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  1. #11
    martincom's Avatar
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    The flywheel magnets have nothing to do with the CPS. There are "nubs" cast into the outer diameter of the flywheel housing. When they pass under the CPS, they change the magnetic reluctance, which in turn produces a pulse. The magnets are only for generating the 21/45 vdc supply and the 12 vdc supply.

    I wouldn't think it would be the LR503 if it is firing when you pour gasoline into the throttle body.

    I'm assuming that when you pour gasoline into the throttle bodies, it only runs until that gasoline has been burnt, correct? Your reported fuel pressure is a tad low. Does it maintain the 20 psi, when pouring gas into the throttle body to start it, until it dies?

  2. #12
    Ok I’ll check the pressure when it’s running after pouring fuel in the throttle bodies. And yes it runs until all the fuel poured in is burnt up. I’ll report back with me findings

  3. #13
    Just so I’m clear when I crank the engine am I suppose to see the RPM gauge go up a bit!?! Possibly to signal the EMM that it’s time to start and send fuel?!? Sorry I’m not super knowledgeable just trying to clarify a few things

  4. #14
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Ryan-virage View Post
    Just so Iím clear when I crank the engine am I suppose to see the RPM gauge go up a bit!?! Possibly to signal the EMM that itís time to start and send fuel?!? Sorry Iím not super knowledgeable just trying to clarify a few things
    Before you start cranking the engine, wake up the MFI display by pressing a button. Wait for the MFI display to finish the wake up sequence.

    Then change the display mode so you can see RPM digits at the bottom.

  5. #15
    Moderator HiPeRcO's Avatar
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    If the ski runs with fuel in the throttle bodies, then it's most likely not a CPS issue. The RPM signal is synthesized by the EMM, it's possible that the wire is broken to the display, or the display itself is bad.

  6. #16
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  7. #17
    Hey guys I was gonna start cranking and checking my rpm when I decided to look at my EMM upon inspection I found these wires broken one set is yellow and black and one is coming off of a relay I have no idea where these go any ideas? Any chance this is my problem?

  8. #18
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Ryan-virage View Post
    ... look at my EMM upon inspection I found these wires broken
    one set is yellow and black
    and one is coming off of a relay

    I have no idea where these go ...
    What relay? Is the relay non-factory?

    You can find wiring diagrams for your year and model and lots more info via my signature links.

    ANY broken wire is a problem.

    Are any other wires patched together or otherwise modified?
    Which ones?


  9. #19
    Also just adding that the broken wire coming off the relay is on the 87 spot...

  10. #20
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Ryan-virage View Post
    Also just adding that the broken wire coming off the relay is on the 87 spot...
    That sounds like someone added an automotive relay.
    Possibly into the fuel pump wiring?

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