7.5. Checking the spark plug
n Remove the spark plug cap and use a spark plug spanner to remove the spark plug.
o Visually inspect the spark plug and discard it if the electrodes are worn or if the insulation is split or chipped. If it is to be re-used,
clean the spark plug with a wire brush.
p Measure the electrode gap with a feeler gauge. The electrode gap should be from 0.70 to 0.80 mm. Check that the spark plug
washer is in good condition and screw the spark plug in by hand, in order to avoid damaging the threads.
q After fitting the spark plug, tighten it with a spark plug spanner to secure the washer.
Note: when fitting a new spark plug, tighten it by 1/2 turn after it is in place, in order to press the washer tightly. For the
installation of an old spark plug, tighten it by a 1/8–1/4 turn after it is in place, in order to press the washer tightly.
7.6. Checking bolts, nuts and screws
Daily, detailed checks of all nuts, bolts and screws are essential in order to prevent any accidents or breakdowns.
n Inspect the generating set as a whole before and after each use.
o Tighten any loose nuts or screws.
NB: the tightening of cylinder head bolts should be carried out by a specialist. Contact your local agent.
7.7. Cleaning the generating set
n Remove all dust and debris from around the exhaust and clean the generating set using a cloth and a brush (cleaning with a water
jet is not recommended, and cleaning with high-pressure cleaning equipment is forbidden).
o Carefully clean the motor air inlets and outlets and the alternator.
p Check the general condition of the generating set and, if necessary, replace any faulty parts.
8. Storing the generating set
Generating sets, which are to remain unused during a long period of time must undergo certain procedures, in order to keep them in
good condition. Check that the storage area is not dusty or humid. Clean the exterior of the generating set and apply a rustproofing
product.
n Close the fuel tap (OFF position), remove the sediment bowl and drain it.
o Open the fuel tap (ON position) and drain the petrol from the tank into a suitable container.
p Refit the sediment bowl and tighten fully.
q Drain the carburettor by loosening the drain screw. Collect the petrol in a suitable container.
r Change the engine oil.
s Remove the spark plug and pour approximately 15 ml of oil into the cylinder, then refit the spark plug.
t Turn the engine over without starting it to distribute the oil in the cylinder.
u Clean the generating set and cover the engine again to protect it from dust.
v Store the generating set in a clean, dry place.
9. Fault finding
The engine will not
start
Probable causes Remedial action
The generating set is being charged during start-up Take it off charge
Fuel level too low Fill up with fuel
The fuel tap is closed Open the fuel tap
Fuel supply blocked or leaking Have the system repaired
Blocked air filter Clean the air filter
Control on "OFF" or "О"
Place the control on "ON" or "I"
Defective spark plug Replace the spark plug
The engine cuts out
Probable causes Remedial action
Blocked ventilation inlets Clean the air inlet and outlet guards
Probable overcharge Check the charge
No electric current
Probable causes Remedial action
Circuit-breaker tripped Reset the circuit breaker
Circuit-breaker faulty Have it checked, repaired or replaced
Faulty socket Have it checked, repaired or replaced
Faulty appliance supply lead Change the lead
Faulty alternator Have it checked, repaired or replaced
Circuit breaker trips
out
Probable causes Remedial action
Faulty equipment or lead Have it checked, repaired or replaced
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