10/15-Hour Maintenance
Every 10 to 15 hours of operation:
■
Remove and clean the spark plug.
Adjust the spark plug electrode gap to
0.024 in./0.6 - 0.7 mm.
If the spark plug must be replaced,
use only an NGK BMR6A or equivalent
resistor type spark plug of the correct
heat range. See Figure 14.
CAUTION!
Before removing the spark plug,
clean the area around the plug to
prevent dirt and debris from getting
into the engine's internal parts.
NOTE:
The NGK BMR6A also meets the require-
ments for electro magnetic compliance
(EMC).
50-hour Maintenance
Remove and replace the fuel filter
element.
■
Use a hooked wire to extract the fuel
filter from inside the fuel tank. See
Figure 15.
Before reinstalling the new filter element,
inspect the condition of all the fuel system
components (fuel pick-up line, fuel return
line, tank vent line, tank vent, fuel cap and
fuel tank).
CAUTION!
Make sure you do not pierce the fuel
line with the end of the hooked wire.
The line is delicate and can be dam-
aged easily.
10
Figure 14
If damage, splitting or deterioration
is noted, the unit should be removed
from service until it can be inspected or
repaired by a Shindaiwa-trained service
technician.
Clean the spark plug
and check the gap at
the electrode.
0.024 in.
(0.6 mm)
Figure 15
Filter Element
M23016
Hooked
Wire