Throttle Return Spring: Service and Repair

REPLACING THROTTLE SHAFT RETURN SPRINGS





- Remove throttle housing
- Unscrew nut (1).
- Remove retainer (2).
- Take off connector (3).

Important Note:
- Watch out for shims (4) on both sides of the connector.





- Disconnect connecting rod (1).





- Remove lever (1) with plastic sleeve (2) and spring (3).

Caution!
- Strong spring force.

Installation Note:
- Preload spring with about 1/2 turn.





- Unscrew nut (1).
- Pull off lever (2) with shim and spring.

Important: Be careful not to turn the attached throttle switch beyond the permissible gap angle when unscrewing the nut.

Installation Note:
- Use spacer between lever (2) and housing.
- Preload return spring with approx. 1/2 turn.

Basic Throttle Valve Adjustment:





- Adjustments are only necessary after repairing.
- Loosen screw (1).
- Adjust connector (2) with stop (3) until there is slight clearance between housing and throttle valve.