www.zodiac.nl 06-003 in your incoming airflow for a maximum air-fuel mixture. Kit comes with carburetor, jet kit, K&N air filter, and chromed air cleaner cover. Works with stock style throttle cables as used on 1996 to present models. Available for Evolution Big Twin 1984-1999 with or without manifold and Twin Cam 1999-2017 complete with manifold. For custom applications the carburetor is also available separately. Note: Models 1993 to present need ZPN 232234 crankcase breather kit. Models 1984-1989 also need stock Big Twin style throttle and idle cables 1990-1995. Throttle and idle cables for use with Mikuni HSR42, and HSR45 carburetors Early style HSR42 and HSR45 carburetors have the cable wheel on the left side of the carburetor and use cables as in the table below. Late style HSR42 and HSR45 carburetors have the cable wheel on the right side of the carburetor and use 1990 or later OEM style cables as used on Big Twin. Most cables are available in black vinyl or braided steel. Total Kits for Evolution Big Twin 1984-1999, except 1984-1988 FLH and FLT. All 1984-1989 models require the seperate purchase of mounting flanges ZPN 234039 & 234040 and seals ZPN 740343 237963 Kit without manifold 237964 Kit with manifold Total Kit for Twin Cam 1999-2005 720543 Kit with manifold Carburetor for Custom applications 234863 45mm Carburetor only 238929 Manifold seal to install a Mikuni HSR45 on a CV style manifold, James Gaskets, 5-pack Replacement parts 236047 Manifold for Evolution 236049 Manifold for Twin Cam 237959 Rubber carburetor-to-manifold mounting flange for early style manifold with round opening, 45mm Mikuni carburetor 742193 Rubber carburetor-to-manifold mounting flange for late style manifold with oval opening, 45mm Mikuni carburetor 237960 Air filter element 232600 Chrome air cleaner cover 232601 Chrome air cleaner cover with cutouts 237961 Complete 8" long choke cable with knob, fits Mikuni HSR42, HSR45 & HSR48 carburetors, can also be used on Keihin CV carburetors 234861 Rebuild kit, includes needle valve assembly, top cover gasket, spigot body seal, float bowl seal, rubber boot for accelerator rod, and O-rings 741712 Fuel screw washer 741713 Fuel screw O-ring Early style throttle cables (pull) 114557 Black cable, stock length thru 1995 114561 Black cable, +4" thru 1995 114559 Black cable, +6" thru 1995 722894 Braided steel, clear coated, stock length, thru 1995 232264 Black cable, stock length 1996 to present 232006 Black cable, Buell 1997 to present 722893 Braided steel, clear coated, stock length, 1996 to present 760407 Clear Coated, +6" 1996 to present Early style idle cables (push) 114558 Black cable, stock length thru 1995 114562 Black cable, +4" thru 1995 114560 Black cable, +6" thru 1995 722896 Braided steel, clear coated, stock length, thru 1995 232265 Black cable, stock length 1996 to present 232007 Black vinyl, Buell 1997 to present 722895 Braided steel, clear coated, stock length, 1996 to present 760408 Clear coated cable, +6" 1996 to present 1594 MIKUNI HSR42 SMOOTHBORE CARBURETOR Mikuni's Research and Development Department has spent many months to improve the HS carburetor series to meet all the street riders performance needs. First step was a larger body to fill the need for bigger throttle bores in all-out performance applications; step two had to be a smoother and easier throttle operation. This resulted in the design of the HSR42 carburetor. A major feature of the HSR42 is the flat throttle slide assembly with roller bearings. Unlike butterfly throttle valves, which obstruct the carburetor's venturi at all throttle openings, creating airflow turbulence and hindering precise air/ fuel metering, the flat throttle slide allows an unobstructed venturi at full throttle, thus flowing more air and carbureting more precisely at all throttle settings. The roller bearings on throttle slide provide a light throttle action, which offers smoother control and allows the use of a very light throttle-return spring. With its 42mm venturi, the HSR42 flows 20% more air than the HS40, making the HSR42 an ideal carburetor for Evolution Big Twin and Twin Cam engines employing other performance modifications such as big bore kits, cams, pistons and an exhaust system (Mikuni still recommends the smaller HS40 carburetor for stock and mild tuned Evolution Sportsters). Flow bench tests by Jerry Branch show that the HSR42 Mikuni, while still being smaller in venturi size to some other popular carburetors, is able to flow more air to the engine once installed on the manifold and head. The HSR42 Mikuni actually flows more air at full throttle to produce more peak power. At partial throttle openings, the Mikuni's smaller, yet higher velocity flowing venturi, together with its advanced fuel-metering system provides a stronger overall powerband with improved ridability. Other performance features of the HSR42 include a larger capacity float bowl and a higher flowing needle-valve assembly to accommodate extended full throttle operation. Also, more positive action of the high leverage float valve prevents the possibility of the float bowl over filling or the needle-valve flooding. This eliminates the need for overflow and vent tubes on the carburetor body, giving the carburetor a cleaner look. An adjustable accelerator pump provides instant throttle response throughout the RPM range. Kits work with 1990 thru 2017 style Big Twin throttle and idle cables. Other features are instant engine response, improved rider throttle control, more mid range power for faster acceleration and passing with more confidence, good gas mileage and years of dependable service. Installation instructions and hardware are included with each kit. Mikuni developed several kits for special applications as well as "Easy Kits" that use stock manifolds, choke cable, air cleaner and throttle cable. Throttle and idle cables for use with Mikuni HSR42, and HSR45 carburetors Early style HSR42 and HSR45 carburetors have the cable wheel on the left side of the carburetor and use cables as in the table above. Late style HSR42 and HSR45 carburetors have the cable wheel on the right side of the carburetor and use 1990 or later OEM style cables as used on Big Twin models. Most cables are available in black vinyl or braided steel. Total Kit, fits Evolution Big Twin models 1984-1999, except 1984 thru 1988 FLH and FLT. All 1984-1989 models require the seperate purchase of mounting flanges ZPN 234039 & 234040 and seals ZPN 740343 Includes performance intake manifold, rubber mounting flange, HSR42 carburetor, high flow K&N filter, Chrome air cleaner cover, breather kit and hardware. Uses stock style 1990-2017 Big Twin throttle and idle cables. 720448 Total Kit 731452 Total Kit, approved ´ Carburetors INTAKE
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