40mm Flat Slide Carburetor Carb For Honda CR500 CR500R 1985-2001 + Jet Kit For Sale

High-performance 40mm flat slide carburetor designed for select large-displacement 2-stroke motorcycles and ATVs.

This is a great option for riders looking for increased airflow and performance on 250cc–500cc 2-stroke applications.

Each carburetor is completely disassembled, inspected, reassembled, and personally set up before shipping. A baseline jetting configuration is installed, and additional tuning jets are included for fine-tuning to your specific machine.

This 40mm carburetor can be used on a variety of performance 2-stroke applications, including:

Honda replacement / upgrade for CR500R well suited to modified engines requiring increased airflow

Honda upgrade for compatible intake setups

Suzuki RM250

• Late 1980s–2000s models

• Suitable for custom and performance applications when the dimensions match the existing intake system

Suzuki LT250R upgrade for stock and modified 2-stroke engines when used with a compatible intake setup

Suzuki LT500R candidate for a larger 40mm performance carburetor, especially on modified engines

Kawasaki KX250

• Select model years using a compatible intake and airbox as a performance upgrade rather than an exact OEM replacement

Kawasaki for performance and modified-engine applications when the listed dimensions are compatible

Kawasaki Tecate 3 / application when used with a compatible intake system

Kawasaki Tecate 4 / application when dimensions are compatible

• Carburetor Bore: 40mm

• Engine / Manifold Side OD: Approximately 46mm

• Airbox Side OD: Approximately 63mm

• Overall Length: Approximately 91mm

• Carburetor Type: Flat Slide

• Choke: Manual

• Application: 2-Stroke

• Fuel: Gasoline / Premix

The carburetor comes with a baseline jetting configuration installed to provide a solid starting point.

Because this carburetor fits a wide range of engine sizes and performance combinations, there is no single jetting configuration that is ideal for every machine.

Send me your year, make, model, engine modifications, exhaust, intake/reed setup, and approximate elevation when ordering, and I can install a more application-specific starting jetting setup before shipment.

Additional main and pilot jets are included for final tuning.

Final jetting can vary depending on:

• Engine displacement

• Porting or big-bore modifications

• Exhaust system

• Reed valve and intake setup

• Air filter / airbox configuration

• Fuel and premix and riding conditions

Every carburetor is:

• Completely disassembled

• Internally inspected

• Checked for proper jetted

• Set up before shipment

You receive a carburetor that has been individually inspected and prepared rather than simply shipped straight from the box.

This is a performance aftermarket carburetor, and it should not be assumed to be a direct OEM replacement for every vehicle or year listed.

Please compare the dimensions of your existing carburetor and intake system before ordering.

Depending on the application, modifications such as heating or adapting the airbox boot, changing the intake manifold, or adjusting the throttle cable may be required.

Modified engines may also require substantially different jetting from the supplied baseline.

This is a generic aftermarket performance carburetor.

It is not an OEM Honda, Suzuki, or Kawasaki product and is not manufactured, sponsored, endorsed, or affiliated with any vehicle or original carburetor manufacturer.

Manufacturer names and vehicle model designations are used solely to identify potential vehicle applications and fitment.

Please verify the dimensions and suitability for your particular machine before purchasing.