V1.0
6,500W Gasoline Generator with Electric Start
8630741
3. Clean the housing interior with warm soap and water. Allow to dry before reassembly.
4. Inspect the air filter to see if you can clean it or if it should be discarded. Discard if it is too dirty
and replace with a new filter.
4.1 Clean a dirty air filter with warm water and mild soap or a non-flammable solvent. Replace
the water as necessary, until the water is no longer dirty. Dispose of the oil contaminated
water in accordance with your local by-laws.
NOTICE! Do not use a flammable solvent to clean the foam filter. The solvent may dissolve or
clog the filter.
4.2 Allow air filter to dry.
4.3 Dip the filter into clean engine oil and squeeze out excess. The engine may produce smoke
when started for the first time after the filter is replaced. This is excess oil from the filter
and the effect is only temporary.
5. Reinstall the filter into the housing and secure in place.
6. Install the air filter assembly onto the carburetor and secure.
REPLACING THE SPARK PLUG
NOTICE! Using an incorrect spark plug can cause engine damage. Only replace a spark plug with
a recommended model (see Specification).
The spark plug must be properly gapped and free of deposits for the best performance. Check
local bylaws to see if a resistor spark plug is required to suppress ignition signals. Replace the
included spark plug with a resistor spark plug if required.
1. Remove any dirt from around the spark plug area.
2. Unclip the spark plug lead and remove the spark plug with a spark plug
wrench. This will have a rubber pad inside the socket to protect the spark
plug’s ceramic coating.
3. Inspect the spark plug. Replace it if damaged, badly fouled, the sealing
washer is in poor condition or the electrode is worn.
4. Check the gap with a spark plug gauge as shown in Fig. 7-2. If necessary,
reset the gap (See Specifications).
4.1 Correct the gap by carefully bending the side electrode (Fig. 7-1).
Check the gap after each adjustment.
5. Install the spark plug carefully by hand to avoid cross threading.
6. Tighten the spark plug to the recommended torque until the gasket is compressed (Fig. 7-3).
See Specifications for the correct torque rating.
6.1 Tighten an additional 1/2 to 1/3 turn more with a spark plug wrench if the torque rating isn’t
available.
7. Reconnect the spark plug lead to the spark plug.
CARBURETOR ADJUSTMENT
Never make adjustments to the carburetor. The carburetor was set at the factory to operate
efficiently under most conditions. Only a qualified service technician should adjust the carburetor if
it is required.
MODIFYING THE CARBURETOR FOR HIGH ALTITUDES
At high altitude, the standard air-fuel mixture is too rich, causing increased fuel consumption and
decreased performance. A rich mixture will also foul the spark plug and cause hard starting.
A qualified technician can improve high altitude performance with certain modifications. Have your
carburetor modified if the engine will routinely be operated at altitudes above 5,000 ft (1,524 m). Even
with carburetor modification, engine power will decrease about 3.5% for each 1,000 ft (305 m) increase
in altitude. The effect of altitude on engine power will be greater than this is if no modification is made.
Fig. 7
7-1
7-2
7-3
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