I boat at 7000 feet, 190 Sea Ray Sundeck with a 2001 Optimax 150. Motor runs well but is a little anemic.
On my motorcycles I open up the air box at altitude, and the ECU adjusts quite well. Results is slightly better power. Can I do this to my Merc?
On my motorcycles I open up the air box at altitude, and the ECU adjusts quite well. Results is slightly better power. Can I do this to my Merc?
