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Both 57 EFI cut out at higher RPM

islandtime2

New member
Yesterday the boat ran fine un

Yesterday the boat ran fine under 3500 rpm but over 4000 both engines would momentary cut out.like you hit a kill switch drop about 1000 rmp then kick back in . also the fuel gauge stoped working. any thoughts on where to start?
Thanks Kent
 
Forgot to tell you short the h

Forgot to tell you short the hot lead to the sending unit and the gauge should go to full.it will tell you if the gauge is working.
 
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