Forest-Master FM4DDE - Troubleshooting; The engine wont start (Petrol); The motor wont start (Electric)

Forest Master Model: FM6DD/FM4DDE 17
Troubleshooting
Most problems are easy to x. Consult the Troubleshooting Table below for common
problems and their solutions. If you continue to experience problems, or your prob-
lem is not listed, check the forest master website at www.forest-master.com rst as
it is continuously updated. If further help is required, contact our technical line on:
0191 276 6553.
Before performing any maintenance procedure or inspection, stop the engine, wait 5
minutes to allow all parts to cool. Disconnect the spark plug (FM6DD) or the power
cable (FM4DDE).
Troubleshooting
Symptom Possible Cause
The engine won’t
start (Petrol)
• Is the ignition switch in the “ON” position?
• Is the fuel shut-o valve on?
• Are you using fresh, clean fuel? If the fuel is old, change
it. Use a fuel stabilizer if you keep fuel longer than 30
days.
• Is the spark plug clean? If the spark plug is dirty or
cracked, change it. If it’s oily, leave it out, hold a rag over
the plug hole and pull the recoil cord several times to
blow out any oil in the cylinder, then wipe o the plug
and reinsert it.
• Is there sucient oil? Check the engine oil level and if
necessary top up to the correct level.
• Is there dirt in the carburettor? Undo the bolt holding the
oat chamber to the carburettor, empty out any fuel and
clean the inside using fresh, clean petrol. Remove the jet
in the bottom of the carburettor and clean it. Ret the jet
and the oat chamber.
• Is the pull start stuck or has more resistance? Check the
drum for blockages.
The motor won’t
start (Electric)
• Is the plug connected to a power outlet?
• If you’re using an extension cable, only use a wire of
2.5mm
2
with a maximum length of 10m. Smaller or large
wires could result in loss of power to the motor.
• Check the fuse in the plug. If it has blown, change it.
• Check the power cable, the plug and the switch for dam-
age (both the supplied power lead and any extension
cable being used). If there is damage, change it.
• Is the motor too hot? The motor is protected with a
thermistor if overheating. Wait for it to cool down and try
again.