Hello, I am purchasing a pontoon with the '07 Merc 115 EFI, it was having the same idle problems but I am curious if your boat was running properly besides? Mine will not plane out and will only run about 20 mph at 3,000 RPMs at full throttle. Were you having a similar issue? FYI, this is a 22' tritoon, it should to 35 with this motor.
