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I am currently having Nichols Instruments in Greensboro, NC repair the tach/hourmeter from my YM165D. They have requested the cable and hourmeter ratios. It is a Nippon Seiki mechanical instrument. Appreciate any assistance you can provide.
mctank wrote:I also need hourmeter ratio.
Back to my first statement, good luck with that, I'll be surprised if you can come up with it. I am supposing that would be how many turns per second? at 2000rpm or something along those lines.
My hour meter says that 6 minutes at 2400 RPM is equal to 1/10 of an hour. That's 40 revolutions per second for the hours meter to record in real time, or 14,400 revolutions for every 1/10 increment.
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