2006 YAMAHA GRIZZLY 660 engine

4-21 1. Lights switch “//OFF”
2. Start switch “”
3. Engine stop switch “/”
4. Override switch “OVERRIDE”
5. Horn switch “”
1. Contacteur d’éclairage “//OFF”
2. Contacteur du démarreur “”
3. Coupe-circuit du moteur “/”
4. Contacteur de désactivation “OVERRIDE”
5. Contacteur de l’avertisseur “”
1. Interruptor de luces “//OFF”
2. Interruptor de arranque “”
3. Interruptor de paro del motor “/”
4. Interruptor de cancelación “OVERRIDE”
5. Interruptor de la bocina “”
EBU00607
Start switch “”
The starter motor cranks the engine when this
switch is pushed.CAUTION:
See starting instructions prior to starting the
engine. (See pages 6-3–6-7 for details.)
EBU00059
Horn switch “”
Press the switch to sound the horn.
U2C660.book Page 21 Monday, April 11, 2005 10:29 AM

4-23 1. Override switch “OVERRIDE”
1. Contacteur de désactivation “OVERRIDE”
1. Interruptor de cancelación “OVERRIDE”
EBU13811
Override switch “OVERRIDE”
Top speed is normally limited when operating in
4WD-LOCK. If conditions require more engine
power when riding forward, push and hold this
switch to override the 4WD-LOCK speed limiting
function. (See pages 4-33–4-35 for a detailed ex-
planation about the differential gear lock switch
and its function.) Releasing the switch restores the
speed limiting function.
While this switch is pushed, the segments of the
speedometer digits will appear as shown in the fig-
ure.NOTE:_ If the digits of the speedometer appear as shown
when the switch is NOT being pushed, this could
indicate a malfunction in the electrical system. In
this case, take the ATV to a Yamaha dealer at the
first opportunity. _
U2C660.book Page 23 Monday, April 11, 2005 10:29 AM

4-35
NOTE:_

When the switch is set to “LOCK”, the differ-
ential gear lock indicator light will flash until
the differential gear is locked.


When the indicator light is flashing, turning
the handlebar back and forth will help the dif-
ferential gear lock to engage.


Riding before the differential gear lock is
properly engaged (e.g., when the indicator
light is flashing) will cause the engine speed
to be limited until engagement is complete.


When the ATV is in 4WD-LOCK, the maxi-
mum traveling speed is limited to 35 km/h.
However, if conditions require full engine
power to be available, push and hold the
override switch to disable the 4WD-LOCK
speed limiter. (See pages 4-23–4-25 for a de-
tailed explanation of this switch.)
_
U2C660.book Page 35 Monday, April 11, 2005 10:29 AM

4-37 1. Throttle lever
1. Levier d’accélération
1. Palanca de aceleración
EBU00063
Throttle lever
Once the engine is running, movement of the
throttle lever will increase the engine speed.
Regulate the speed of the machine by varying the
throttle position. Because the throttle is spring-
loaded, the machine will decelerate, and the en-
gine will return to an idle any time the hand is re-
moved from the throttle lever.
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
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
operation of the throttle lever before you start
the engine. If the throttle does not work
smoothly, check for the cause. Correct the
problem before riding the ATV or consult a
Yamaha dealer.
U2C660.book Page 37 Monday, April 11, 2005 10:29 AM

4-39 1. Locknut 2. Adjusting screw
a. No more than 12 mm
1. Contre-écrou 2. Vis de réglage
a. 12 mm maximum
1. Contratuerca 2. Tornillo de ajuste
a. 12 mm como máximo
EBU01198
Speed limiter
The speed limiter keeps the throttle from fully
opening, even when the throttle lever is pushed to
the maximum. Turning in the adjusting screw limits
the maximum engine power available and de-
creases the maximum speed of the ATV.
WARNING
_ Improper adjustment of the speed limiter and
throttle could cause throttle cable damage or
improper throttle operation. You could lose
control, have an accident or be injured. Do not
turn the adjusting screw out more than 12 mm
or the throttle cable could be damaged. Always
make sure the throttle lever free play is adjust-
ed to 3–5 mm. See page 8-99. _
U2C660.book Page 39 Monday, April 11, 2005 10:29 AM

4-45 1. Drive select lever
1. Levier de présélection
1. Palanca de selección de marcha
1. Recoil starter
1. Lanceur à réenroulement
1. Arranque por tracción de cable
EBU00608
Drive select lever
The drive select lever is used to shift your machine
into the low, high, neutral, reverse and park posi-
tions. (Refer to pages 6-11–6-15 for the drive se-
lect lever operation.)
EBU00975
Recoil starter
Firmly grasp the handle and pull slightly until en-
gagement can be felt. Then pull forcefully, being
careful not to pull the rope all the way out.
WARNING
_ Always shift the drive select lever to “P” park
position before starting the engine, otherwise
the ATV could start to move unexpectedly,
which could cause an accident. _
U2C660.book Page 45 Monday, April 11, 2005 10:29 AM

4-49 1. Arrow mark pointing to “OFF”
1. Flèche dirigée vers “OFF”
1. Marca de la flecha señalando a “OFF”
OFF position
Robinet fermé
Posición OFF1. Arrow mark pointing to “ON”
1. Flèche dirigée vers “ON”
1. Marca de la flecha señalando a “ON”ON position
Robinet ouvert
Posición ON
EBU00093
Fuel cock
The fuel cock supplies fuel from the fuel tank to the
carburetor.
The fuel cock has three positions.
OFF: With the lever in this position fuel will not
flow. Always turn the lever to this position
when the engine is not running.
ON: With the lever in this position, fuel flows to
the carburetor. Normal riding is done with
the lever in this position.
U2C660.book Page 49 Monday, April 11, 2005 10:29 AM

4-51 1. Arrow mark pointing to “RES”
1. Flèche dirigée vers “RES”
1. Marca de la flecha señalando a “RES”
RES position
Réserve
Posición RES1. Starter (choke) “”
1. Starter (enrichisseur) “”
1. Starter (choke) “”
RES: This indicates reserve. If you run out of fuel
while riding, turn the lever to this position.
THEN FILL THE FUEL TANK AT THE
FIRST OPPORTUNITY. After refuelling, re-
turn the fuel cock lever to the “ON” position.
EBU00095
Starter (choke) “”
Starting a cold engine requires a richer air-fuel
mixture. A separate starter circuit supplies this
mixture.
Move in direction
a to turn on the starter (choke).
Move in direction
b to turn off the starter (choke).
Refer to “Starting a cold engine” for proper opera-
tion. (See pages 6-3–6-7.)
U2C660.book Page 51 Monday, April 11, 2005 10:29 AM