2004 Kawasaki KX250-M Overview, Reviews, Ratings & Specs
The 2004 Kawasaki KX250-M is a legendary two-stroke motocross motorcycle, a staple in the KX line known for its aggressive power and agile handling. Produced for many years with minor updates, it solidified its place as a top contender in the 250cc class. Its popularity stems from its raw, exhilarating performance and a reputation for being a championship-winning machine. While no specific trims are heavily distinguished beyond standard models, its appeal is universally to riders seeking pure motocross dominance. New pricing in its era was competitive within the high-performance dirt bike segment.
The Good
The 2004 KX250-M excels in raw, explosive power and razor-sharp handling, offering an adrenaline rush for enthusiasts. Its relatively simple two-stroke design contributes to straightforward maintenance for practical owners. The aggressive, race-bred design appeals to the emotional desire for a top-tier motocross machine. Its value lies in its potent performance and enduring reputation.
The Bad
Common weaknesses for the 2004 KX250-M include its peaky power delivery which can be challenging for novice riders. Clutch wear can be a concern with aggressive use. Suspension tuning might require aftermarket adjustments for optimal performance across varied terrains. Overheating can occur during prolonged, strenuous riding in hot conditions if not properly maintained.
2004 Kawasaki KX250-M: Quick Overview
- Engine Options: The 2004 Kawasaki KX250-M features a single engine option: a 249cc liquid-cooled, two-stroke, single-cylinder engine. This powerplant is renowned for its potent and aggressive power delivery, characteristic of high-performance motocross bikes of its era.
- Horsepower: While official manufacturer figures for the 2004 model year are often not explicitly stated in consumer documentation, contemporary performance reviews and dyno tests typically placed the horsepower output in the range of approximately 45-50 horsepower at the crank. This figure highlights its competitive edge in the 250cc motocross segment.
- Fuel Economy: Fuel economy is not a primary design consideration for dedicated motocross bikes like the KX250-M. Riders can expect fuel consumption to be high due to the high-revving nature of the two-stroke engine and the demands of off-road riding. Estimated fuel consumption would likely be in the range of 15-25 miles per gallon, heavily dependent on riding style and conditions.
- 0-60 Times: 0-60 mph acceleration times are not officially published for motocross bikes as they are not designed for road use or measured in this manner. However, due to its light weight and powerful engine, the KX250-M would be capable of extremely rapid acceleration off the line, likely achieving 0-60 mph in well under 5 seconds.
- Towing Capacity: The 2004 Kawasaki KX250-M does not have a towing capacity as it is a purpose-built off-road motorcycle and is not equipped with any towing apparatus or designed for towing.
- Trim-Level Features: The 2004 Kawasaki KX250-M was generally offered as a single, high-performance trim level designed for competitive motocross. Key features that defined its trim included:
- Chassis: Lightweight aluminum perimeter frame for rigidity and agility.
- Suspension: High-performance, fully adjustable front inverted forks (often inverted Kayaba or Showa) and a rear monoshock suspension system (Kawasaki Uni-Trak) designed for absorbing large impacts and providing precise control. Travel lengths were generous for off-road use.
- Brakes: Powerful disc brakes front and rear for strong stopping power.
- Wheels and Tires: Spoked wheels (typically 21-inch front, 19-inch rear) fitted with knobby tires for optimal off-road traction.
- Exhaust: Two-stroke expansion chamber exhaust system tuned for maximum power output.
- Ergonomics: Motocross-specific handlebars, seat, and footpegs designed for aggressive riding stances.
- Cooling: Liquid-cooled engine for consistent operating temperatures under demanding conditions.
- Clutch: Hydraulically activated clutch for smooth engagement and control.
2004 Kawasaki KX250-M Specifications
Vehicle Information
| Year | 2004 |
| Make | Kawasaki |
| Model | KX250-M |
| Trim | - |
| Style | - |
| Type | Motorcycle |
| Category | Motorcycle |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | AKASHI |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 250-CC |
| Engine Size | 250L |
| Engine Cylinders | 1 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | - |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2004 Kawasaki KX250-M Have?
The 2004 Kawasaki KX250-M, like many high-performance two-stroke motocross bikes of its era, is generally considered reliable when properly maintained, but it does have some known areas that owners should be aware of. One of the most frequently reported issues, common to many aggressive two-strokes, is clutch wear. Due to the inherent nature of two-stroke engines and the demands of motocross, the clutch plates can wear out relatively quickly, especially with aggressive riding styles or if the bike is used for prolonged periods without allowing the clutch to cool. Regular inspection and replacement of clutch components are advisable.
