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New CV Performance Slide..drill or no drill

Discussion in 'CV Performance' started by ChrisR, Aug 20, 2018.

  1. ChrisR

    ChrisR New Member

    Aug 20, 2018
    Likes Received:
    I have an 883 that I rebuilt with a CVP tuner kit and it runs like a champ. I have some pinging at WOT so I am moving up to a 180 main. Otherwise the only other issue is every once in a while if I blip the throttle to take of from a stop it pops through the carb and dies. My only thought was it may be running lean so move up to a 45 pilot, but then I thought about the slide as when I installed the tuner kit the slide was drilled out to more than 1/8". I don't have any real issues other than a bit of a touchy throttle but I bought a new slide through CV performance and I am wondering if I should drill out the new slide to 7/64. I thought maybe the new slide has a bigger opening so it didn't need to be drilled as the tuner kit says you don't need to drill out bigger bikes or new slides.
  2. kenfuzed

    kenfuzed Administrator Staff Member

    Jan 1, 2005
    Likes Received:
    Las Vegas NV
    Hi Chris, no need to drill our new slide. The drilling recommendation (no larger than 7/64") is primarily for older slides that were known to have burs left by the manufacturer. The other issues could be anything from a sticking slide, vacuum leaks, or clogged passages between the mixture screw and the pilot jet.

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