3. Start the engine and run at idle. Check the idle speed and compare to specifications in Table 11. If necessary, adjust engine speed to idle specification as described in this chapter.

4. Point the timing light at the timing light inspection hole (Figure 79). If the ignition is properly timed, the timing bar will be aligned as shown in Figure 80 or Figure 81. If the marks are not correctly aligned, perform the following.

5A. 1966-1969: Slightly loosen the circuit breaker clamp (Figure 82). Then rotate the circuit breaker housing as required until the ignition timing is correct. Tighten the clamp and recheck the timing. 5B. 1970-early 1978: Remove the points cover from the right-hand side. Slightly loosen both timing plate screws (A, Figure 83). Then turn the timing plate (B, Figure 83) as required, using a screwdriver in the notch (C, Figure 83). Tighten the timing plate screws and recheck the timing. Reinstall the points cover.

6. Shut the engine off. Disconnect and remove all test equipment. Remove the clear plastic timing hole plug and reinstall the solid plug.


Sensor Air Gap

Inspect the sensor air gap according to the maintenance schedule.

1. Disconnect the spark plug leads at the spark plugs. Remove the spark plugs.

2. Remove the ignition timing cover.

3. Turn the crankshaft and center the wide rotor lobe opposite the sensor (Figure 84).

4. Measure the gap between the sensor and the rotor with a flat non-magnetic feeler gauge. It should be 0.004-0.006 in. (0.10-0.15 mm). If the gap is incorrect, loosen the 2 screws that attach the sensor (Figure 85) and move the sensor until the gap is correct. Then, holding the sensor steady, tighten the screws.

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