Kawasaki Ninja 250: Carburetor Specs, History & Rebuild Guide

Overview

The Kawasaki Ninja 250 is a 248cc parallel-twin motorcycle produced by Kawasaki (1986–2012).

The Kawasaki Ninja 250R (codenamed EX250 ; previous generations had market-specific names) is a motorcycle in the Ninja sport bike series from the Japanese manufacturer Kawasaki originally introduced in 1986. As the marque's entry-level sport bike, the motorcycle has undergone few changes throughout its quarter-century lifetime, having received only three substantial redesigns. In some markets, the Ninja 250R has been succeeded by the Ninja 300.

Engine & Carburetor

The Kawasaki Ninja 250 uses a 248cc parallel-twin engine. The stock carburetor is a Keihin CVKD32 unit. The CVKD32 is known for reliable fuel metering and is widely supported by aftermarket rebuild kits.

CarbForge offers carburetor rebuild kits compatible with the Kawasaki Ninja 250. These kits include all necessary gaskets, jets, needle valves, and float assemblies to restore the original Keihin CVKD32 carburetor to factory performance without purchasing a complete replacement unit.

Compatibility & Fitment

CarbForge carburetor repair kits are compatible with the Kawasaki Ninja 250 (1986–2012). Coverage spans the main production run from 1986 through 2012. Always verify your model year and carburetor part number before ordering.

Carburetor Maintenance Tips

Regular carburetor maintenance keeps your motorcycle running efficiently:

1. Clean the jets — Remove and clean the main jet, pilot jet, and needle jet every 12,000 km or as needed.
2. Inspect the float — Check the float for fuel leakage; a waterlogged float causes rich running.
3. Replace the needle valve — A worn needle valve and seat causes fuel overflow and flooding.
4. Check the diaphragm (CV carburetors) — A cracked diaphragm causes poor throttle response.
5. Use a rebuild kit — When multiple seals and jets need replacement, a complete rebuild kit is more economical than sourcing parts individually.