LONCIN G250F - 1.7 Troubleshooting Common Issues

Section 1 Safety and General Information
Oil is sticky at
low temperature
Oil is good
1.7 Troubleshooting
a. Possible cause
b. Starting trouble at low temperature
1. First, check fuel level
2. Check oil
3. Reassemble spark plug and
check electrode
4. Put the spark plug on the cap,
connect electrode to grounding
then, pull the starter and check
igniting.
Add fuel and restart
No fuel
Have fuel
Change the correct oil make
Dry
Wet
Check fuel tube or filter clogged
Check carburetor, nozzle tube
clogged.
Wash electrode, and check
throttle open.
If overflowing, check float valve
No or weak
spark
Replace new spark plug, recheck the
igniting state. Check high voltage lead if
switching off or broken or creepaging.
Check igniter coils.
Good spark
Starting trouble
at low
temperature
Incorrect oil make
Primer pump or primer pump hose damage
Igniter coil trouble
Wrong igniter coil gap
Carburetor trouble
Spark plug trouble
Governor adjusting improper
Wrong valve gap
Valve or valve retainer damaged
Cylinder, piston or piston ring damaged
High speed abnormal
Insufficient
power
Unstable RPM and pre-fire
1-8