I am trying to tune my little motor, (I have a related post under "Evinrude 7.2 waterpump") <br /><br />#1 --Is there a way to confirm accurate timing on a Evinruse 7.5? I have the plate screwed down with in the same location as to before rebuild. It seems to run well in the test tub, But I hear a pinging when I shut her down.<br /><br />#2 -- What is the correct Gap for the Plugs?