Idle Speed & Ignition Timing
Ensure idle speed and ignition timing are set to specification. For idle speed adjustment procedures, see ADJUSTMENTS article in the ENGINE PERFORMANCE Section. Ignition timing is not adjustable.
IDLE SPEED & CO LEVEL
| Application | Idle RPM | CO Level | ||
|---|---|---|---|---|
| Except 940 GLE & Turbo Models | 775 | (1) 0.6% | ||
| 940 GLE | 850 | (1) 0.6% | ||
| Turbo Models | 750 | (1) 0.6% | ||
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IGNITION TIMING (Degrees BTDC @ RPM)
| Application | (1) Timing | ||
|---|---|---|---|
| Except 940 GLE | 12 @ 725-825 | ||
| 940 GLE | 15 @ 800-900 | ||
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