hey you having any beeping sounds? you know like when you first start the boat you should hear a beep? if warning beeps count how many beeps or if its one long beep? i am having the same problem i have 4 beeps then one long beep and it slows down when i get up on it they are telling me i have no temp sensor i have 2002 challager 240 and they are saying i have a blocked cylinder 2 try flushing it out make sure water is coming out.
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