Mikuni HSR 45/42 Carburetor Easy Kit - 42mm KIT 1990-1999 EVO — Harley-Davidson (1984-1999)

Mikuni HSR 45/42 carburetor Easy Kit for 1990-1999 EVO Big Twin, designed to bolt onto your stock manifold and cable setup while retaining the stock airbox appearance. Kit includes a special adapter allowing you to run either the stock airbox or upgrade to a Screamin' Eagle performance air filter.

Features

• Uses stock manifold and throttle cables
• Stock airbox compatible with included adapter
• Screamin' Eagle high-flow air filter compatible
• 42mm Mikuni HSR carburetor
• California A.R.B. Legal Kit available for EVO applications

Specifications

• Brand: Mikuni
• Manufacturer Part #: F42-7
• Carburetor Size: 45/42mm
• Length: 8.7 in
• Width: 16.1 in
• Height: 5.8 in
• Weight: 5.43 lbs
• Country of Origin: Japan

Fitment

Fits Harley-Davidson EVO Big Twin engines from 1990 to 1999. Not compatible with pollution-controlled vehicles unless using the California A.R.B. Legal Kit version.

Frequently Asked Questions

Will this work with my stock air cleaner?

Yes — the kit includes an adapter that retains your stock airbox. You can also upgrade to a Screamin' Eagle high-flow air filter for better flow.

Do I need to change my throttle cables?

No — the Easy Kit uses your existing stock manifold and cables, making installation straightforward without custom routing.

Is this legal in California?

A California A.R.B. Legal Kit version is available for EVO Big Twin. Non-legal versions are not approved for pollution-controlled vehicles — check your state and local laws.

Will this fit my pre-1990 or post-1999 EVO?

This kit is specific to 1990-1999 EVO Big Twin applications. Earlier or newer models may require different carburetor kits.

Can I use my Screamin' Eagle air filter with this?

Yes — the kit adapter supports Screamin' Eagle performance air filters as an upgrade option from the stock airbox.