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Home >> Jeep >> 1987 >> Wrangler L6-258 4.2L VIN C 2-bbl >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Ignition Timing >> Adjustments
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Ignition Timing: Adjustments


Carburetted models only.

Set timing at slow idle and Before Top Dead Center, unless otherwise specified. Disconnect and plug distributor vacuum line.

Timing MUST be set to specifications shown on emission label if different from setting listed.