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Porsche
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1989
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911 Carrera 4
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Repair and Diagnosis
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Engine Performance
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Adjustments
Engine Performance: Adjustments
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Introduction
Engine Compression
Compression Testing
Valve Clearance
Ignition Timing
Idle Speed, Mixture & Co Level
Cold (Fast) Idle Rpm
Idle Speed
Idle Mixture & Co Level
Throttle Switches
Idle Switch Adjustment
Full Throttle Switch