CONTENTS
INTERIOR WHISTLE
WET, OILY COATINGCONTENTS
FAULTY
COMPONENTS
ACCESSORIES AND MISC.
SPARK PLUGS
DEFECTIVE INSULATOR OR ELECTRODES
CONDITION(S)
- SPARK PLUG HAS BROKEN PLUG INSULATOR (FROM DETONATION) OR MELTED ELECTRODES (FROM PREIGNITION)
- ACCOMPANIED BY KNOCKS OR PINGS
POTENTIAL CAUSE(S)
CHECK THESE FIRST:
1. ADVANCED IGNITION TIMING
Have ignition timing professionally retarded.
Install new spark plug(s).2. INFERIOR OR LOW OCTANE GASOLINE
Utilize higher quality or higher octane gasoline.
Install new spark plug(s).3. LEAN FUEL/AIR MIXTURE
Have fuel/air mixture professionally enriched.
Install new spark plug(s).CHECK THESE NEXT:
4. ENGINE OVERHEATING
Have cause of engine overheating professionally corrected.
Install new spark plug(s).5. SPARK PLUG HEAT RANGE TOO HIGH
Install new spark plug(s) with lower heat range.6. ENGINE LUGGING
Alter driving habits.
Install new spark plug(s).CHECK THESE LAST:
7. CYLINDER DEPOSITS (HIGHER COMPRESSION RATIO)
Alter driving habits.
Install new spark plug(s).8. BURNED EXHAUST VALVES
Have valve lash professionally adjusted.
Install new spark plug(s).9. DIRTY CARBURETOR
Clean carburetor.
Install new spark plug(s).IN EVERY CASE, REPLACE YOUR SPARK PLUGS.
CONTENTS INTERIOR WHISTLE WET, OILY COATING