MAINTENANCE
2.20
SPARK PLUG
A
330 Engine
1. Removesparkplughightensionlead. Cleanplug
area so no dirt and debris can fall into engine
when plug is removed.
2. Remove spark plug.
3. Inspect electrodes for wear and carbon buildup.
Look for a sharp outer edge with no rounding or
erosion of the electrodes.
Inpsect electrode for
wear and buildup
4. Clean with electrical contact cleaner or a glass
bead spark plug cleaner only. CAUTION: A wire
brush or coated abrasive should not be used.
5. Measure gap with a wire gauge. Refer to
specifications forproper spark plugtype andgap.
Adjust gap if necessary by bending the side
electrode carefully .
.036″ (.9 mm)
Spark Plug Gap
6. If necessary, replacespark plug with proper type.
CAUTION: Severe engine damage may occur if
the incorrect spark plug is used.
7. Apply a small amount of anti-seize compound to
the spark plug threads.
8. Installsparkplugandtorqueto9--11ft. lbs(12--14
Nm).
Recommended Spark Plug:
NGK BKR6E
Spark Plug Torque: 9--11 Ft. Lbs.
(12--14 Nm)
IGNITION TIMING
Refer to Electrical chapter for ignition timing
procedure.
Ignition Timing:
30°±2° BTDC@5000RPM
ENGINE-TO-FRAME GROUND
Inspectengine-to-framegroundcableconnection. Be
sure it is clean and tight.
Engine Ground Strap
MAIN AIR FILTER CLEANING
It is advisable to replace the filter when it is dirty.
However , in an emergency it is permissible to clean
the main filter if you observe the following practices.
G Never immerse the filter in water
since dirt can be transferred to the
clean air side of the filter.
G If compressed air is used never
exceedapressureof 40PSI. Always
use a dispersion type nozzle to
prevent filterdamageand cleanfrom
the inside to the outside.
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