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Digital Multimeter

apcaputo

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I have a 1991 Yamaha 225 TXRP.

I have a 1991 Yamaha 225 TXRP. I recently installed a new gas tank in my Mako 22. How do wire a standard sending unit to the Digital Multmeter so it reads accurately. Currently with a full tank it only reads 2/3 full.
 
Thanks for the response. I can

Thanks for the response. I can only find very little information abouth the Yamaha digital multimeter. The engine owners manual only mention how it works and that it is wired differently when using a standard sending unit (as if that helps). No info at all in the Yamaha or 3rd party service manual. I spoke with a Yamaha dealer and they advised that I go and use a Tempo marine fuel guage since the Yamaha digital meter is part of the fuel management system and without the exact wiring harness and I assume sending unit I will never get it to read accurately.
 
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