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  1. J

    High rpms = 4 stroking

    You think the carb is partially clogged? (Nothing has changed on the motor)
  2. J

    High rpms = 4 stroking

    What if the engine starts to do it all of a sudden after years of riding? Changed the plug and leaned it out but mine still doesnt scream like used to. Note the exhaust is cut off and its ported. Did real good in the cooler months.