Engine; Speed Limiter Adjustment - Yamaha YFM80WP Service Manual

SPEED LIMITER ADJUSTMENT

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ENGINE

SPEED LIMITER ADJUSTMENT
The speed limiter keeps the carburetor throttle
from becoming fully-opened even when the
throttle lever is applied to the maximum posi-
tion. Screwing in the adjuster stops the engine
speed from increasing.
1.Check:
Speed limiter length a
G
Out of specification → Adjust.
a
2.Adjust:
Speed limiter length
G
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Speed limiter length adjustment steps:
Loosen the locknut 1.
G
Turn the adjuster 2 in or out until the speci-
G
fied speed limiter length is obtained.
Turning in
Turning out
G
Tighten the locknut.
Particularly for a beginner rider, the
G
speed limiter should be screwed in com-
pletely. Screw it out little by little as their
riding technique improves. Never remove
the speed limiter for a beginning rider.
For proper throttle lever operation do not
G
turn out the adjuster more than 20 mm
(0.8 in). Also, always adjust the throttle
lever free play to 3 ~ 5 mm (0.12 ~ 0.20 in).
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– 16 –
Speed limiter length:
Less than 20 mm (0.8 in)
Speed limiter length is
decreased.
Speed limiter length is
increased.
WARNING
CHK
ADJ