Service Manual

41
TROUBLESHOOTING
Issue:
Possible Cause:
Solution:
Check:
Engine Will
Not Start
Generator switch in
the off “0
” position
Turn the generator switch to the correct position.
Start the
engine
Choke knob in the
wrong position
Place the choke knob in the correct position.
Not enough oil in the
engine
Check the oil level. If low, add the recommended oil.
Refer to Engine Oil Level – Check for the proper oil.
Dirty air filter Check the air filter. Clean or replace as needed.
Battery discharged or
defective
If the battery is providing less than 12.7 volts, charge
the battery. If the battery is providing less than 12.4
volts, replace the battery.
No fuel Fill the fuel tank
Old or contaminated
fuel
Drain and refill if necessary.
No fuel at the
carburetor
Make sure the fuel switch is in the on "I" position.
Check the vent in the fuel cap. If vent is plugged clean
the vent.
Not enough fuel to
the engine
Make sure the needle valve is closing properly. Clean
or replace as needed.
Inspect the fuel nozzle. Clean if needed.
Inspect the float. If the float is damaged or sticking,
repair or replace as needed.
Engine flooded
Wait 5 minutes.
Remove and clean the spark plug. Suction out fuel or
let fuel evaporate before
reinstalling spark plug.
No spark
Inspect the spark plug. Clean the spark plug, adjust the
spark plug gap, or replace the spark plug as necessary.
Inspect the spark plug wire. Replace if damaged. Check
the resistance. If the resistance is out of tolerance,
replace the wire.
Inspect the ignition coil. Replace if damaged. Check the
resistances. If any of the resistances are out of
tolerance, replace the ignition coil.
Inspect the gap between the ignition coil and flywheel.
Adjust gap if necessary.
Inspect the magneto. Replace if needed.
Check the wiring to make sure that none of the wires
are shorted to ground.
Cylinder pressure
Inspect the cylinder head bolts to make sure they are
properly torqued to 40±3 N·m. Tighten if needed.
Check the valve clearance and seats. Adjust or repair
as needed.
Inspect the cylinder head gasket. Replace if damaged.
Inspect the cylinder head and cylinder block surfaces
for flatness. Repair or replace if out of tolerance.
Inspect the piston rings. If the piston rings are worn or
broken, replace the piston rings.
If the engine still will
not start:
Rebuild the engine, replace the engine, or consider replacing the unit.