Used parts for the Kawasaki KLX250 dual-sport are available at Sun Coast Cycle Sports. The KLX250S was sold in the US from 2006-2014 (carbureted), then returned for 2018-2020 with fuel injection before being replaced by the KLX300 in 2021. Built around a 249cc liquid-cooled DOHC single-cylinder engine producing approximately 24 horsepower with a six-speed transmission, the KLX250 is a lightweight, beginner-friendly machine equally at home on urban streets and moderate trail riding. At roughly 304 pounds curb weight, it balances trail capability with road manners. All components are inspected, individually photographed, and ship from our Odessa, Florida facility.
KLX250 generation and parts compatibility
| Period | Years | Engine | Key details |
|---|
| Carbureted KLX250S | 2006-2014 | 249cc single, carbureted | DOHC, liquid-cooled, electric start, 6-speed, 34mm Keihin carb, conventional forks with compression adjust |
| Fuel-injected KLX250 | 2018-2020 | 249cc single, EFI | Returned after 4-year hiatus with DFI (34mm throttle body), same basic chassis, updated emissions |
Within each production run, parts interchange freely. Many chassis components (frame, swingarm, wheels, brakes) are shared between the carbureted and EFI versions, though the fuel delivery system, intake tract, ECU, and associated wiring are obviously different. If sourcing a donor bike, verify whether it is carbureted (2006-2014) or fuel injected (2018-2020) before ordering fuel system components.
The KLX250 shares its platform lineage with the KLX300 (2021+), and some chassis components cross over, but the KLX300 uses a larger-displacement 292cc engine with different internals and slightly revised frame dimensions. The KLX250SF supermoto variant (2009-2010) uses the same engine but features 17-inch wheels with street tires and supermoto-tuned suspension. Engine parts interchange directly between the S and SF.
Common KLX250 failure points and replacement parts
Soft suspension: The OEM suspension is tuned for comfort and lighter riders rather than aggressive off-road performance. The forks offer 10 inches of travel with compression damping adjustment, but the spring rate bottoms easily under riders over 170 pounds or on rocky terrain. Stiffer fork springs and an aftermarket rear shock are the most common and impactful upgrades for this platform.
Carburetor issues (2006-2014): The carbureted models are sensitive to fuel quality and storage conditions. Clogged pilot jets and stuck float valves cause rough idle and hard starting after even short periods of sitting. A carburetor rebuild kit is standard maintenance for any carbureted KLX250 returning to service. Running fuel stabilizer before storage prevents most carburetor issues.
Chain and sprocket wear: The KLX250's relatively modest power output means riders often run the engine at sustained high RPM on highways, accelerating chain and sprocket wear. The stock gearing is tall for off-road use, and many riders swap to a smaller front sprocket for better trail performance, which increases chain load. Regular chain adjustment and timely sprocket replacement extend drivetrain life.
Stock tire compromise: The OEM Dunlop dual-sport tires are a compromise that works adequately on pavement but provides limited traction in loose or muddy conditions. Riders who spend significant time off-road typically swap to more aggressive DOT knobbies.
Commonly replaced KLX250 parts
- Fork springs and rear shock absorber
- Carburetor rebuild kits (2006-2014)
- Chain and sprocket sets
- Brake pads and rotors
- Plastics, fenders, and side panels
- Skid plate and hand guards
- Exhaust system and silencer
- Tires (trail or street upgrades)
Frequently asked questions
Q: Will KLX300 parts fit a KLX250?
Some chassis components like controls and minor hardware may interchange since the KLX300 evolved from the KLX250 platform. However, the engine displacement is different (292cc vs 249cc), and frame and subframe dimensions changed for the KLX300. Engine internals, plastics, and major chassis parts are model-specific. Always verify part numbers before ordering cross-platform components.
Q: Is the KLX250SF supermoto the same bike as the KLX250S dual-sport?
They share the same engine and core chassis, but the SF uses 17-inch cast wheels with street tires, shorter suspension travel, lower seat height, and supermoto-tuned damping. Engine parts interchange directly between the S and SF. Wheels, tires, forks, and suspension components are model-specific and do not cross over.
Q: Can the KLX250 handle highway riding?
The KLX250 can maintain highway speeds but is not designed for sustained high-speed cruising. The 249cc single produces enough power to reach and hold 65-70 mph, but the engine is working hard at those speeds, which accelerates wear on the chain, sprockets, and engine internals. The KLX250 excels as an around-town commuter and moderate trail bike rather than a highway tourer.
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