Tecumseh Carburetor Identification

Some Tecumseh carburetors can be identified by the primer bulb on the side.
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Normally, the Tecumseh carburetor is stamped with a model number and date code. However, it recommended that the engine model number be used to look up replacement parts. If the carburetor number is used, it should be cross-referenced a parts manual.

Dual System Carburetors

The simplest way to identify the dual system carburetor is by the large primer bulb on the side. The dual system carburetor lacks adjustment needles. This carburetor is used on four-cycle rotary lawnmowers with a vertical crankshaft.

Series 1 and 2 Carburetors

There are variety of styles and applications of the Tecumseh Series 1 carburetor. This model is found on vertical and horizontal shaft engines of both two and four stroke types. The Series 1 carburetor is used on two to seven horsepower. The Series 2 carburetor is used on outboard engines. It is similar to the Series 1 except with a fuel pump and idle adjustment screw.

Series 3 and 4 Carburetors

Generally, Series 3 and 4 carburetors are used on four-cycle engines in the eight to 12.5 range.

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