iPower GXS4300iDC - Air Filter Maintenance; Air Filter Cleaning and Installation; Spark Plug Maintenance and Gapping

Page 27
Air Filter Maintenance
Spark Plug Maintenance
The spark plug must be properly gapped and free of
deposits in order to ensure proper engine operation.
To check:
1. Remove the spark plug cover(C).
2. Remove the spark plug cap (B).
3. Clean any dirt from around base of spark plug.
4. Remove spark plug (A) using provided wrench.
5. Inspect spark plug for damage, and clean with a
wire brush before reinstalling. If insulator is
cracked or chipped, spark plug should be replaced.
6. Measure plug gap. The correct gap is 0.028-0.031
in. (0.7-0.8 mm). To widen gap, if necessary,
carefully bend the ground (top) electrode. To
lessen gap, gently tap ground electrode on a hard
surface.
7. Seat spark plug in position; thread in by hand to
prevent cross-threading.
8. Tighten with wrench to compress washer. If spark
plug is new, use 1/2 turn to compress washer
appropriate amount. If reusing old spark plug, use
1/8 to 1/4 turn for proper washer compression.
NOTE:
An improperly tightened spark plug will become
very hot and could damage the engine.
9. Reinstall the spark plug cap (B).
0.002~0.003 inch
(0.06~0.09 mm)
0.002~0.003 inch
(0.06~0.09 mm)
10-12 N·M 10-12 N·M
Intake Valve Exhaust Valve
Valve
Clearance
Torque
0.7 - 0.8 mm
0.028 - 0.031 in.
Valve Clearance
Important: Please contact Authorized Service Center
for service assistance. Proper valve clearance is
essential for prolonging the life of the engine. Check
valve clearance per maintenance schedule.
Checking and adjusting valve clearance must be
done when the engine is cold.
NOTICE
1. Unscrew the bolts
remove the maintenance cover (A).
2. Remove and air filter cover plate (C).
3. Take out the filter element(D).
4. If the filter element is dirty, wash it with warm
soap and clean water and dry it.
5. Apply a layer of engine lubricant on the filter
element and squeeze it out.
6. Reinstall the filter element into the air cleaner
unit.
7. Reinstall the air filter cover plate (C).
8. Reinstall the side maintenance cover(A) of the
unit.
D
C
A
B
A - Spark plug
B - Spark plug cap
C - Spark plug cover
C
A
B