Apc Zenoah User Manual download pdf (Page 9)

9

Troubleshooting Guide for Gasoline Engines

a) The engine does not start.

The crankshaft

does not rotate

Seizure, intrusion of a foreign substance

The fuel has not been fed to

the carburetor

The fuel has been fed to the

carburetor

The Stop switch has

been turned off

Wiring is disconnected

Disassemble and repair

Disassemble and clean

Clean

Loosened

spark plug

Abrasion or damage of

the cylinder, piston, or

piston ring

Tighten further

Replace

Readjust

Replace

Wet plug

Remove the spark

plug and dry it

The carburetor has

not been properly

adjusted

The fuel is not

suitable

Turn on

Repair

The spark plug does not spark

The spark plug does spark

Clogging inside the

carburetor

Clogging of the fuel

piping

No compression

(normally 7 kg/cm

2

99.5 psi or more)

The crankshaft

rotates

The spark plug is defective

The ignition module is defective

Replace

Replace

The air gap is too large Adjust

The spark plug gap is too large Adjust

Compression adequate

b) The engine stops by itself

It suddenly stops

The crankshaft does not rotate

or is abnormally heavy

The crankshaft

rotates

Out of fuel

Not out of fuel

The carburetor has not beeen properly adjusted

See a)

See a)

Put back

Repair

Use a standard plug

Turn on

Use clean fuel

Replace

The fuel is not fed to the carburetor

Water is mixed in the fuel

Replace

Replace

Refuel

Readjust

It slows down and stops

The plug cap has come off

Wiring disconnection

Spark plug bridge

The Stop switch has

been turned off

Air suction from a carburetor joint or oil seal

Abrasion of the piston ring

Repair

Replace

The fuel is not suitable

Clean

Clogging of the muffler or exhaust port due to carbon

The spark plug heat range is not proper

See c)

Repair

Overheating

Repair

The Stop switch is defective

Switch wiring is disconnected

c) Lower power output

d) The engine does not stop

Overheating

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

Comments to this Manuals

No comments