SERVICE ADJUSTMENT PROCEDURES
IGNITION SYSTEM
Ignition Timing Adjustment
Adjustment condition
Coolant temperature: 80 to 90” C ( 170 to 190” F)
Lights and all accessories: OFF
Transmission: N (Neutral)
1. Start engine and run at curb idle speed.
2. Connect tachometer and timing light.
3. Check basic ignition timing and adjust if necessary.
Basic ignition timing . . . . . . . . . . . . . . . 7 + 2” BTDC
4. To adjust ignition timing, loosen distributor mounting
nut and turn distributor housing. (1 EL002)
5. After adjustment, securely tighten mounting nut.
SPARK PLUG CABLE TEST
1. Disconnect spark plug cable from spark plug.
When spark plug cable is pulled out, be sure to pull by
the cable cap. If spark plug is removed by pulling on
cable only open circuit might result.
2. Hold the spark plug cable about 6-8 mm (.24-,3 1 in.)
away from engine proper (grounding portion such as
cylinder block) and crank engine to verify that sparks
are produced.
Cylinder
block
6-8 mm
(.24-.31 in.)
1 E L03:
8-77
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