Electrical; Spark Plug Inspection - Orion AGB-21G Service Manual

ELECTRICAL/SPARK PLUG INSPECTION

ELECTRICAL

SPARK PLUG INSPECTION

1. Remove:
2. Inspect:
NOTE:
When the engine runs for many hours at low
speeds, the spark plug insulator will become
sooty, even if the engine and carburetor are in
good operating condition.
3. Measure:
4. Clean the plug with a spark plug cleaner
5. Tighten:
NOTE:
Before installing a spark plug, clean the gas-
ket surface and plug surface.
Finger-tighten
torquing to specification
3 - 26
Spark plug
Electrode
Wear/damage Replace.
Insulator color
Normal condition is a medium to light
tan color.
Distinctly different color
engine condition.
Plug gap
Use a wire gauge or thickness gauge.
Out of specification
Spark plug gap:
0.6 ~ 0.7 mm
if necessary.
Spark plug
15 Nm (1.5 m • kg)
the spark plug before
Check the
Regap.
.