Carburetor Heater Relay Test; Carburetor Heater Relay Removal/Installation; Throttle Position Sensor Adjustment - Yamaha V star 1100 Owner's Manual

AIR/FUEL, EXHAUST AND EMISSION CONTROL SYSTEMS
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79
b. Note the resistance while slowly opening the
throttle.
c. Replace the sensor if the R2 resistance is out-
side the range specified in Table 2.
Adjustment
Adjust the throttle position sensor by turning the
sensor until its resistance is within the specified
range.
NOTE
The throttle position sensor is mounted
on the side of the rear carburetor.
1. Properly adjust the idle speed as described in
Chapter Three.
2. Remove the fuel tank, air filter housing and the
surge tank as described in Chapter Eight.
3. Disconnect the throttle position sensor (A, Fig-
ure 75) from its harness mate.
4. Loosen the throttle position sensor mounting
screws (A, Figure 78).
5. Connect the positive lead of an ohmmeter to the
yellow terminal (Figure 77) on the sensor side of
the connector and connect the negative lead to the
black terminal.
6. With the throttle fully closed, rotate the sensor
body (B, Figure 78) until the resistance is within
the fully closed range specified in Table 2.
7. Tighten the throttle position sensor screws se-
curely.
CARBURETOR HEATER
Troubleshooting
Refer to Chapter Two.

Carburetor Heater Relay Test

(Europe and Australia Models)
NOTE
A carburetor heater relay is used on
those models with two carburetor
heaters per carburetor. Models with
only one heater per carburetor do not
use a carburetor heater relay.
1. Remove the carburetor heater relay as described
below.
2. Use jumpers to connect the battery positive ter-
minal to the brown/yellow terminal (A, Figure 79)
on the relay and connect the battery negative termi-
nal to the relay's sky blue terminal (B).
3. If using an analog ohmmeter, set it to the R × 1
scale.
4. Connect the ohmmeter positive test lead to the
brown/black terminal (D, Figure 79) in the relay,
and connect the negative test lead to the relay's
black/yellow terminal (C).
5. If the ohmmeter does not show continuity, re-
place the carburetor heater relay.
Carburetor Heater Relay
Removal/Installation
(Europe and Australia Models)
1. Remove the side cover from the right side as de-
scribed in Chapter Fourteen.
2. The carburetor heater relay sits in the bottom of
the battery box just to the rear of the voltage regula-
tor.
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