PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 2
Nov 30/06
5C8
74-10-00
CHART 1
TROUBLESHOOTING MAGNETOS
Trouble Cause Remedy
Failure of engine to start. Defective spark plugs. Clean and adjust or replace
spark plugs.
Defective ignition wire. Check with electric tester
and replace defective
wires.
Defective battery. Replace with charged
battery.
Improper operation of Check points. Check
magneto breaker. internal timing of magnetos.
Failure of engine to idle Faulty ignition system. Check entire ignition
properly. system.
Low power and uneven Defective spark plugs. Clean and gap or replace
running. spark plugs.
Magneto breaker points not Clean points. Check
working properly. internal timing of magnetos.
Defective ignition wire. Check wire with electric
tester. Replace defective
wire.
Defective spark plug terminal Replace connectors on
connectors. spark plug wire.
Failure of engine to develop Faulty ignition. Tighten all connections.
full power.
Check system with tester.
Check ignition timing.