Hyundai HYT2622-II User Manual page 16

4.3.1.8. Install/reinstall the spark plug carefully by hand.
4.3.1.9. Once the spark plug has been seated, tighten it with a spark plug wrench.
4.3.1.10. Push the spark plug cap onto spark plug.
4.3.2. Cleaning.
4.3.2.1. Keep your machine clean, the outside of the machine can be cleaned using a damp
soft cloth with a mild detergent if required, never use water to clean the machine as it
may cause damage to internal parts.
4.3.2.2. Some maintenance products and solvents may damage the plastic parts, these
include products containing benzene, chloride and ammonia.
4.3.2.3. Take special care to keep the ventilation inlets /outlets free from obstruction.
Cleaning with a soft brush followed by a compressed air jet will usually be sufficient to
ensure acceptable internal cleanliness.
4.3.2.4. Wear eye and hand protection when carrying out cleaning.
4.3.3. Carburettor adjustment.
4.3.3.1. The carburettor governs the engine's speed via the throttle control. Air and fuel are
mixed in the carburettor. The air/fuel mixture is adjustable. Correct adjustment is
essential to get the best performance from the machine.
4.3.3.2. Adjusting the carburettor means that the engine is adapted to local operating
conditions, e.g. climate, altitude, petrol and the type of 2-stroke oil.
4.3.3.3. The engine has been tested in the factory with initial adjustment.
4.3.3.4. The user need not adjust the carburettor, if it continues to run at peak performance.
4.3.3.5. Should the machines performance gets worse contact an authorised service centre
who can adjust the carburettor accordingly?
4.3.4. Adjusting the idle speed.
4.3.4.1. A screw just behind air filter cover regulates
the throttle setting at idle speed. If it's necessary
the user can adjust the idle speed.
4.3.4.2. Before any adjustment, make sure that the
air filter is clean and the air filter cover is fitted.
4.3.4.3. Turn the screw clockwise can give a higher
idle speed; turning it anti-clockwise gives a lower
idle speed.
Page 16
Adjusting screw
Rev 2