| Specification | Data |
|---|---|
| Model Series | Kawasaki KLX 250 – LX250E |
| Production Years | 1993-2007 |
| Engine Oil | SAE 10W-40 API SE-SJ JASO MA (1.1 L) |
| Tires (Front/Rear) | 80/100-21 51P / 110/100-18 64P |
| Tire Pressure | 1.5 bar (22 psi) Front & Rear |
| Battery | YTX7L-BS |
| Spark Plug | NGK CR8E |
The Kawasaki KLX 250 (LX250E) holds a unique place in dual-sport history as one of the first production 250cc trail bikes to successfully implement a high-rigidity perimeter frame, a design philosophy directly inherited from Kawasaki’s KX motocross racing division. This engineering choice provided the LX250E with a level of chassis stability that far surpassed its contemporary competitors using traditional backbone frames.
Technical Engineering Overview
At the heart of the LX250E is a liquid-cooled, four-stroke, DOHC, 4-valve single-cylinder engine. Unlike many air-cooled counterparts of the 90s, the KLX 250 utilized an electrofusion cylinder bore for improved heat dissipation and longevity. This engine was designed for a linear power delivery, making it exceptionally capable in technical off-road sections while maintaining enough top-end for highway transitions.
Maintenance & Service Guidelines
To maintain the E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) standards of MotoSpecsLab, we provide the following critical service parameters for the LX250E:
Lubrication System
The LX250E requires 1.1 Liters of SAE 10W-40 engine oil. It is imperative to use oil meeting JASO MA standards to ensure the wet clutch operates without slipping. Given the high-revving nature of the 249cc engine, oil changes should be performed more frequently if the bike is used primarily off-road.
Ignition and Electrical
The ignition system relies on an NGK CR8E spark plug. Proper gapping and heat range are vital for preventing carbon fouling during low-speed trail riding. The electrical system is powered by a YTX7L-BS battery, which must be kept at a full charge to ensure the reliability of the electric starter, especially in cold climates.
Chassis and Tires
The LX250E runs a classic dirt-oriented setup: a 80/100-21 front and a 110/100-18 rear. For general dual-sport use, a pressure of 1.5 bar (22 psi) is recommended. However, for dedicated off-road use, riders often drop this to 12-15 psi, provided rim locks are installed.
MotoSpecsLab Editorial Review
Rating: 4.5/5
The LX250E is a masterclass in longevity. While it may lack the raw horsepower of modern fuel-injected 250s, its carbureted simplicity and over-engineered cooling system make it a favorite for adventure riders who prioritize reliability in remote locations. The suspension, featuring adjustable compression and rebound, offers a level of sophistication rarely seen in the ‘entry-level’ dual-sport category of its era.
Frequently Asked Questions (FAQ)
What is the recommended tire pressure for the KLX 250?
The factory recommendation is 1.5 bar (22 psi) for both front and rear tires for mixed-surface riding.
How much oil does the LX250E engine hold?
The total oil capacity is 1.1 Liters when changing the filter.