How to use the gas cylinder pressure gauge?

The use method of cylinder pressure gauge is as follows: 1. Start the engine to warm up first, then turn it off, remove the spark plug, and connect the cylinder pressure gauge to the threaded hole of the spark plug in the cylinder head with some accessories;

2. Then turn the throttle knob to the full open position, press the start button or press the pedal lever until the reading of the cylinder pressure gauge stops rising, and the maximum compression pressure in the cylinder can be read from the meter;

3. Repeat the measurement for 2-3 times, and finally take the average value as the compression pressure in the cylinder.

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