Qualcast QGTP25 Original Instructions Manual page 24

4. Position the spark plug carefully by hand, to avoid cross-threading.
5. After the spark plug is seated, tighten with the spanner to compress the washer.
Cleaning the air filter
Soiled air filters reduce the engine power by supplying too little air to the carburettor.
Regular checks are therefore essential.
• Unclip the air filter cover and remove the sponge filter element.
• To avoid objects falling into the air tank, replace the air filter cover.
• Wash the filter element in warm soapy water, rinse and allow to dry naturally.
IMPORTANT: Never clean the air filter with petrol or flammable solvents.
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