Kawasaki STX-15F service manual Fuel Level Sensor Inspection, Throttle Sensor Removal/Installation

ELECTRICAL SYSTEM 14-55

Sensors

•Rotate the waterwheel by hand slowly.

•Measure the output voltage of the speed sensor.

G/R (+), BK/W (–) → 0 ∼ battery voltage; twice a rotation (Rotate it slowly.)

If the voltage does not rise from zero to battery voltage twice a rotation, replace the sensor.

•Measurespeeds. the output voltage of the sensor at higher ○Rotate the waterwheel in a fair speed by air.

G/R (+), BK/W (–) → approx. 5 V

If the sensor voltage does not reach 5 volts when spun with compressed air, replace the sensor.

Fuel Level Sensor Inspection

•Open the front storage compartment cover.

•Disconnect the fuel level sensor 2-pin connector.

•Loosen the clamp, and remove the fuel level sensor out of the fuel tank.

•Set the hand tester (ohmmeter) to the × 1 kΩ range.

Special Tool - Hand Tester: 57001-1394

•Connect the tester leads the W/R and BK/W leads to check the switching operation of the float.

Meter Reading

When sensor is held upright [A]: approx. 8.03 kΩ

When sensor is held upside down [B]: approx. 0 Ω

The meter should read as specified. If it does not, replace the fuel level sensor.

Throttle Sensor Removal/Installation

•Refer to Throttle Sensor Removal/Installation in the Fuel System chapter.