There could be several reasons why your front wheel on the KTM 1290 GT is not spinning after refitting it. Here are some potential issues to consider:
Brake Caliper Misalignment: If the brake caliper is not properly aligned with the brake disc, it could be causing friction and preventing the wheel from spinning freely. Double-check the caliper positioning and make sure it is aligned correctly.
Brake Pad Engagement: If the brake pads are not properly seated or adjusted, they could be rubbing against the brake disc even when the brake lever is released. Ensure that the brake pads are properly installed and adjusted according to the manufacturer's instructions.
Axle Misalignment or Tightening: If the axle is not aligned correctly or tightened to the recommended torque specifications, it could create resistance and restrict the wheel from spinning freely. Check the axle alignment and ensure it is properly tightened.
Bearing Issues: Faulty or worn-out wheel bearings can cause friction and restrict the wheel's movement. Inspect the wheel bearings for any signs of damage or wear and replace them if necessary.
Spoke Tension: If your motorcycle has spoke wheels, uneven spoke tension could lead to the wheel not spinning freely. Check the spoke tension and adjust it if required, following the manufacturer's guidelines.
Other Obstructions: Inspect the wheel, fender, and surrounding components to ensure there are no obstructions or foreign objects interfering with the wheel's rotation.
If you have followed the instructions correctly and are still experiencing issues, it may be best to consult a professional motorcycle mechanic or contact a KTM service center for further assistance. They will have the expertise and specialized tools to diagnose and resolve the problem with your KTM 1290 GT front wheel.