Another point of attention is the engine's top-end components. The piston rings and piston itself are subject to wear due to high operating temperatures and stresses. Owners who ride their KX250-M frequently and aggressively should consider periodic top-end rebuilds (piston and ring replacement) as part of their routine maintenance to ensure optimal performance and prevent potential catastrophic engine failure. The cylinder itself can also wear over time, and honing or re-plating may become necessary after many hours of use.
While not a widespread failure, some owners have reported issues with the power valve system. The power valve is crucial for optimizing the engine's powerband, but it can get gummed up with carbon deposits over time, leading to reduced performance or sticking. Regular cleaning and lubrication of the power valve mechanism are recommended. Suspension components, while high-quality for their time, can also require servicing. Seals can leak, and the internal damping components can wear, necessitating rebuilds or revalving to maintain optimal handling and control.
Regarding recalls, specific recalls for the 2004 Kawasaki KX250-M are not widely documented in public databases for significant safety defects. However, it is always prudent for owners of older off-road vehicles to check with Kawasaki or authorized dealers regarding any potential service bulletins or recalls that may have been issued. Long-term reliability is heavily dependent on the owner's commitment to maintenance. A meticulously maintained KX250-M can last for many years and hundreds of hours of riding, but neglect will quickly lead to premature component wear and potential breakdowns. For a bike of this age, inspecting for previous maintenance records and signs of abuse is crucial when purchasing used.
How long will the 2004 Kawasaki KX250-M last?
Estimating average mileage for a 2004 Kawasaki KX250-M is challenging as these bikes are typically measured in service hours rather than miles, and usage varies dramatically based on riding frequency and type (motocross tracks, trail riding, etc.). However, with diligent maintenance, including regular oil changes, air filter cleaning, and periodic top-end rebuilds (every 30-50 hours of hard use), the engine can be kept in excellent condition for hundreds of hours. Bottom-end components and bearings generally have a longer lifespan, potentially lasting 100+ hours between rebuilds. The bike's long-term durability hinges entirely on the owner's commitment to its specific two-stroke maintenance needs. Weaknesses over time primarily manifest as increased wear on the clutch, piston rings, and potentially the cylinder, along with the need for suspension servicing. Neglect will significantly shorten the lifespan of these components.
What Technology & Safety Features are Included?
The 2004 Kawasaki KX250-M is a purebred motocross machine, and as such, its design prioritizes performance and rider control over technology, entertainment, or advanced safety features typically found in street-legal vehicles. Consequently, there are no built-in entertainment systems, infotainment screens, or advanced driver-assistance features such as ABS, traction control, or adaptive cruise control. The focus is on the mechanical interface between rider and machine.
Safety features on the KX250-M are limited to the inherent design elements that contribute to rider control and survivability in off-road conditions. These include powerful hydraulic disc brakes at both the front and rear, providing ample stopping power crucial for quick maneuvers and controlled descents. The robust suspension system, featuring adjustable inverted front forks and a rear monoshock, is designed to absorb impacts, maintain tire contact with the terrain, and enhance stability, thereby contributing to rider confidence and control. The lightweight and responsive chassis, coupled with aggressive knobby tires, offers excellent traction and maneuverability, essential for navigating challenging off-road environments.
Optional features available for the 2004 KX250-M would typically be aftermarket accessories rather than factory-installed packages. These could include different exhaust systems for power tuning, upgraded suspension components for specific riding styles or rider weights, different handlebar setups for ergonomics, aftermarket skid plates for frame protection, or enhanced clutch/brake levers. These options allow riders to further customize the bike to their preferences and the demands of their riding discipline.
Crash-test ratings are not applicable to dedicated off-road motorcycles like the 2004 Kawasaki KX250-M. These vehicles are not subjected to the standardized crash testing protocols used for passenger cars and trucks, as they operate in off-road environments where such testing is irrelevant to their intended use and design.
What Colors Options are Available?
