Idle Speed & Mixture: Notes
NOTE:
Idle mixture is not adjustable. If idle mixture is incorrect, see Figure
. If ignition timing is not within specifications, see appropriate articles:
- With engine cold, ensure roller near screw "B" is centered on fast idle cam. See Fig 1 . Warm engine to operating temperature. At 130-149°F (55-65°C), wax rod should extend fully and fast idle cam should separate from roller. If wax rod does not operate as described, replace wax rod or adjust separation point.
- Turn screw "B" until separation point is as described in step 1). See Fig 2 . To adjust fast idle cam opening, turn screw "A". U sing screw "A", align points on fast idle cam with roller at corresponding temperature. See FAST IDLE CAM OPENING SPECIFICATIONS table.
FAST IDLE CAM OPENING SPECIFICATIONS
| Temperature °F (°C) | Position |
|---|---|
| -5 (-20) | A |
| 32 (0) | B |
| 77 (25) | C |
| 140 (60) | D |