slow

  1. S

    Performance Carb Jetting

    I bought an HP Performance carburetor for my 2-stroke motorized bicycle to replace my NT carburetor. As of right now, my NT carb blows the performance carb out of the water. I'm guessing a jet issue? It cranks right up but, lacks power, torque and top speed. Anybody have ideas about what jets I...
  2. S

    HP Performance Carburetor Jetting

    I bought an HP Performance carburetor for my 2-stroke motorized bicycle to replace my NT carburetor. As of right now, my NT carb blows the performance carb out of the water. I'm guessing a jet issue? It cranks right up but, lacks power, torque and top speed. Anybody have ideas about what jets I...
  3. Mp2003

    Bike too slow

    About a week ago I bought a 2-stroke 80/66cc bike kit. I installed it and after startup problems at first I managed to get it running smoothly, the only problem is, it is way too slow. It struggles to stay at 20mph with the throttle wide open. I checked the carb and the throttle runs fine, so...
  4. P

    Engine Trouble Won't rev high enough?

    so a few weeks ago I put together my build from some years ago. Many thanks to SBP, specifically Jim for all his help. He personally emailed me with answers to all my dumb questions. Now I think I have some engine problems. My mixture is 40:1. My idle is what I consider perfect. My plug is a...
  5. Alexmeow

    Bike keeps dying

    My bike starts off going about 14 mph and shaking then quickly dies down to about 4mph still shaking during a quick ride around the block or dies completely and I have to pedal to keep the engine running I check it after and the carb is flooding but there was never a problem with the carb...

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