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2004 Kawasaki KX250-M Prices and Market Value
When new, the 2004 Kawasaki KX250-M would have been priced competitively within the high-performance 250cc motocross segment, likely in the range of $6,000 to $7,000 USD, depending on dealer markup and any optional accessories. As a used vehicle, prices vary significantly based on condition, hours of use, modifications, and maintenance history. Expect to see prices ranging from $1,000 for a project bike needing considerable work, up to $3,500-$5,000+ for a well-maintained, low-hour, or highly modified example. Depreciation for dirt bikes is generally steeper and faster than for street bikes, especially for models that are several years old. Resale value is heavily influenced by how well the bike has been maintained, the presence of desirable aftermarket upgrades, and whether it shows signs of abuse or neglect. A clean, stock, and well-documented KX250-M will always command a higher price.
2004 Kawasaki KX250-M Cost of Ownership
Owning a 2004 Kawasaki KX250-M can be costly, especially if not budget-conscious. Insurance is typically minimal as it's an off-road vehicle not requiring standard motorcycle insurance unless specifically requested. Fuel costs are high due to its two-stroke nature, consuming premium fuel and pre-mix oil. Maintenance is an ongoing expense; expect regular oil changes, air filter cleaning, and periodic top-end rebuilds (pistons, rings) which add up. Repairs can be moderate, with common issues like clutch wear or suspension seal leaks being relatively affordable if tackled proactively. Overall, it is not an economical vehicle to own; it demands significant investment in upkeep to maintain its performance, rewarding riders with thrilling power rather than low operating costs.
2004 Kawasaki KX250-M Fuel Efficiency
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Gasoline
Fuel Capacity
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2004 Kawasaki KX250-M Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
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Expired
Rust
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0 months / No data
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2004 Kawasaki KX250-M Insurance
Insurance for a 2004 Kawasaki KX250-M is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2004 Kawasaki KX250-M Compare to Other Motorcycle?
The 2004 Kawasaki KX250-M competed fiercely in the highly contested 250cc two-stroke motocross class. Its primary rivals included the Yamaha YZ250, Honda CR250R, and KTM 250 SX. In terms of raw performance, the KX250-M was renowned for its potent, aggressive power delivery and agile chassis, often considered one of the strongest in its class. The Yamaha YZ250 was a close competitor, known for its broad powerband and excellent suspension. Honda's CR250R was also a formidable bike, often praised for its handling and a slightly more user-friendly power delivery than the KX. KTM's 250 SX offered a more European-inspired performance, often with a stiffer suspension setup.
Feature-wise, these bikes were largely similar in their purpose-built motocross design: aluminum frames, high-performance suspension (inverted forks, monoshock rear), disc brakes, and minimal technological aids. The KX250-M stood out for its aggressive engine character and sharp handling, appealing to riders who craved explosive power. Reliability, when properly maintained, was generally good across all these Japanese brands, though the two-stroke nature of all these bikes necessitates regular top-end maintenance. KTM often had a reputation for slightly more robust components in certain areas but could also be pricier.
Regarding price, the used market for these bikes from 2004 shows similar depreciation trends, with condition being the paramount factor. A well-kept KX250-M would be priced comparably to a YZ250 or CR250R of the same vintage.
Better or similar alternatives depend on rider preference. For riders seeking an even broader powerband and a more forgiving ride, the Yamaha YZ250 from this era is an excellent alternative. If a more refined, potentially slightly less aggressive power delivery is desired, the Honda CR250R is a strong contender. For those looking for a different feel or potentially newer technology (as KTM progressed faster with some advancements), a KTM 250 SX might be considered, though often at a higher used price point. For the pure, exhilarating two-stroke experience that defined this era, the 2004 KX250-M remains a top-tier choice, but the YZ250 and CR250R are equally valid and excellent alternatives.
Final Verdict: Is the 2004 Kawasaki KX250-M a Good Motorcycle?
The 2004 Kawasaki KX250-M is ideal for experienced motocross riders and aggressive off-road enthusiasts who appreciate the raw power and visceral thrill of a high-performance two-stroke engine. It is not suited for beginners or trail riders seeking a docile experience. Whether it's worth buying depends heavily on its condition and price. As a used purchase, it can be an excellent value for those seeking potent performance on a budget compared to newer models, but only if thoroughly inspected for wear and tear. It's crucial to buy one that has been well-maintained, ideally with documented service history. For riders who are comfortable with the maintenance demands of a two-stroke and desire a competitive motocross machine from a golden era of the sport, the 2004 KX250-M is a highly rewarding option.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.