Spark plug use and maintenance

Correct installation of spark plug
1, according to the specification requirements, use the specified specifications and models of Spark Plugs.

2. The contact surface between the spark plug and the gasoline engine must be clean and flat.

3. When installing spark plugs, copper washers must be installed on the spark plugs to ensure the tightness of the cylinders.

4. When tightening the spark plug, it is best to use a torque wrench to tighten the spark plug according to the specified torque. If there is no torque wrench, the spark plug can be tightened by hand first, and then the socket wrench can be used to screw 3/4 turns.

Spark Plug Maintenance

Under normal circumstances, four-stroke gasoline engine work for 100-200 hours, two-stroke gasoline engine work 30-50 hours, it must be disassembled, cleaned, and adjusted spark plug gaps.

1, cleaning. Dip the spark plug into the gasoline, scrub the dirt with a brush, or gently remove the deposit with a spatula. Do not brush with a metal brush, not to use fire instead of cleaning, so as not to damage the spark plug.

2, adjust. After the spark plug is cleaned and dried, the gap of the spark plug shall be adjusted according to the provisions of the operating instructions of the gasoline engine.

3, keep the spark plug insulator clean, so as not to affect its normal operation.