Replacement Part List

Owner’s Manual
25
4. Visually inspect the spark plug. Discard it if the insulator is cracked or chipped. Clean the spark plug with a
wire brush if it is to be reused.
5. Measure the plug gap with a feeler gauge. (Correct as necessary by carefully bending the side electrode.) The gap
should be: 0.70-0.80 mm (0.028-0.031in) （Fig 16）
6. Check that the spark plug washer is in good condition.
7. After the spark plug is seated, tighten with a spark plug in by hand to prevent cross-threading.
8. After the spark plug is seated, tighten with a spark plug wrench to compress the washer
NOTE: THE SPARK PLUG MUST BE SECURELY TIGHTENED. AN IMPROPERLY
TIGHTENED SPARK PLUG CAN BECOME VERY HOT AND COULD DAMAGE THE
ENGINE. NEVER USE SPARK PLUGS WHICH HAVE AN IMPROPER HEAT RANGE.
USE ONLY RECOMMENDED SPARK PLUS OR EQUIVALENT.
Maintenance Guide
Periodic maintenance and adjustment is necessary to keep the generator in good operating
condition.
WARNING! Exhaust gas contains poisonous carbon monoxide. Shut off the engine before
performing any maintenance. If the engine must be run, make sure the areas is well ventilated.
Before each use, inspect the generator. Check for:
- Loose screws
- Misaligned or binding moving parts
- Cracked or broken parts
- Damaged electrical wiring
- Any other condition that may affect safe operation.
• If an engine problem occurs, have it checked by a qualified service technician before further use.
Do not use damaged equipment.
（Fig 16）