speakrdude
Well-Known Member
- Feb 21, 2009
- 1,214
- Boat Info
- 2002 Sea Ray 340 DA
Raymarine C80 Tri Data
- Engines
- twin 6.2 MX MPI
Acquired boat last year and starboard 6.2 has always had a problem going over 4k rpm, and then slowly falls to 3500.
Engine was rebuilt prior to my purchase. Idles and runs smoothly.
Great oil pressure and normal temps.
Have never owned an MPI before or cool fuel type.
Where should I start?
Basic stuff? Plugs, wires, rotor, cap?
Or injectors, cool fuel area?
How to diagnose?
Have done basic maintenence.
Oil change, fuel water seperator...
Thanks,
Jim
Engine was rebuilt prior to my purchase. Idles and runs smoothly.
Great oil pressure and normal temps.
Have never owned an MPI before or cool fuel type.
Where should I start?
Basic stuff? Plugs, wires, rotor, cap?
Or injectors, cool fuel area?
How to diagnose?
Have done basic maintenence.
Oil change, fuel water seperator...
Thanks,
Jim