override YAMAHA GRIZZLY 450 2010 Owners Manual

4-5
4To set the clock
1. Set the display to the clock mode.
2. Push the“/” button until the clock starts
flashing.
3. Set the hours by pushing the “H” button.
4. Set the minutes by pushing the “M” button.
5. Push the“/” button, and then release it to
start the clock.EBU18050Fuel gauge The fuel gauge indicates the amount of fuel in the
fuel tank. When the needle reaches the red line, re-
fill the tank at the first opportunity.
TIPIf the ATV runs out of fuel, move the fuel cock lever
to the “RES” position. Approximately 4.5 L (1.19
US gal, 0.99 Imp.gal) of fuel will be remaining in
the tank.EBU18061Handlebar switches
1. Fuel gauge
2. Red line
1. Light switch“/ /OFF”
2. Start switch“”
3. Engine stop switch“/”
4. Override switch “OVERRIDE”
5. Horn switch“”
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4-6
4
EBU18080Engine stop switch“/”
Set this switch to“” 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“”.EBU18101Start switch“”
Push this switch to crank the engine with the start-
er. See the starting instructions on page 6-1 prior
to starting the engine.EBU18152Light switch“//OFF”
Set this switch to“” to turn on the low beams
and the taillight. Set the switch to“” to turn on
the high beams and the taillight. Set the switch to
“OFF” to turn off all the lights.NOTICEECB00041Do not use the headlights with the engine
turned off for an extended period of time, oth-
erwise the battery may discharge to the point
that the starter motor will not operate properly.If this should happen, remove the battery and
recharge it. See page 8-51 for battery charging
information.
EBU18170Horn switch“”
Press the switch to sound the horn.EBU18190Override switch “OVERRIDE”
Top speed is normally limited when operating in
differential gear lock. If conditions require more en-
gine power when riding forward, push and hold this1. Override switch “OVERRIDE”
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4-7
4switch to override the differential gear lock speed
limiting function. (See page 4-8.) Releasing the
switch restores the speed limiting function.
While the override switch is pushed, the segments
of the speedometer digits will appear as shown in
the figure.
TIPIf 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.
WARNING
EWB00150Always ride at a slow speed when the ATV is in
four-wheel-drive differential gear lock, and al-
low extra time and distance for maneuvers.
All wheels turn at the same speed when the dif-
ferential is locked, so it takes more effort to
turn the ATV. The effort needed to turn increas-
es with the riding speed. You may lose control
and have an accident if you cannot make a
sharp enough turn for the speed you are trav-
eling.EBU26606On-Command four-wheel-drive switch
“2WD”/“4WD”
WARNING
EWB00163Always stop the ATV before changing from
two-wheel drive to four-wheel drive and vice
versa. The ATV handles differently in two-
wheel drive than in four-wheel drive in some
circumstances. Changing from two-wheel
drive to four-wheel drive or vice versa while
moving may cause the ATV to unexpectedly
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4-11
4

Riding before the differential gear lock is proper-
ly engaged (e.g., when the indicator and indica-
tor light are flashing) will cause the vehicle
speed to be limited until engagement is com-
plete.
When the ATV is in four-wheel-drive differential
gear lock, the maximum traveling speed is limit-
ed to 35 km/h (22 mi/h). However, if conditions
require full engine power to be available, push
and hold the override switch to disable the differ-
ential gear lock speed limiter. (See page 4-6 for
a detailed explanation of this switch.)EBU18282Throttle lever Once the engine is running, pushing the throttle le-
ver 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 throttle lever is re-
leased.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.
EBU18323Speed limiter Your ATV is equipped with an adjustable speed
limiter. The speed limiter keeps the throttle from
fully opening, even when the throttle lever is
pushed to the maximum.
1. Loosen the locknut.
2. To increase the maximum engine power avail-
able and the maximum speed of the ATV, turn
the adjusting screw in direction (a). To de-1. Throttle lever
U37S61E0.book Page 11 Tuesday, June 2, 2009 10:33 AM

IIdentification numbers .................................................. 11-1
Indicator lights and warning light .................................... 4-2
Instruments, lights and switches .................................... 5-7KKey identification number ............................................. 11-1LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-6
Low-range indicator light ................................................ 4-3MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2
Multi-function display ...................................................... 4-4NNeutral indicator light ..................................................... 4-2OOn-Command differential gear lock switch .................... 4-8
On-Command four-wheel-drive switch ........................... 4-7
Override switch .............................................................. 4-6
Owner’s manual and tool kit ........................................... 8-1PPanels, removing and installing ..................................... 8-9
Park indicator light .......................................................... 4-3
Parking ........................................................................... 6-5
Parking on a slope ......................................................... 6-6
Part locations ................................................................. 3-1RRear knuckle pivots, lubricating ................................... 8-50Recoil starter ................................................................ 4-13
Reverse indicator light .................................................... 4-2
Riding your ATV ............................................................. 7-1
SSafety information .......................................................... 2-1
Seat .............................................................................. 4-18
Shock absorber assemblies, adjusting the front and
rear ............................................................................ 4-21
Spark arrester, cleaning ............................................... 8-33
Spark plug, checking .................................................... 8-14
Specifications ............................................................... 10-1
Speed limiter ................................................................ 4-11
Stabilizer bushes, checking .......................................... 8-50
Starter (choke) ............................................................. 4-17
Start switch ..................................................................... 4-6
Steering shaft, lubricating ............................................. 8-50
Storage ........................................................................... 9-2
Storage compartments ................................................. 4-19TTail/brake light bulb, replacing ..................................... 8-57
Throttle cable free play, adjusting ................................ 8-37
Throttle lever ......................................................... 4-11, 5-4
Tires ............................................................................... 5-4
Troubleshooting ........................................................... 8-61
Troubleshooting charts ................................................. 8-62VValve clearance ............................................................ 8-38
V-belt case drain plug .................................................. 8-35
V-belt cooling duct check hose .................................... 8-35
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-49
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