Spark plugs (continued), Ignition timing, Checking ignition wires – Generac 86640 User Manual
Page 83
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Spark Plugs (Continued)
Ignition Timing
Use an automotive timing iight to check and adjust
ignition timing. A timing mark is provided on the crankshaft
pulley and a degree indicator is also provided. Set timing with
the engine running at no-load as follows:
IGNITION TIMING AT 1860 RPM
21‘BTDC
Checking Ignition Wires
Carefully inspect high tension leads for damage, cracks,
burned terminals, proper fit. Measure the resistance of each
wire (Figure 8). Shake the wires during the test.
IGNITION WIRE RESISTANCE
Less than 30,000 ohms
Figure 9. Ignition Timing
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