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I recently purchased a 2002 17ft Sea Pro with a 2002 90hp Yamaha. The RPM gauge jumps up and down erratically, but the engine itself runs great. When off, the RPM gauge shows about 1200. Does this sound like the RPM gauge is shot, or could there be some kind of grounding or wiring issues...
I have a 1993 225 Yamaha (mod. No. 225 TX RR) on a 24 Proline WAC that I have owned the past 12 years. Recently, the engine overheat buzzer and automatic rpm reduction engaged within 30 seconds of getting boat on plane. Within one minute, overheat buzzer shuts off and I can idle at up to about...
