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2003 yamaha AR210 jet boat, tach not working

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Posted on Jan 02, 2017

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SOURCE: I have a Yamaha Tach/Hour Meter 1/10. I cannot turn it off. Boat batteries are disconnected and I have disconnected the tach/hour meter. It keeps flashing

From what I have gathered on the internet, it doesn't turn off. When running it displays RPM, when engine off, displays run time. Estimate for the internal battery was 10 years, but I wouldn't bet on it. This is a sealed unit and priced low enough that after a few years it is a throw away. Liquid Crystal displays use very little power, micro micro amps, and it is possible that it is designed to charge itself when the engine is running off the pulses from the plug wire, micro amps at a time. All that said, I don't think you have a problem, just need to read the instructions and see if they say anything different, I couldn't find them online so hope you have them.

Posted on Sep 27, 2012

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