum speed of the ATV, turn the
adjusting screw in direction (b).
NOTE:

Adjusting for maximum throttle lever movement
without removing the air intake restrictor plate will
cause the engine to run roughly at higher speeds.
(See page 8-15.)3. Tighten the locknut.
WARNING
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Improper adjustment of the speed limiter and
throttle could cause throttle cable damage or
improper throttle operation. The child could
lose control, have an accident or be injured. Do
not turn the adjusting screw out more than 20
mm (0.8 in) or the throttle cable could be dam-
aged.
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Front brake lever
The front brake lever is located on the right handle-
bar. To apply the front brake, pull the brake lever
toward the handlebar grip.
1. Locknut
2. Adjusting screw
3. No more than 20 mm (0.8 in)
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(b)
(a)

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Brake pedal and rear brake lever
The brake pedal is located on the right side of the
ATV and the rear brake lever is located on the left
handlebar. To apply the rear brake, push down on
the brake pedal or pull the brake lever toward the
handlebar grip.
1. Front brake lever
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1. Brake pedal
1. Rear brake lever
1
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Parking brake
Use the parking brake before starting the engine or
parking the ATV, especially on a slope. Apply the
rear brake lever and push down the lock plate to
apply the parking brake. Squeeze the rear brake
lever to release the parking brake.
WARNING

EWB00220

Always set the parking brake before starting
the engine. The ATV could start moving un-
expectedly if the parking brake is not ap-
plied. This could cause loss of control or acollision.

Always be sure you have released the park-
ing brake before you begin to ride. The brake
could overheat if you ride the ATV without re-
leasing the parking brake. You could lose
braking performance which could cause an
accident. You could also wear out the brakes
prematurely.
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Shift pedal
This ATV is equipped with a constant-mesh 3-
speed transmission. The shift pedal is located on
the left side of the engine. Neutral is at the bottom
position.
1. Parking brake lock plate
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Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
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Fuel
Make sure that there is sufficient fuel in the tank.
Fill the fuel tank to the bottom of the filler tube as
shown.
1. Shift pedal
2. Neutral position
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1. Fuel tank cap
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NOTE:

If knocking or pinging occurs, use a different brand
of gasoline or higher octane grade.CAUTION:
ECB00070
Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system.WARNING
EWB00310

Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is overfilled,
fuel could spill out due to heat from the en-
gine or the sun.

Be careful not to spill fuel, especially on the
engine or exhaust pipe which can cause a
fire and severe injury. Wipe up any spilled
fuel immediately.

Do not refuel right after the engine has been
running and is still very hot.

Be sure the fuel tank cap is closed securely.
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Fuel cock
The fuel cock supplies fuel from the tank to the car-
buretor while also filtering it.
1. Fuel level
2. Filler tube
Recommended fuel:
UNLEADED GASOLINE ONLY
For Europe: Regular unleaded gasoline only
with a research octane number of 91 or high-
er
Fuel tank capacity:
6.8 L (1.80 US gal) (1.50 Imp.gal)
Fuel reserve amount:
0.9 L (0.24 US gal) (0.20 Imp.gal)

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The fuel cock lever positions are explained as fol-
lows and shown in the illustrations.
OFF
With the fuel cock lever in this position, fuel will not
flow. Always turn the fuel cock lever to this position
when the engine is not running.
ON
With the fuel cock lever in this position, fuel flows
to the carburetor. Turn the fuel cock lever to this
position when starting the engine and riding.

1. Arrow mark positioned over “OFF”
RES
ONFUEL
OFF
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1. Arrow mark positioned over “ON”
ON
FUEL
RES
OFF
ON
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RES
This indicates reserve. With the fuel cock lever in
this position, the fuel reserve is made available.
Turn the fuel cock lever to this position if you run
out of fuel while riding. When this occurs, refuel as
soon as possible and be sure to turn the fuel cock
lever back to “ON”!
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Choke
The choke is used to start a cold engine.
Move the choke in direction (a) to turn on the
choke.Move the choke in direction (b) to turn off the
choke.
See the “Starting a cold engine” section on page
6-1 for proper operation.
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Seat
To remove the seat
Pull the seat lock lever upward and pull up the seat
at the rear.
1. Arrow mark positioned over “RES”
OFF
ONFUEL RES
RES
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1. Fully open “ON”
2. Half open (warming up position)
3. Closed “OFF”
4. Choke
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(a)
(b)