Correct procedures for compression test on g60 engine

Hi folks , can anybody tell me the correct way to do a compression test on my engine? The timing belt broke and it won’t restart after I fitted a new belt. I’m not sure about the right way to perform a test . The test will be done with cold engine . So do I remove 4 spark plugs at the same time? Then test each cylinder with all plugs out or just remove one spark plug test cylinder then refit plug and remove next plug in line and check that?Thanks again


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