Specifications

TUNE-UP - ROTARY

rticle

variable resistor to obtain highest idle speed. Turn air adjusting

screw to set idle speed. Turn variable resistor counterclockwise until

idle speed is 780 RPM and then turn resistor clockwise until idle

speed is 800 RPM.

4) Connect vent and vacuum solenoid harness. Install plug

over air adjusting screw. Fill space above variable resistor screw

with adhesive (N304 23 795). Remove tachometer and install fuel filler

cap.

THROTTLE SENSOR

Carbureted Models

1) Warm engine to normal operating temperature. Stop engine

and connect tachometer. Disconnect Brown connector under air cleaner

on carbon canister side of engine.

2) Using 2 voltmeters or 12-volt, 3-watt bulbs, connect

negative lead of each voltmeter to each terminal in connector. Connect

positive leads to "B" terminal of alternator. See Fig. 7.

Fig. 7: Voltmeters Connected to Adjust Throttle Sensor

This applies only to carbureted models.

3) Start engine. Quickly decelerate engine from 3000 RPM and

make sure that current flows to both voltmeters or bulbs at the same

time. If current does not flow at the same time, adjust throttle

sensor.

4) To adjust sensor, remove cap from adjusting screw. Adjust

timing of current flowing to voltmeter "A" in Fig. 7 by turning

adjusting screw. Turning screw clockwise causes current to flow

earlier and turning screw counterclockwise causes current to flow

later. See Fig. 8.

Fig. 8: Throttle Sensor Adjusting Screw Location

This applies to carbureted models.

5) After adjustment, install cap over throttle sensor

adjusting screw. Remove voltmeters and reconnect Brown connector.