A: Here are some possible reasons for your issues.
Kart Moves While Engine Is Idling (Torque Converter):
1. Drive belt installed wrong (30 Series only, flat side of belt should be towards the engine)
2. Wrong drive belt installed (a belt that is too short will cause the machine to "creep" at idle)
3. Malfunctioning driver pulley (on crankshaft)
4. Malfunctioning driven pulley (on jackshaft)
5. Incorrect driver pulley spacing
6. Engine idle set too high
7. Pulleys not aligned (will also destroy belts)
For more help with trouble shooting your torque converter please see this guide below:
Trouble Shooting Guide For Clutches or Torque Converters
Answer provided by: BMI Karts (2/16/2016)
