Textron Lycoming IO-540 Series Operator's Manual page 102

TEXTRON LYCOMING OPERATOR'S MANUAL
0-540 & 10-540 SERIES
SECTION 6
TROUBLE-SHOOTING
Experience has proven that the best method of trouble-shooting is to
decide on the various causes of a given trouble and then to eliminate causes
one by one, beginning with the most probable. The following charts list
some of the more common troubles, which may be encountered in main-
taining engines; their probable causes and remedies.
1. TROUBLE-SHOOTING - ENGINE.
TROUBLE
PROBABLE CAUSE REMEDY
Failure of Engine
to Start
Lack of fuel
Overpriming
Defective spark
plugs
Defective ignition
wire
Defective battery
Check if fuel valve is on.
Check fuel system for
leaks. Fill fuel tank. Clean
dirty lines, strainers or
fuel valves.
Leave ignition "off" and
mixture control in "Idle
Cut-Off", open throttle
and "unload" engine by
cranking for a few
seconds. Turn ignition
switch on and proceed to
start in a normal manner.
Clean and adjust or
replace spark plugs.
Check with electric
tester, and replace any
defective wires.
Replace with charged
battery.
6-1