4-13
4
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.
EBU18321
Speed limiter
Your ATV was delivered 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-
crease the maximum engine power available
and the maximum speed of the ATV, turn the
adjusting screw in direction (b).
1. Throttle lever
2WD
4WD
1
1. Locknut
2. Adjusting screw
3. No more than 12 mm (0.47 in)
2
1
3
(b)
(a)
U28P60E0.book Page 13 Thursday, April 17, 2008 8:51 AM
Summary of Contents for GRIZZLY 550 FI YFM5FGPY
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Page 63: ...7 1 7 EBU21141 RIDING YOUR ATV U28P60E0 book Page 1 Thursday April 17 2008 8 51 AM ...
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