WASHING SEDIMENT CUP
SPARK PLUG
(First check fuel tank for fuel, if having, drain the fuel in the fuel
tank completely.)
3. Inspect the spark plug. Replace it if the electrodes are worn, or
if the insulator is cracked or chipped.
4. Measure the spark plug electrode gap with a suitable gauge.
The gap should be 0.028 - 0.031 in (0.70 - 0.80 mm). Correct
the gap, if necessary.
5. Install the spark plug carefully, by hand, to avoid cross-
threading.
6. After the spark plug seats, tighten with a spark plug wrench to
compress the seal.
If reinstalling the used spark plug, tighten 1/8 - 1/4 turn after
the spark plug seats.
If installing a new spark plug, tighten 1/2 turn after the spark
plug seats.
1. Disconnect the spark plug cap, and remove any dirt from
around the spark plug area.
2. Remove the spark plug with a spark plug wrench.
7. Plug the spark plug wire onto the top of the spark plug.
Recommended spark plugs: E7RTC or other equivalents.
Notice:
An incorrect spark plug can cause engine damage.
Notice:
A loose spark plug can overheat and damage the
engine. Over tightening the spark plug can damage
the threads in the cylinder head.
Figure 10
Figure 11
Figure 9
3. Clean the air cleaner, cover and rubber gasket, preventing dust
entering into carburetor.
4. Reassemble the foam element, paying attention to rubber
gasket underneath the element.
5. Reassemble the air cleaner, and tighten the wing nut securely.
1. Remove the fuel sediment cup and O-ring.
2. Wash the sediment cup and O-ring in nonflammable solvent,
and dry them thoroughly.
3. Place the O-ring in the fuel valve, and install the sediment cup.
Tighten the sediment cup securely.
4. Move the fuel valve to the On position, and check for leaks.
Replace the O-ring if there is any leakage.
Spark Plug Wrench
0.028 ~ 0.031 in
(0.70 ~ 0.80 mm)
O-ring
Sediment cup
ADJUSTING IDLE SPEED
1. Start the engine outdoors, and allow it to warm up to operating
temperature.
2. Move the throttle lever to its slowest position.
3. Turn the idle speed screw to obtain the standard idle speed.
Standard idle speed: 2000±150 rpm.
Screw
12
Gasoline Engine
»
Operator’s Manual
Maintenance
|
LC152F-1.indd 12
2017/3/21 15:12:19
Summary of Contents for LC152F-1
Page 18: ...17...
