Breather plates on the R51/3 – R69S engines

3 different breather plates have been used on the boxer engines:

BING inserts (Mischkammer Einsatz)

Overview of the different inserts used in Bing carburetors

Crankshaft shims

Overview of the different crankshaft shims used in the boxer engines

Wheel offset

Wheel offset for R51/2 – R68, R50 – R69S models (from “1000 Tricks für Schnelle BMW’s”)  

Motorcycle models

Overview of  BMW motorcycle models produced from 1948 to 1969 (specials not included) Click for larger image: Models & Production Numbers  

Valves types and related components

Overview of the different valve types and related components, used in the BMW 2-cylinder motorcycles 1948 – 1969

Fuel cocks

Overview of fuel cock types for 1 and 2-cylinders