Fuel Filter; Spark Plug - Maruyama EH230D Manual Del Propietário

1. Loosen the knob and remove the air filter cover.
2. Remove the foam element and filter screen from
the air filter body.
3. Clean the foam element and filter screen with
warm, soapy water. Let the screen and element
dry completely.
4. Apply a light coat of motor oil (SAE 30 or
equivalent viscosity) to the foam element and
squeeze out all excess oil.
5. Reassemble the filter screen and foam element to
the air filter body.
6. Reinstall the air filter cover and tighten the knob.

Fuel Filter

Maintenance Interval
• The fuel filter should be replaced after every 100
hours of operation.
• Fuel filters needing more frequent replacement
may indicate debris in fuel tank.
Fuel Filter Replacement
The fuel filter is attached to the end of the fuel pick-up
hose inside the fuel tank.
Fuel Filter
To replace the fuel filter:
1. Make sure the fuel tank is empty.
2. Remove the fuel cap.
3. Using a wire hook, gently pull the fuel filter out
through the fuel filler opening.
Use caution not to "fishhook" the fuel hose.
Replace immediately if punctured!
4. Grasp the fuel hose next to the fuel filter fitting
and remove the filter, but do not release the hose.
Fuel Pick-up Hose
Wire
5. While still holding on to the fuel hose, attach the
new fuel filter.
6. Drop the new fuel filter back into the fuel tank.
7. Make sure that the fuel filter is not stuck in a cor-
ner of the tank, and that the fuel hose is not dou-
bled over (kinked) before refueling.

Spark Plug

Maintenance Interval
• The spark plug should be removed from the engine
and checked after each 25 hours of operation.
• Replace the spark plug after every 100 hours of
operation.
Spark Plug Maintenance
1. Twist the high tension lead boot on the spark plug
back and forth a couple of times to loosen the
boot, then pull the boot off of the spark plug.
2. Remove the spark plug.
3. Clean the electrodes with a stiff brush.
.024" - .028" (0.6 - 0.7 mm)
4. Adjust the electrode air gap to .024-.028 in. (0.6-
0.7 mm).
5. Replace the spark plug if it is oil-fouled, damaged,
or if the electrodes are worn down.
6. Do not overtighten the spark plug when installing.
The tightening torque is 95-148 in·lbs. (10.7-16.6
N·m).
7. Always use only the specific heat range of spark
plug. This is particularly critical with today's low-
emission engines. For best results, use the exact
replacement.
— US-17 —