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Yamaha F25A Service Manual

Yamaha F25A
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3-3
INSP
ADJ
E
CONTROL SYSTEM
Idle speed adjustment
1. Measure:
Idle speed
Out of specification
Adjust.
Idle speed:
925
±
50 r/min
Measuring steps:
Start the engine and allow it to warm
up for a few minutes.
Attach the tachometer to cylinder #1’s
spark plug lead.
Tachometer:
YU-08036-A/90890-06760
2. Adjust:
Idle speed
Start-in-gear protection device adjustment
1. Check:
Start-in-gear protection device opera-
tion
Incorrect
Adjust.
2. Adjust:
Start-in-gear protection wire
Adjustment steps:
Turn the throttle stop screw
1
in direc-
tion
a
or
b
until the specified idle
speed is obtained.
Direction
a
Idle speed increases.
Direction
b
Idle speed decreases.
Adjusting steps:
Set the shift lever in the neutral posi-
tion.
Loosen the screw
1
.
Move the adjusting plate
2
until the
point
a
on the wire connector aligns
with the mark
b
in the flywheel cover.
Tighten the screw.

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Yamaha F25A Specifications

General IconGeneral
BrandYamaha
ModelF25A
CategoryOutboard Motor
LanguageEnglish

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