Yamaha alternative ways for reading out sensors?

Discussion in 'Outboards' started by winters, May 10, 2016.

  1. winters
    Joined: Sep 2006
    Posts: 16
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    Location: The Netherlands

    winters Junior Member

    I own a Yamaha 2-stroke from the 90's. This engine can be connected to a Yamaha 'marine meter', which has an alarm for oil and a bunch of other features such as an rpm meter. I'm wondering if it's possible to read these sensors manually and connect it to e.g. an LED or a third party rpm meter. Someone here who knows if this can be done?
  2. ondarvr
    Joined: Dec 2005
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    Location: Monroe WA

    ondarvr Senior Member

    Yes, just get the wiring diagram and you'll find the color code for each sensor.
  3. CDK
    Joined: Aug 2007
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    Location: Adriatic sea

    CDK retired engineer

    Yamaha was the 1th manufacturer to use a proprietary bus system where all sensor outputs are multiplexed on the same wires. If your engine is equipped like that no 3rd party instruments can be connected.
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