Owner's Manual

PART VI: Troubleshooting Guide
WARNING
Before performing any maintenance procedure or inspection, stop the engine, wait five
minutes to allow all parts to cool. Disconnect the spark plug wire, keeping it away from the
spark plug.
Symptom
Possible Cause
The engine won’t start.
(Please refer to the engine user
manual for engine-specific
procedures.)
Check the SAFETY BAR HELD DOWN to engage the
safety cut-off switch. Check the fuel shut-off valve is ON
Always use fresh, clean petrol. If the petrol is old, change
it. Use a fuel stabilizer if you keep petrol longer than 30
days.
Check the spark plug is 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 off the plug and
reinsert it.
The engine lacks power or is not
running smoothly.
(Please refer to the engine user
manual for engine-specific
procedures.)
Check that the Throttle Lever is in the “FAST” position.
TURN OFF THE CHOKE
Check the air filter is clean. If it’s dirty, change it following
the procedure in the engine manufacturer’s owner’s
manual.
Is the spark plug clean? If it’s fouled or cracked, change it.
If it’s oily, leave it out, hold a rag over the plug hole and
pull your recoil cord several times to blow out any oil in the
cylinder, then wipe off the plug and reinsert it.
Are you using fresh, clean unleaded petrol? If it’s old,
change it. Use a fuel stabilizer if you keep petrol longer
than 30 days.
Does your engine have the right amount of clean oil? If it’s
dirty, change it following the procedure in the engine
manufacturer’s owner’s manual.
Check the oil level and adjust as needed.
Engine smokes.
(Please refer to the engine user
manual for engine-specific
procedures.)
Check the oil level and adjust as needed.
Check the air filter and clean or replace if needed.
You may be using the wrong oil—too light for the
temperature. Refer to your Engine Owner’s Manual for
detailed information.
Clean the cooling fins if they’re dirty.
Machine does not seem to have full
grinding power.
The belts may be too loose and slipping. Adjust or replace
belts as needed.
The teeth may be dull or broken, replace.