See full version: How to Identify a Tillotson Carburetor Number
Match the carburetor model number to the application chart found on Tillotson's website (see "Resources"). When matched to this listing, the original application of the carburetor, along with the repair kit number, is identified. For example, "HS-158F" is identified as an HS-158F model Tillotson used on an Alpina/Castor model "70" or "P70." The "HU-7A" was used on an Andreas Stihl model "020AVPSEQ" chainsaw.
Write down the model number. Typically, Tillotson carburetor model numbers begin with a two-letter designation, such as "HS" or "HU," followed by a position code, such as "158F" or "7A." The first section is the carburetor model series and the second number is the specific carburetor designation within that series.
Search the body of the carburetor to find the Tillotson model number. Since these are small carburetors, the model number may be separated into two sections and stamped on different locations on the body of the carburetor. Tillotson carburetor models include the HU, HE, HS, HL, HW and series.
Founded in 1914, Tillotson manufactures diaphragm, float and specialty carburetors designed for use on small engines. Throughout its history, Tillotson has made carburetors that are used for a variety of applications, from Indian motorcycles and Tecumseh lawn mowers to chainsaws and weed trimmers. Identification of Tillotson carburetors requires locating the model number stamped on the carburetor body, and referencing it to a Tillotson application chart to determine its original use. The Tillotson website contains charts and downloads to aid in the identification and specifications of Tillotson carburetors. [links]
Research the Tillotson model number at the Tillotson website to find the specifications for each carburetor model.
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Diaphragm: Diaphragm carburetors are used in chainsaws, trimmers, concrete saws, tillers, leaf blowers, sprayers, racing, UAVs and other applications. We produce a full range diaphragm carburetors for engine applications ranging from 15 to 600 c.c. For older models, visit our Vintage page for availability and refurbishment options. more
Float: Most of our float carburetors are for vintage applications, but we do offer current production models for generators, lawn mowers and other four stroke applications with engine sizes between 150 and 440 cc. For enhanced performance on those engines, we also offer our TillotsonTCT total combustion technology. For vintage float carburetors, check availability and refurbishment options on our Vintage page. [links]
TCT: TillotsonTCT is our newest patented fuel system technology for small off road engines (SORE). This new technology allows most Phase 2 SORE engines to meet EPA Phase 3 legislation and most Phase 3 engines to further improve their emissions while at the same time improving torque, startability and acceleration. The TF model is for 140-225 cc engines and the TG model is for 225-500cc engines. The TF model is an ideal replacement carburetor for GX160 – GX200 engines and can help improve overall engine performance. We are in the process of developing 2-stroke and smaller 4 stroke applications, so contact us for more information or check back for updates as they become available. [links]
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