Adjusting Idling Speed - Yamaha F50A Owner's Manual

EMU00376

ADJUSTING IDLING SPEED

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8 Do not touch or remove electrical parts
when starting or during operation.
8 Keep hands, hair and clothes away
from flywheel and other rotating parts
while engine is running.
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This procedure must be performed while
the outboard motor is in the water. A
flushing attachment or test tank can be
used.
A diagnostic tachometer should be used
for this procedure.
1) Start the engine and allow it to warm
2) Adjust the throttle stop-screw to set
NOTE:
Correct idling-speed adjustment is only
possible if the engine is fully warmed-up.
If not warmed up fully, the speed setting
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will tend to be too high. If you have diffi-
culty obtaining the specified idle, consult
a Yamaha dealer or other qualified
mechanic.
1 Throttle stop-screw
000204
4-16
up fully in Neutral until it is running
smoothly. If the outboard is mounted
on a boat, be sure the boat is tightly
moored.
the idling speed to specification (see
"SPECIFICATIONS") by turning the
stop-screw clockwise to increase the
idling speed, and turning it counter-
clockwise to decrease the idling
speed.
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