Checking The Knock Sensor - Yamaha F200B Service Manual

e
a
2
1
Wiring harness continuity:
a Terminal 1–e Terminal 12
a Terminal 2–e Terminal 18
11. Connect the engine
NOTICE: Make sure that the rubber
seal is installed properly in the engine
ECM coupler.
12. Install the engine ECM, and then tighten
the engine ECM bolts to the specified
torque.
Engine ECM bolt:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
13. Install the engine ECM cover.
14. Connect the neutral switch coupler.

Checking the knock sensor

1. Remove the engine ECM cover.
2. Disconnect the knock sensor coupler a.
a
3. Measure the knock sensor resistance.
12
18
ECM coupler.
Ignition unit and component
Knock sensor resistance (reference data):
504.0–616.0 kΩ at 20 °C (68 °F)
4. Remove the engine ECM, and then dis-
connect the engine ECM coupler b.
b
5. Check the wiring harness for continuity.
b
a
1
Wiring harness continuity:
a Terminal 1–b Terminal 8
6. Connect the engine
NOTICE: Make sure that the rubber
seal is installed properly in the engine
ECM coupler.
7. Install the engine ECM, and then tighten
the engine ECM bolts to the specified
torque.
Engine ECM bolt:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
5
8
ECM coupler.
5-64