Checking The Throttle Position Sensor; Installing The Throttle Position Sensor; Checking The Idle Speed Control - Yamaha F50F Service Manual

FUEL
Checking the throttle position
sensor
1. Check the throttle position sensor output
voltage using the Yamaha Diagnostic
System. If the output voltage is out of
specification, replace the throttle posi-
tion sensor.
Throttle position sensor output
voltage at engine idle speed:
0.8–1.2 V

Installing the throttle position sensor

1. Install the throttle position sensor 1 in a
position where the output voltage is
within specification.
1
Throttle position sensor output
voltage at engine idle speed:
0.8–1.2 V
4-11
Fuel system
S6C14350
a
S6C14310
NOTE:
• If the throttle position sensor output voltage
is out of specification, reinstall the throttle
position sensor.
• Measure the throttle position sensor output
voltage using the Yamaha Diagnostic Sys-
tem.
• Do not turn the throttle stop screw a.

Checking the idle speed control

1. Check the operation of the idle speed
control using the Yamaha Diagnostic
System.
6C13G11