3. Measure the plug gap with a feeler gauge. The gap should be 0.7‐0.8mm (0.028‐0.031 in), correct as
necessary by bending the side electrode.
4. Attach the plug washer, thread the plug in by hand to prevent cross‐threading.
5. When mounting a new spark plug, you should screw 1/2 more thread with the wrench after the washer is
compressed. If you are mounting an old one, you should only screw 1/8‐1/4 more thread.
CAUTION
The spark plug must be securely tightened. An improperly tightened plug can become very hot and possibly
damage the engine. Never use a spark plug with an improper heat range.
CLEANING
CAUTION
Do not use a water hose or pressure washer to clean the engine. Water can damage the engine or
contaminate the fuel system.
• Keep your machine clean. Thoroughly clean the machine at the end of each use, paying attention to
stones or mud in and around the tines.
• Clean the engine regularly with a cloth or brush. Keep the cooling system (blower housing area) clean to
permit proper air circulation which is essential to engine performance and life. Be certain to remove all
dust, dirt and combustible debris from exhaust area.
STORAGE & TRANSPORT
The following steps should be taken to prepare your lawn scarifier for storage.
1. Empty the tank.
a. Empty the petrol tank with a suction pump.
CAUTION
Do not drain the petrol in enclosed spaces, in close proximity of open fire, etc.
Do not smoke! Petrol fumes can cause explosion or fire.
b. Start the engine and let it run until it has used up all remaining petrol and stalls.
c. Remove the spark plug. Use an oil can to fill approx. 20 ml oil into the combustion chamber. Operate
the starter to evenly distribute the oil in the combustion chamber. Replace the spark plug.
2. Store in a dry, clean and frost‐protected place, out of reach of unauthorised persons.
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