by willem
(queensland Australia)
Runs fine at and all day at 4000-4500rpm but when in the open and running at 5000-5500+ for 5-6 mins motor slows or cuts out as like it has gone into factory mode and when you throttle back then up will not go over 1800rpm unless you switch off then restart back to 4000+ till
Once or twice got an alarm but not always (for fuel)
added New fuel filter
Checked fuel supply Good
Not overheating
removed float plug and drained
Used clean fuel and external tank (Boat has inboard tank)
Any suggestions