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Old 31-03-2014, 21:17   #1
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Join Date: Mar 2014
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Yanmar Tacho 3YM30

Hi Guys

My tacho on my Yanmar 3YM30 engine has gone crazy. The engine etc is only a couple of years old and has done about 80 hours.

After fitting a new start battery the tacho now reads about 750 rpm high, it doesn't matter what speed it is supposed to be it consistently high.

Has anybody got any idea on what the problem maybe ?


RangerTug is offline   Reply With Quote

3ym30, yanmar

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