Pre-Start Checks:
1. Make sure the strimmer is assembled properly.
2. Fill the fuel tank with fresh, unleaded petrol.
3. Check the oil level and add more oil if needed.
4. Connect the spark plug wire.
Starting the Engine:
1. Engage the throttle lever.
2. Press and hold the priming button a few times to pump fuel into the carburetor.
3. Set the choke to the "On" or "Closed" position if the engine is cold. Otherwise, leave it in the "Off" or "Open" position.
4. Pull the starter cord quickly and firmly until the engine starts.
5. If the engine does not start, repeat steps 3 and 4.
6. Once the engine starts, release the choke lever.
Adjustments:
1. Adjust the throttle lever to increase or decrease the engine speed.
2. Adjust the cutting height by moving the cutting head up or down.
Safety Precautions:
1. Always wear appropriate safety gear, including eye protection and hearing protection.
2. Keep the strimmer away from flammable objects and liquids.
3. Never operate the strimmer in wet conditions.
4. Do not let children or inexperienced individuals use the strimmer.
5. Store the strimmer in a cool, dry place out of reach of children.
Note: Refer to the specific user manual for your Lawnflite S990 strimmer for additional instructions and safety guidelines.