tecnotest STARGAS Manuel D'utilisation page 40

STANDARD TEST ________________________________________________________________________ STARGAS
Possible causes for CO - CO
CO
HC
CO
2
O
2
36
- HC and O
2
•
Wrong carburation adjustment
•
Dirty or obstructed air filter
•
Defective enrichment of the heating phase
•
Defective enrichment of the acceleration
•
Defective spark plugs
•
Defective pressure regulator
•
IGNITION LEAKAGES:
Defective reducer contacts
Defective spark plug cables
Wrong advance
Defective spark plugs
•
INCOMPLETE COMBUSTION:
Lean mixture
Defective suction circuit tightness
•
MECHANICAL DEFECTS:
Insufficient compression
Valves that are not tight
•
Exhaust system tightness
•
Exhaust system tightness
•
Rich mixture
•
Defective Lambda Probe
wrong values
2
OPERATING INSTRUCTIONS