Engine Tachometer

CURCUIT DIAGRAM

Fig. 13-134

FJ Series

FJ Series

Wirinjg Side Terminal Position

1

2

3

4 i

Tachometer

IG Realy

Tachometer

IG Realy

Tachometer

J_^From Tail

Pick-up Sensor

Pick-up Sensor

J_^From Tail

Wirinjg Side Terminal Position

Tachometer

Fig. 13-135

INSPECTION

Check the resistance between the terminals Resistance: About 500i)

Fig. 13-136

Fig. 13-136

1. Connect a tune-up test tachometer, and start the engine.

2. Compare the tester and tachometer indications, and if the error is too great, replace the tachometer.

1. Do not reverse battery connections as this tachometer is intended only for use in (—) gound vehicles. A reversed connection could damage the transistors and diodes contained inside.

2. In removing or installing the tachometer, be careful not to drop it or subject it to heavy shocks.

Tachometer allowable range

1,000

2,000

3,000

20°C 13V

± 100

± 125

COMPONENTS

BJ, HJ Series Pick-up Sensor

Fig. 13-138

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