Tillotson hl carb adjustment. Two styles of main and idle adjustment screws are available: "O" ring type and spring loaded packing type. Information contained in the following pages is presented as an aid to understanding construction, The document provides information about the Tillotson HL series diaphragm carburetor, including its construction, operation, and servicing You can adjust the carburetor in just a few minutes. Page 2 INTRODUCTION The gasoline engine industry’s universal acceptance of Tillotson’s original diaphragm carburetor has resulted in the development, by Tillotson engineers, of the “HL” Series carburetor. Designed with a minimum of parts, this lightweight, compact carburetor includes an integral Designed with a minimum of parts, this lightweight, compact carburetor includes an integral fuel pump and filter in one small unit. The carburetor uses a low-speed and high-speed set screw that you can adjust fairly easily with just a screwdriver. Page 3: Adjustment Instructions To adjust your low speed needle - with engine warm and carb set to factory spec turn out the needle (counter clockwise) until the idle The all position mounting feature allows a wide range of possible applications. Both types are designed to perform the dual purpose of sealing the metering . This service manual provides detailed information on the construction, operation, and servicing of Tillotson HL series carburetors, designed for a wide range of applications. INITIAL ADJUSTMENTS: To start a cold engine, first carefully ADJUSTMENT INSTRUCTIONS To properly adjust carburetor for best performance the engine must be thoroughly warm. ADJUSTMENT INSTRUCTIONS To properly adjust carburetor for best performance the engine must be thoroughly warm. gwuzo8cetq7lnitg2s9p7toozttbhhkpxlkkqndcmhnhdxzr