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  1. #1
    snowrunner's Avatar
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    RXP won't run right after mods - Limp Home Mode?

    Added XS IC and RIVA Thru-Hull over the winter.

    Warmed it up for a mile or so and then let her rip. Then started missing/sputtering. Revs were lower than 5k during warm-up.

    Was able to make it home, where I found a leak from my OPAS removal (pulled the boot in the hull while installing thru hull). Didn't explain my engine problems, as the same thing happened.

    Heard some back-fires (trying to get it to rev) but seemed to perform like it was in 'Limp Home mode', wouldn't go above 5K RPM.

    I'm lost here, but know I didn't drop a valve (plugs looked good). Couldn't tell that well, but seemed like I was using oil, not sure though?

    This was the first ride of the year, no problems prior to winterization and oil change.

    Display didn't indicate any problems. E- Temp max was 82.

    Does the dealer need to read the ECU?

    Thanks,

    Eric


  2. #2
    Have you checked the coils?

  3. #3
    JFizzleJR's Avatar
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    The only two things I can think of as a possibility are a bad coil or map sensor. There are several different things that can go wrong. Hopefully others will chime in with their insight.

  4. #4
    First thing comes to mind is the plugs, maybe fouled from winterization and storage oil... then I would check to see if the SC is good... simple test, remove air hose to the SC and stick you fingers in there, if it freewheels, it`s beat, if it does`nt but moves very little (gear backlash) it`s still intact (ceramic washers that is)...

  5. #5
    snowrunner's Avatar
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    Coils were good on the primary per service manual. Plugs all looked like the same color.

  6. #6
    snowrunner's Avatar
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    Running RIVA HD steel, but will check.

    Quote Originally Posted by Pale Rider View Post
    First thing comes to mind is the plugs, maybe fouled from winterization and storage oil... then I would check to see if the SC is good... simple test, remove air hose to the SC and stick you fingers in there, if it freewheels, it`s beat, if it does`nt but moves very little (gear backlash) it`s still intact (ceramic washers that is)...

  7. #7
    snowrunner's Avatar
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    EXHAUST sounds normal until I run over 5K then goes into this mode.

  8. #8
    is your IC leaking water?

    Quote Originally Posted by snowrunner View Post
    Running RIVA HD steel, but will check.
    oops, I didn`t see that in your sig...

  9. #9
    captain obvious Lurker's Avatar
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    Sounds like bad plugs or gas. Do you get any error codes when you hit set 5 times? If not then you aren't in limp mode. Run through your gas and add fresh then change your plugs.

  10. #10
    Fast & Loud meeper's Avatar
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    one of the coils could be off, happens to me sometimes, they just pop out, i hate it

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