O.S.Engines Manuals

The O.S. Type 2BK carburettor has been designed for CZ Series 'off-road' racing car engines. It has a larger throat and incorporates an automatic mixture control device, allowing the engine to reach its full potential and providing positive throttle response and rapid acceleration.

This document describes the working principle and features of the O.S. 2B-2CB-D-2CK automatic fuel supply system. The system incorporates an automatic mixture control device that ensures a correctly balanced mixture of fuel and air for the engine at all throttle settings. The device reduces the effective size of the fuel jet orifice as the throttle is closed, preventing the engine from running too rich at low speeds. Additionally, the system no longer requires an airbleed, maintaining maximum suction at the fuel jet. The document also provides instructions for adjusting the system and notes on different fuel and climate conditions.

This document provides operational instructions for the O.S. Type 2D carburettor. The carburettor is specifically designed for 21 class racing engines and is optimized for the O.S. MAX-21 SE-M marine engine. It features a large throat area for high peak power output, while also providing positive throttle response and rapid acceleration through an automatic mixture control system. This ensures ease of handling, even for less experienced users.

This document introduces the usage of O.S. 2F, 2FB automatic carburetor, and describes its features and how to use it.

operating instructions for o.s. type 2s & 2sb carburettors

This manual introduces the use of the O.S. TYPE 3H automatic carburetor

This document introduces the operating instructions for the O.S. TYPE 4BK,4D,5B carburetors, including the composition, operating instructions and adjustment methods of the carburetors

This manual introduces the function and operation instructions of O.S. TYPE 7B. 5B.4BK-4D & 4E automatic carburetor.

This manual introduces the OS TYPE 7D carburetor's user manual

This manual is the instruction for O.S. Type 7D-7DV automatic carburettor, introducing the adjustment method and use method of the carburettor

This document is the operating instructions for the O.S. TYPE 7H carburettor, which introduces the features and characteristics of the product.

This manual introduces the safety operation, installation, maintenance and troubleshooting of OS engines. Please read carefully before operation.

This document is an instruction manual for an O.S. engine. It emphasizes the importance of safe operation and provides guidance on the construction, operation, installation, adjustment, and maintenance of the engine. It also reminds users that the engine is not a toy and should be used with caution.

This is an instruction manual for O.S. engines, which provides detailed information on the engine's construction, operation, maintenance and repair.

This manual introduces the safety operation methods of O.S. aircraft engines, mainly including the composition of the engine, safety operation, installation, adjustment, operation and maintenance.