This manual is the instruction for O.S. Type 7D-7DV automatic carburettor, introducing the adjustment method and use method of the carburettor
This manual provides instructions for the O.S. Type 7D-7DV automatic carburettor. It explains how to adjust the needle valve, mixture control screw, and throttle rotor set screw to ensure steady power and smooth response. The document also details the procedure for removing the carburettor insert for specific engine applications.
| Idle Speed Range | 2,000 and 2,500 r.p.m. |
|---|
Turn the Throttle Rotor Set Screw counter-clockwise to reduce the throttle opening if the engine runs too fast.
Setting the Needle Valve too lean will cause the engine to overheat and slow down.