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2. “How-To” Maintenance
Engine Oil Change
Clean Spark Plug
Clean Carbon Brush
1. Drain oil by removing the drain
plug and the oil gauge while
engine is warm.
2. Reinstall the drain plug and fill
the engine with oil until it
reaches the upper level on the oil
filler cap.
3. Clean the oil on the panel.
Dispose of used oil in local
authority disposal site.
1. If the plug is contaminated
with carbon, remove it using a
plug cleaner and wire brush.
2. Adjust the electrode gap to 0.7
to 0.8 mm.
The brush is the area which touches
the slip ring, and its surface must be
kept smooth.
If the brush becomes excessively
worn, its contact pressure with
the slip ring changes and causes a
roughened surface on the slip
ring, resulting in irregular
generator performance.
Check the brush every 300 hours
or if generator performance is
irregular.
If the brush is 0.2 in (5mm) long
or less, replace it with a new one.
Oil Gauge
Oil Drain Plug
WARNING
Engine oil may be hot.
Engine
GT241/400/600
GT1000/GT1300
Manufacturer
NGK
Bosch
NGK
Denso
Champion
Bosch
Product No.
BP6RSH
E6RTC
BPR5ES
W16EPR
RN11YC
WR8DC+
Clean Air Filter
1. Unscrew the air filter cover;
2. Remove filter element and wash
well in solvent;
3. Pour a small amount of oil onto the
filter element and gently squeeze out
any excess oil;
4. Replace the filter element and air
filter cover;
5. Be sure the filter cover seals
properly all around.
Element Holder
Element
5 mm
10~11mm
Length when new
Flange bolts
Brush holder
Bracket cover
Flange bolts
Slip ring
Brush
STORAGE
OIL
OPEN
Drain screw
Besides draining fuel from fuel tank, the
following procedures should be followed
prior to storage of your generator for
periods of 3 months or longer.
1. Turn fuel shut off to “OPEN” position.
2. Loosen the drain screw on the side of
the carburetor float chamber, and drain
the fuel completely.
NOTE
1) There are two screws on carburetor.
The vertical one is the screw to hold the
carburetor float chamber; the other one
on the side of the carburetor float
chamber is the drain screw.
2) Tighten the drain screw very carefully
to avoid damaging the fuel cup.
3. Remove the spark plug, pour 2 to 3 cc of
engine oil into the cylinder, and turn the
crank shaft several times.
4. Replace the spark plug and pull starter
handle until resistance is felt.
5. Store the generator in a well ventilated,
low humidity area.
Let engine cool at least 2 minutes before removing
fuel cap. Loosen cap slowly to relieve pressure in
tank.
