have a 1985 mariner 150 magnum that has no spark to #'s 1,2,3,5 cyl's. 4&6 have good spark... problem started last weekend,acted like it ran out of gas,fired up but wouldn't stay running,rebuilt fuel pump,replaced plugs....checked comp and is 120 psi across all 6 cyl's....has 2 separate cdi...
