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Mikuni HS40 Smoothbore Carburetor
These state-of-the-art carburetors are available for custom
application on most models.The HS40 SmoothBore carburetor is easy
to tune, and will greatly improve starting, rideability, power and
torque for any riding situation from street and touring, to custom
and performance. Features include a compact, lightweight design
with a high flowing 40 mm SmoothBore venturi and an adjustable
accelerator pump for excellent throttle response. This provides
improved fuel economy and a major increase in both power and
torque from idle to full throttle on both stock and modified engines.
The SmoothBore carburetor comes complete with choke cable.
Throttle cables, manifold, manifold adapter, clamps and air cleaner
must be ordered separately. On models with "Through-The-Head
Breathing" system, breather kit 232224 must be used.
Note: On late models with CV-type carburetor (Sportster 1988-up
& Big Twin 1990-up) carburetor adapter ( 232196) must be used!
On 1996 to present models late style cables must be used, or the
handlebar throttle assembly must be changed to the pre-1995 model.
587000 40 mm Mikuni SmoothBore carburetor for custom building, choke cable assembly is included.
Carburetor accessories
232224 breather kit
232196 Carburetor to manifold adapter for late models with OEM CV-carburetor
232199 Chromed air cleaner cover
232213 Air cleaner element
234869 Rubber carburetor-to-manifold flange
236047 Manifold for Evolution models
236049 Manifold for Twin Cam models
Pull cables (throttle)
232211 Black vinyl, stock length thru 1995
232208 Black vinyl, -4" thru 1995
232206 Black vinyl, +6” thru 1995
722890 Clear coated braided steel, stock length thru 1995
233972 Braided steel, +6” thru 1995
232037 Black vinyl, stock length 1996 to present
232038 Black vinyl, +6” 1996 to present
Push cables (idle)
232212 Black vinyl, stock length thru 1995
232207 Black vinyl, -4” thru 1995
232205 Black vinyl, +6” thru 1995
722892 Clear coated braided steel, stock length thru 1995
233974 Braided steel, +6” thru 1995
232004 Black vinyl, stock length 1996 to present
232005 Black vinyl, +6” 1996 to present
application on most models.The HS40 SmoothBore carburetor is easy
to tune, and will greatly improve starting, rideability, power and
torque for any riding situation from street and touring, to custom
and performance. Features include a compact, lightweight design
with a high flowing 40 mm SmoothBore venturi and an adjustable
accelerator pump for excellent throttle response. This provides
improved fuel economy and a major increase in both power and
torque from idle to full throttle on both stock and modified engines.
The SmoothBore carburetor comes complete with choke cable.
Throttle cables, manifold, manifold adapter, clamps and air cleaner
must be ordered separately. On models with "Through-The-Head
Breathing" system, breather kit 232224 must be used.
Note: On late models with CV-type carburetor (Sportster 1988-up
& Big Twin 1990-up) carburetor adapter ( 232196) must be used!
On 1996 to present models late style cables must be used, or the
handlebar throttle assembly must be changed to the pre-1995 model.
587000 40 mm Mikuni SmoothBore carburetor for custom building, choke cable assembly is included.
Carburetor accessories
232224 breather kit
232196 Carburetor to manifold adapter for late models with OEM CV-carburetor
232199 Chromed air cleaner cover
232213 Air cleaner element
234869 Rubber carburetor-to-manifold flange
236047 Manifold for Evolution models
236049 Manifold for Twin Cam models
Pull cables (throttle)
232211 Black vinyl, stock length thru 1995
232208 Black vinyl, -4" thru 1995
232206 Black vinyl, +6” thru 1995
722890 Clear coated braided steel, stock length thru 1995
233972 Braided steel, +6” thru 1995
232037 Black vinyl, stock length 1996 to present
232038 Black vinyl, +6” 1996 to present
Push cables (idle)
232212 Black vinyl, stock length thru 1995
232207 Black vinyl, -4” thru 1995
232205 Black vinyl, +6” thru 1995
722892 Clear coated braided steel, stock length thru 1995
233974 Braided steel, +6” thru 1995
232004 Black vinyl, stock length 1996 to present
232005 Black vinyl, +6” 1996 to present
