1. John420jones

    John420jones New Member

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    Ok i have the gt90 kit it works good till i get to 30kpm the kind of sputters till i hit 40kph then runs good again .but when i take off the air filter it works great runs perfect from start to stop ...any ideas
     
  2. crassius

    crassius Well-Known Member

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    I might try a less restrictive air filter.
     

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