How to Test Crank Position Sensor Yamaha 200hp


How do I check the performance or reliability of a crank position sensor before buying a new part? My boat motor is experiencing acceleration problems, misfires, rough idle and has difficulty starting. Sometimes the engine stalls or backfires.

I was told this could be a symptom of a bad crank position sensor. My neighbor said the crank sensor monitors the rotational speed of the crankshaft and sends the information to the engine management system as a way to control fuel, timing and other parameters—but how do I test it to determine if it’s good?

My motor is a 2008 Yamaha 200 horsepower V6 2-stroke.

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Marko Saric 3 years 2021-09-01T05:48:09+00:00 0 Answers 476 views Beginner 2

Answer ( 1 )


    Checking the crank position sensor

    Use this instruction guide to check crank position sensor output peak voltage and resistance. The factory specifications in this guide are specific to your year and model. 

    Precise specifications may differ depending on year and model so go here to download the complete factory repair manual for any other model, year Yamaha engine.

    How to Check Crank Sensor Yamaha 175 hp 200 hp 2008 2007 2006

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