FUEL SECTION RED PART NUMBERS INDICATE NEW PARTS 8-87 1 2 3 4 5 6 7 8 9 10 11 CONTENTS ELECTRICAL FRAME FRONT END CONTROL WHEEL ENGINE DRIVE TRAIN FUEL EXHAUST GENERAL REFERENCE Keihin Carburetor Related REBUILD KIT FOR EARLY KEIHIN CARBURETOR Part 82337 Part 82300 Designed for Keihin Carburetors with butterfly type choke. ACCELERATOR PUMP DIAPHRAGM KIT Fits Big Twin 1976/1989 & Sportster Late 1976/1987 (RPLS. HD 27006-76) Description Part # 3/8” Thick Spacer and Gasket Set (2) 82404 (Rpls. HD 29250-78A & 27077-78) Manifold Gasket Only High Density Latex 82406F (Rpls. HD 27077-78) INSULATING SPACER & GASKET SET FOR BIG TWIN Part 82367 FUEL ATOMIZER MASTER KIT FOR KEIHIN CV CARBURETOR Fits Big Twin 1990/1999, Twin Cam 1999/2006, & Sportster 1988/2006 Fits Big Twin 1990/1999, Twin Cam 1999/2006, & Sportster 1988/2006 Part 82363 • Use this spacer to reduce heat that transfers to the carburetor. • Used from the factory on Big Twins 1976/1989 equipped with Keihin carburetor (except CV). • Can also be used with many 2-bolt intakes. • Set includes spacer and two gaskets. • Allows for quick idle mixture adjustment with no tools. • Precise adjustment reduces emissions and helps to reduce off idle spit. • Knurled edge for easy grip. • Precision tip shape for maximum efficiency. • Requires removal of the factory installed welsh plug for installation. • Totally eliminates the spitting and popping that the 40mm CV carburetor is prone to do. • Improves throttle response dramatically and will increase power by up to 5 horsepower. • Fully adjustable for everything from stock to highly modified engines. • The flow control needles feature 6 different settings for exact mid-range tunability. • Includes 4 main jets with sizes from 165 to 195. • The Power Tube (emulsion tube/main jet holder) has been redesigned to be used with the OEM main jets if larger jets are required. • The secret to the patented Yost Power Tube is its ability to convert the raw fuel entering the throat of the carburetor from a squirting liquid to a fine mist. The atomized mist will ignite easier and produce a more complete burn. • Installation instructions are included. Note: Evolution models require a #45 slow jet and Twin Cam 88 models require a #46 slow jet. These jets can be found on 8-86 . IDLE MIXTURE THUMBSCREW FOR KEIHIN CV CARBURETOR • Fits 1976/Later Keihin carbs (Keihin Butterfly and Keihin CV). • Also fits S&S Super “E” & “G” carbs. • Includes: (2) 27360-76 o-rings (1) 27311-76 Dust Boot (1) 27361-76 Diaphragm (1) 27362-76 Spring
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