350 MAG MPI stumbling. Need some help
#12
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Joined: Jan 2021
Posts: 309
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Just for S&G's, check the wiring going to the fuel pump. My starboard engine was doing that and I found out the previous owner rigged a splice for the positive wire that would come loose and then settle into place when I got on plane. IF he were present when I found it, I'd have had to kick him in his junk and then send him on a one way bus trip to Detroit. 

#13
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Joined: Apr 2010
Posts: 897
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From: Daniels, WV
Unhooked the shift interrupt switch and jumpered the harness side with a wire. Boat runs like a top but I’d obviously difficult to shift with the interrupter disabled. Ordering a switch in the morning




