Date of Issue: February, 2005
© American Honda Motor Co., Inc.
2-11
FG110
e. SPARK TEST
1. Drain the fuel tank or take out the fuel filter from the fuel
tank and drain the gasoline by pressing the carburetor
primer bulb.
2. Remove the spark plug.
Unburned gasoline can ignite if it is left in the cylinder. Pull
the recoil starter several times to release the unburned
gasoline from the cylinder before testing. Do not touch the
flywheel fins when pulling the recoil starter.
3. Install the removed spark plug on the spark plug cap.
4. Ground the negative (–) electrode of the spark plug to the
engine block.
5. Pull the recoil starter to check for sparks.
f. COMPRESSION TEST
1. Drain the fuel tank.
2. Drain the gasoline by pressing the carburetor primer bulb.
3. Remove the spark plug cap and spark plug, and install a
compression gauge in the spark plug hole.
4. Open the throttle wide open and make sure the choke is
open.
5. Pull the recoil starter several times with force and measure
the cylinder compression. Do not touch the flywheel when
pulling the recoil starter.
WARNING
Gasoline is highly flammable and explosive. If ignited,
gasoline can burn you severely.
Before testing the spark plug:
•
Be sure there is no spilled fuel near the engine.
•
Place the spark plug away from the spark plug hole.
Cylinder
compression
@ 2,000 rpm*
0.9~1.1 MPa (9.2~11.2 kgf/cm²,
131~159 psi)
* Decompressor mechanism engaged
COMPRESSION GAUGE
(Commercially available)
SPARK PLUG
Summary of Contents for FG110
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