90 Specifications
Carburetor BIVIW 630 CS
Carburetortype l solex4A l
duplextwin-barrel
Settings Stage l Stage 2
Air venturi 20 54
lntake pipediameter ` 32 54
Main jet 97.5
Air correction jet 2.1 H7 3.7 H7
Electromagnetic idle shutoff valve No. PE 20 273
ldle jet 42.5
Float needle valve 3.0
Float weight g 6.8±0.35
Quantity injected cm9/stroke o.6±O.1
Jet needle 8 3
Fuel consumption at constant
speeds in 4th gear-BMW 630 CS
f` Fuel consumption by standard test method
Fuel consumption at constant
speeds in 4th gear-BMW 633 Csl
1