Fuel And Carburation - Hayter SST38/ST42 Operator's Manual

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FUEL AND CARBURATION

Filling the fuel tank:
- Clean around the filler cap and neck of the fuel tank before filling.
- Fill with fresh unleaded petrol from a clean container.
- If a funnel is used ensure that it is clean.
WARNING: PREVENT ACCIDENTS - Never attempt to fill the fuel tank with fuel in the vicinity of
a naked flame or where there is a risk of a spark igniting the petrol.
Fuel Filter:
The fuel filter is designed to remove micro particles and other debris from the fuel before it enters the
engine.
Over a period of time the filter may become contaminated and this will result in poor fuel flow to the engine.
Periodically check the filter as follows:
- Turn the fuel flow tap to the 'Shut' position and then disconnect the fuel pipe from
the engine.
- Turn the fuel flow tap to the 'Open' position and run fuel through the filter and into
a container.
If fuel flows freely then the filter is performing satisfactory. Re-connect the fuel
hose to the engine. It is advisable to renew the filter annually.
Combustion and Cooling Air:
The cooling fan positioned on top of the engine also provides air to the carburettor.
If the engine is difficult to start, stalls or overheats check:
- That the vents in the top of the engine cover are not blocked.
- That there is no debris caught in the cooling fan cover on top of the engine.
- That the air filter cartridges and pre-cleaner are not blocked with debris.
It is advisable to replace the filter cartridge in accordance with the engine manufacturers recommended
intervals.
IMPORTANT: Keep the engine compartment free of grass, leaves and other debris.
MAINTENANCE
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