Running out of ideas for 50 Hp Jet drive 1990<br />model. Engine idles/starts fine. To date we've done the following.<br />New Plugs/Fuel<br />Replaced Head Gasket<br />New Coils/Spark verified<br />Rebuilt Carbs<br />Good Compression 110 all 3 cyls.<br /><br />Under high loads/power setting...
