Carburettor Body OS29088100 for 61E, 91HZ and 91HZ-R by O.S. Engine  [OS29088100]

Carburettor body specified for 61E and 91HZ engines

This carburettor body is supplied as a replacement for the named O.S. Engine models and functions as the principal housing for the carburettor assembly, noted by the manufacturer's model code above.

Replace the housing when deformation or damage compromises sealing or alignment. The correct body ensures the carburettor maintains its designed airway geometry so tuning adjustments remain predictable and repeatable.

Setup note: after installing a replacement body, recheck idle and mixture settings as the restored geometry can change the baseline tuning compared with a warped housing.

When performing maintenance or rebuilds on the listed engines, installing this replacement body returns correct mounting geometry and supports accurate carburettor setup.