MMD Equipment IGR1000 - Manual (Page 20)

MMD PowerPro Inverter Generators • IGR1000P • IGR2000P • IGR2600HP (041715) MMD PowerPro Inverter Generators • IGR1000P • IGR2000P • IGR2600HP (041715) Page 38 Page 39
3. SPARK PLUG MAINTENANCE
To ensure proper engine operation, the spark plug must be properly gapped and free
of deposits.
a. Remove the spark plug maintenance cover.
b. Remove the spark plug cap.
c. Clean any debris from around the spark plug base.
d. Use the wrench provided to remove the spark plug.
e. Visually inspect the spark plug. Discard if the insulator is cracked or chipped.
f. Clean the spark plug with a wire brush if it is to be reused.
g. Measure the plug gap with a feeler gauge. The gap should be 0.024-0.028in (0.6-
0.7mm). Correct as necessary by carefully bending the side electrode.
h. Install the spark plug carefully, by hand, to avoid cross-threading.
i. After a new spark plug has been installed by hand, it should be tightened 1/2
turn with a wrench to compress its washer. If a used plug is being reinstalled, it
should only require 1/8 to 1/4 turn after being seated.
j. Reinstall the spark plug cap on the spark plug securely.
k. Reinstall the spark plug maintenance cover.
SPARK PLUG
MAINTENANCE
COVER
HANDLE BAR
PLUG WRENCH
SPARK PLUG CAP
n The spark plug must be securely tightened. An improperly tightened plug can
become very hot and possibly damage the generator.
n Never use a spark plug with an improper heat range.
n Never use a spark plug without damping resistance or it will cause no AC output.