O.S. Engine OS29088100 Carburettor Body for 61E, 91HZ and 91HZ-R nitro RC engine models  [OS29088100]

Replacement carburettor housing for 61E/91HZ series

This carburettor body is a direct-scale replacement component intended for use on the listed O.S. Engine nitro RC engine models. It serves as the main housing for the carburettor assembly and is referenced by the manufacturer's model code provided above.

Use this part when restoring worn or damaged carburettor housings or when rebuilding an engine to factory-fit dimensions. The component's role in tuneability is limited to providing the correct physical mount and airway geometry for the carburettor, ensuring the carburettor assembly can be adjusted and serviced without distortion from a damaged housing.

Installation notes: the body is intended to be fitted in place of the original housing on compatible models, aligning mounting holes and fuel/air passages as the original did. Verify fit before final assembly and confirm that sealing surfaces are clean to avoid air leaks that affect running and tuning.

For maintenance or restoration of the listed nitro RC engines, this replacement carburettor body restores the correct mounting geometry and enables routine tuning and servicing of the carburettor assembly.