1998 7.4MPI B1 1,040 hours stalling low RPM

CAPTAINJEH

Member
Nov 1, 2007
117
Chain o lakes, IL / Lake MI / Lake Geneva, WI
Boat Info
1998 230 Bow Rider
Engines
7.4 mpi B1
Howdy, It seems to be getting worse. boat runs great anything over 800 rpms. but when coming off plane pulling throttle down it hunts like crazy and sometimes dies. I really have to baby it to make sure it has some gas. for an MPI this confuses me. IAC has been changed new plugs wires all the usual shit done. and yesterday after idling for about 4 mins looking to anchor put in nuetral it died and took 2x to get it started. anyone have any thoughts on this?
 

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