Tachometer: Testing and Inspection

Tachometer Inspection:

1. Insert paper clip into the engine revolution speed detection terminal provided in the engine compartment, and connect the engine tachometer to the inserted paper clip.

CAUTION: As the tachometer is negative grounded, do not connect battery conversely to prevent damaging transistor and diode.

NOTE: For tachometer inspection, use of a fluxmeter-type engine tachometer is recommended. (Because a fluxmeter only needs to be clipped to the high tension cable.)

Tachometer Inspection:

2. Connect the engine tachometer and compare the engine tachometer and tachometer readings. Replace tachometer if difference is excessive.