Operation CHARM
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Ford Truck
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1990
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Bronco Full Size L6-300 4.9L
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Ignition Timing
Ignition Timing
Initial Timing
10 degrees before top dead center
NOTE:
Initial timing is measured with engine at normal operating temperature and Spark Output
(SPOUT)
connector disconnected or shorting bar removed.