Barrett Small Engine

View PDF Manual: Tecumseh Carburetor Identification HOW TO IDENTIFY A Tecumseh Power CARBURETOR Tecumseh Power has a variety of carburetors. To help identify these carburetors here are some simple procedures to follow. DUAL SYSTEM CARBURETORS The easiest way to identify the dual system carburetor is by the presence of a large primer bulb located on the side of the carburetor. The absence of adjustment needles help to identify the carb as well. The dual system carburetor is used on 4-cycle vertical crankshaft rotary mower engines. SERIES 1 CARBURETORS Series 1 carburetors come in a variety of styles. They are used on both 2 and 4-cycle vertical and horizontal shaft engines in the 2 through 7 h.p. range. It is a float style carburetor with a smaller venturi than the Series 3 and 4 carburetors. Some will have an adjustable idle and main and others will have a fixed main with an adjustable idle. There are also some fixed speed applications that will only have a fixed m...

SERVICE BULLETIN 118 INFORMATIONAL SUBJECT: Safety Switches Installed in Starter and/or Ignition Circuit MODELS OR TYPES AFFECTED: All Tecumseh Engines Because of safety regulations for lawn and garden equipment, most manufacturers are incorporating some type of safety switch in their designs to prevent the operator from starting the engine if the unit is in gear and/or the mower blade or other attachment is engaged. Methods and circuitry vary from manufacturer to manufacturer but the following are basic methods most usually found. 1. A switch installed so the transmission or transaxle must be in a neutral position before the engine can be started. This can be wired in the starter circuit or the ignition circuit. 2. In addition to the neutral, an additional switch is added to the cutting or other attachment control lever so the engine cannot be started with the mower blade or other attachment engaged. This switch can be in the same circuits as a neutral position ...

SERVICE BULLETIN 115 INFORMATIONAL SUBJECT: New Walbro Fuel Pump Walbro has discontinued their previous line of fuel pumps. Walbro has developed an improved design to replace all of the previous fuel pumps. The new style of fuel pump will be used in production. PART NUMBER KIT NUMBER 32959 35800 33100 33715 33981 34812 35018 34392A 35468 34385 35813 PREVIOUS STYLE NEW STYLE The Pulse Fuel Pump Assembly Kit Part No. 35800 (Kit Part No. 35813 for Part No. 34385 Fuel Pump) supplies all the parts needed to convert the engine from the previous style fuel pump to the new style pump. An instruction sheet explaining the proper installation will be included in each kit. NOTE: REPAIR KITS STILL AVAILABLE If replacement of old style fuel pump is not necessary, a repair kit Part No. 33010 is still available for repair of all old style fuel pumps.

SERVIC E   BULLETI N   1 13   INFORMATI ONAL   ISSUED :   September19 87   REVISED: June1995   SUBJEC T:   Analysi sof  FieldFailureExhaustValves   Tecumseh has recommended the use of unleaded gasoline for many years to reduce carbon build-up. Since July 1,   1 984 all production engines have used an austenitic steel exhaust valve.   An evaluation of field returned exhaust valves, found that majority of the valves had carbon build-up only. The   valve could have been cleaned and placed back into the engine. The valve seat must also be cleaned and inspected   and recut if necessary.   The quality and durability of the austenitic steel exhaust valves have increased valve life significantly. When   performing valve service be sure to ...