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  1. #1
    Slxrider's Avatar
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    2019 Gp 1800 R stumbles

    Having a recent issue. 19 gp 1800R. Has developed a stumble when trying to get on the throttle. Almost sound like Somethingís holding a 2 step sort of then it rips. Only happens when I idle for a time or donít get into boost. I can get into boost by getting into the throttle slowly. May stumble still depending on how long I idle for. (No wake zones). It has 98 hours. Original clutch. Stage 2 with fizzle intercooler thatís One year old. Boost is holding 14 psi when full throttle. I thought at first it was humidity with cold water and making moisture but itís been consistent this last month. Fresh plugs at 75 hours

  2. #2
    Click avatar for tech links/info K447's Avatar
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    A new set of spark plugs would be an inexpensive first step.

  3. #3
    Slxrider's Avatar
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    I’ll try another set of plugs

  4. #4
    Egeiger81's Avatar
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    Hate to say it but I had hesitation as well and it ended up being a leaky fizzle.

    would just hesitate when getting on it from idle or from very low rpm top end was fine anything over 5k was fine. Pulled it and looked and it was full of water in lower intake tube.

    I have a full post about it from 3-4 days ago.

    could be your issue, fingers crossed for just spark plugs though.

  5. #5
    Slxrider's Avatar
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    I’m going to do a pressure check on it this week fingers crossed that’s not the case. Really don’t want to buy another one being it’s only a year old.

  6. #6
    Egeiger81's Avatar
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    Depending on how old it is they have a warrranty for 1 year I believe then it decreases and gets prorated I think over 2 more. I’d pressure test it for sure ASAP.

  7. #7
    Slxrider's Avatar
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    Will find out today if it’s leaking. It’s only a little over a year old


  8. #8
    BLASTER 1's Avatar
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    Quote Originally Posted by Slxrider View Post
    Will find out today if it’s leaking. It’s only a little over a year old
    It could very well be condensation. When it’s hot and or humid I get a lot of water that accumulates at the bottom of the j pipe. Runs like crap until it clears up

  9. #9
    Site Admin Green Hulk's Avatar
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    It's normal for our intercoolers to condensate quite a bit.

  10. #10
    Slxrider's Avatar
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    I know it’s normal just wasn’t doing it like this last year. Pressure checked the intercooler held 40 psi no problem. Plugs all look good. Guess it is condensation or bad fuel

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