Yamaha XV1600A1999 Service Manual page 373

CARBURETOR
2. Adjust:
S fuel level
a. Remove the carburetor.
b. Check the needle valve seat and needle
valve.
c. If either is worn, replace them as a set.
d. If both are fine, adjust the float level by slight-
ly bending the float tang 1 .
e. Install the carburetor.
f. Measure the fuel level again.
g. Repeat steps (a) to (f) until the fuel level is
within specification.
EAS00502
CHECKING AND
THROTTLE POSITION SENSOR
NOTE:
Before adjusting the throttle position sensor, the
engine idling speed should be properly ad-
justed.
1. Check:
S throttle position sensor
(installed on the carburetor)
a. Disconnect the throttle position sensor cou-
pler from the wire harness.
b. Connect the pocket tester (Ω
throttle position sensor coupler.
Positive tester probe ! blue terminal 1
Negative tester probe ! black terminal 2
c. Measure the maximum throttle position sen-
sor resistance.
Out of specification ! Replace the throttle
position sensor.
Maximum throttle position
sensor resistance
4.0
(blue – black)
6-15
CARB
ADJUSTING
1k) to the
6.0 kΩ at 20_C
E
THE