The throttle line of my Wuyang motorcycle has just been changed, but the handle won't return. I don't know what happened.

When the throttle handle does not return, there are generally the following situations:

1. There is something wrong with the installation of the throttle knob, such as uneven torque when installing screws, which leads to the throttle knob.

It's stuck. It is recommended to loosen the screws and reinstall them.

2. The carburetor throttle is stuck or the resistance is too large. It is recommended to remove the throttle valve for inspection.

3. When installing the throttle line, the line direction is improperly selected, resulting in the throttle line being affected by the rotation of the handlebar. It is recommended to reinstall and keep the throttle line with 5-8 mm free clearance.