Bmw R71 / R51 / R61 gearbox rebuild ( part 1 )

Rebuilding Bmw r71 gearbox ,the gearbox was supposedly repaired , but it doesnt look like that . This is 4 gear gearbox , it is shifted by foot , but it has small lever for hand shift which is used in certain situation (not while driving) . BMW had implemented four engine variants - R 51, R 61, R 66 and R 71 - in one chassis and thus created four motorcycles in different classes from 500 to 750 cm³. "The similarity of the engines, as well as the use of the same all-wheel-suspension chassis for all four machines, made it necessary to combine them in just one manual, which at the same time gives an interesting overview of the entire BMW program in the large class." The R 71 was the template for the Soviet URAL M72 and the DNEPR M72 derived from it. These two brands were in turn the template for the Chinese Chang Jiang 750. In the advertisement, BMW presented the R 71 as a "high touring and sidecar machine with rear wheel suspension for the heaviest loads". The price of the motorcycle was 1595 Reichsmarks in 1938. Production ended in 1941 after 3458 units , the next civilian 750 cc BMW was the BMW R 75/5 in 1969.