Hyundai HYT140 User Manual page 15

5.2. Air Filter.
5.2.1. Your machine will run more efficiently if you clean the air filter after every 8 working hours.
5.2.2. Remove filter, check for contamination and clean as required.
5.2.3. Clean filter by blowing air through it using an air gun not exceeding 30psi.
5.2.4. Never use a brush to clean the filter it will only drive dirt into the fibres of the filter.
5.2.5. Wipe dirt from the air cleaner body by using a moist rag, be careful to prevent dirt or debris
entering the air ducts into the carburetor.
Using old or stale fuel will impair starting and running of machine.
Make sure that the machine has fresh unleaded fuel and always remove fuel before
storing for long periods.
5.3. Carburettor.
5.3.1. Your machine will run more efficiently if you clean the fuel filter at regular intervals.
5.3.2. To drain the carburetor float bowl undo the drain bolt making sure that the washer is not
lost.
5.3.3. Use a suitable container to catch fuel. Take care not to spill fuel and make sure that all spilt
fuel is cleared away safely.
5.3.4. Open fuel valve to make sure all fuel is drained.
5.3.5. Once drained you can release bowl by undoing bowl release bolt on bottom of float bowl,
be sure not to lose the bowl sealing washer.
5.3.6. Remove any remaining fuel from bowl.
5.4. Spark plug.
5.4.1. Spark plug type (or equivalent) F7RTC.
5.4.2. To check spark plug, remove spark plug cap and remove spark plug using the supplied spark
plug wrench.
5.4.3. Clean the spark plug electrode also making sure that there is no damage to the insulator or
electrode.
5.4.4. The spark plug gap should be 0.70mm to 0.80mm adjust as necessary by carefully bending
side electrode.
5.4.5. Install cleaned and adjusted spark plug by hand to avoid cross-threading.
5.4.6. After spark plug seats then tighten as necessary but avoid over-tightening.
5.4.7. Attach spark plug cap.
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