Instruction of Gas Cylinder Compression Tester  
Connect the quick coupling's head of air gauge  
assembly to the pipe or the cone rubber hose then  
screw the pipe in or push the rubber hose into the  
spark plug hole.  
Start engine to run at least 4 compression strokes  
or until the pressure of air gauge remains a fix level.  
Then, stop engine and write down the reading on  
air gauge.  
Remove the tester and return air guge to zero. Fit  
the spark plug and the connecting wires back and  
continue the test of the next cylinder.  


886 4 2261 2336@
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