Yamaha F25 [66/444] Control system

Yamaha F20 BMHS [66/444] Control system
3-2
INSP
ADJ
E
COWLING/FUEL SYSTEM/CONTROL SYSTEM
PERIODIC SERVICE
COWLING
Water separator drain hole
1. Inspect:
Water separator drain hole
Obstruction
Clean.
FUEL SYSTEM
Fuel line
1. Inspect:
Fuel line
Cracks/damage/leaks
Replace the
defective part(s).
Fuel filter replacement
1. Inspect:
Fuel filter
Clogs/cracks/leaks
Replace.
Foreign matter
Clean.
2. Replace:
Fuel filter (new)
CAUTION:
The flange side of the fuel filter must face
towards the fuel joint.
CONTROL SYSTEM
Throttle link rod
1. Check:
Throttle valve full-open position
Incorrect
Adjust.
2. Adjust:
Throttle link rod
Adjusting steps:
Loosen the screw
1
.
Turn the throttle control lever
2
clock-
wise (wide open throttle).
When the lever contacts the stopper
3
hold it in that position.
Turn the throttle lever
4
clockwise so
that the throttle valve is fully opened.
Tighten the screw.
Operate the throttle control lever and
check that the throttle valve turns from
full-open to full-close.

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