First let me say thank-you guys for the help getting the old 90 running again, couldn't do it without you. now the tac olny works when it wants to, I tightened all the wires on the back of the tac and also tightened all the wires on the engine but it didn't help one bit. not sure where the tac...
I have a 1989 90 hp 3 cyl. on a 28 ft. pontoon boat, sometimes when I first start it up and head across the lake it will olny run about 3500 rpm and acts really doggie, then like a snap of your finger it will take off like a rocket and run perfict all day. it dosn't miss when it acts doggie but...