Compression test for 1977 115 Evinrude

[Jeff2012]

Can anybody tell me what I need to disconnect to do a compression test on a 1977 115 Evinrude so the motor won't start while I'm testing?
Thank you.

 

[tashasdaddy]

Re: Compression test for 1977 115 Evinrude

remove all the spark plug wires and spark plugs, then screw in tester, turn motor over with key about 4 revolutions.