NHTSA Complaint #11423380 — 2008 BMW R 1200 RT

This is a two-cylinder engine with an independent throttle body for each cylinder. The throttle is actuated by a cable and pulley which rotate the throttle plate on a shaft. The pulley is attached to the shaft with molded plastic. Upon inspection during service, both plastic moldings (both cylinders) were discovered to be cracked and near failure. Failure of this part will cause that cylinder to go to idle power. If the vehicle is in motion, there will be a sudden loss of power, and high vibration until the throttle is closed. Until repair, the motorcycle will be inoperable. This has become a known defect with this series of motorcycles. I repaired mine using an aftermarket aluminum part created to address this problem. Parts cost was $458.