Follow this steps and fix it. GOd bless you
Service control cables:

1. Disconnect the spark plug cable for safety.
2. Remove the controller cover and loosen the locknuts.
3. Remove all slack from the cable, reposition the locknuts as needed, and tighten the locknuts.
4. Test the controller by moving it through the various positions and making sure it responds appropriately. If it doesn't, readjust it.
5. Reconnect the spark plug.