DeVillbiss Air Power Company PowerBack GM1000 - Manual (Page 17)

3. Remove the muffler screen.
4. Clean the muffler screen using a
wire brush.
5. Replace muffler screen and secure
in place.
6. Replace and secure panel.
17- ENG A04669
Screws
Screws
Fasteners with isolators
Muffler
Screen
Remove
Screw
and Nut
Replace Spark Plug
Change the spark plug every 100 hours
of operation or once each year,
whichever comes first. This will help your
engine to start easier and run better.
NOTE: Use the spark plug wrench and
screwdriver supplied to remove spark
plug. The spark plug is found under the
top panel opposite the controls.
Resistor
.030" (0.76 MM)
Wire Gauge
NOTE:
Standard spark plug: BPR4ES (NGK)
Spark Plug Gap: 0.7-0.8 mm
(0.028 -0.031 in)