The 2004 Yamaha YZ450F is a pinnacle motocross bike, known for its groundbreaking liquid-cooled, four-stroke engine. Introduced as a major evolution in dirt bike technology, it falls under the dirt bike body style. This model year was part of a generation that saw continuous refinement. While Yamaha typically doesn't have distinct 'trims' for its motocross bikes in the same way cars do, specific year-to-year updates and optional performance parts define its variations. When new, it was a premium off-road machine. Its popularity stemmed from its potent power delivery and advanced aluminum frame, offering riders a competitive edge.
The Good
The 2004 YZ450F boasts exhilarating, class-leading power and a nimble, confidence-inspiring chassis. Its robust build promises lasting performance for enthusiasts, while its iconic blue and white design evokes pure racing passion. For the practical rider, its proven reliability means more time on the track and less in the shop.
The Bad
Owners often cite the bike's aggressive power delivery as a potential challenge for less experienced riders. Clutch wear can be an issue with hard use, and some early models might exhibit carburetor tuning sensitivities. Regular maintenance is crucial to mitigate these potential drawbacks.
2004 Yamaha YZ450F: Quick Overview
- Engine: 449cc, liquid-cooled, four-stroke, single-cylinder
- Engine Bore x Stroke: 95mm x 63.1mm
- Compression Ratio: 12.5:1
- Carburetion: Keihin FCR flat-slide carburetor
- Ignition: CDI
- Transmission: 5-speed constant-mesh
- Clutch: Wet, multi-plate
- Final Drive: Chain
- Frame: Aluminum, double-cradle
- Front Suspension: Fully adjustable 46mm inverted telescopic fork
- Rear Suspension: Fully adjustable monoshock with linkage (Monocross)
- Front Brake: Hydraulic disc
- Rear Brake: Hydraulic disc
- Front Tire: 80/100-21 51M
- Rear Tire: 110/90-19 62M
- Seat Height: Approximately 39.4 inches
- Wheelbase: Approximately 58.1 inches
- Ground Clearance: Approximately 14.2 inches
- Fuel Capacity: Approximately 2.1 gallons
- Dry Weight: Approximately 238 lbs
- Horsepower: Estimated around 50-55 horsepower at the crank (exact figures varied and were not officially published by Yamaha for this model year, but dyno tests and industry estimations placed it in this range).
- 0-60 mph: Not applicable for motocross bikes; performance is measured in lap times and acceleration on dirt tracks.
- Fuel Economy: Not applicable for off-road racing motorcycles; fuel consumption is highly dependent on riding style and track conditions.
- Towing Capacity: Not applicable.
- Trim-Level Features: Yamaha did not offer distinct trim levels for the YZ450F in the traditional automotive sense. Key features included its potent four-stroke engine, advanced aluminum frame, strong suspension components, powerful braking system, and aggressive styling. Optional accessories from Yamaha Power Parts and aftermarket manufacturers allowed for customization to rider preference and racing needs.
2004 Yamaha YZ450F Specifications
Vehicle Information
| Year | 2004 |
| Make | Yamaha |
| Model | YZ450F |
| Trim | - |
| Style | - |
| Type | Motorcycle |
| Category | Motorcycle |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | HAMAMATSU |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 449-CC |
| Engine Size | 449L |
| 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 Yamaha YZ450F Have?
The 2004 Yamaha YZ450F, while generally a robust and highly regarded machine, did have a few points that owners frequently reported or needed to be aware of. One of the most commonly discussed aspects was the aggressive nature of its four-stroke engine. While this is a desirable trait for experienced racers seeking peak performance, it could lead to rapid clutch wear if riders were not judicious with throttle control and clutch engagement, especially in technical sections or when learning. The clutch itself, while strong, is a wear item on any high-performance dirt bike, and the YZ450F was no exception.
Another area sometimes mentioned was the carburetor tuning. Like many performance carburetors of the era, the Keihin FCR could be sensitive to altitude changes and temperature variations, sometimes requiring fine-tuning by the owner to maintain optimal performance. This wasn't necessarily a 'problem' but rather a characteristic of the tuning system that demanded rider attention.
While there were no widespread, major recalls issued for the 2004 YZ450F that indicated a systemic design flaw, like any used performance machine, individual units could develop issues based on their history. Long-term reliability heavily depended on the maintenance habits of previous owners. Diligent oil changes, air filter cleaning, and regular inspection of wear items like sprockets, chain, and brake pads were paramount. Neglect in these areas could lead to accelerated wear on the engine and drivetrain components.
Some owners also reported occasional issues with the kickstart mechanism, though this was not a pervasive problem. Generally, the engine and transmission were considered very durable for their intended purpose. The aluminum frame, while providing excellent rigidity and handling, could show signs of stress or damage from impacts if the bike had been ridden aggressively over challenging terrain without proper care. Overall, the 2004 YZ450F is known for good long-term potential if properly maintained.
Another area sometimes mentioned was the carburetor tuning. Like many performance carburetors of the era, the Keihin FCR could be sensitive to altitude changes and temperature variations, sometimes requiring fine-tuning by the owner to maintain optimal performance. This wasn't necessarily a 'problem' but rather a characteristic of the tuning system that demanded rider attention.
While there were no widespread, major recalls issued for the 2004 YZ450F that indicated a systemic design flaw, like any used performance machine, individual units could develop issues based on their history. Long-term reliability heavily depended on the maintenance habits of previous owners. Diligent oil changes, air filter cleaning, and regular inspection of wear items like sprockets, chain, and brake pads were paramount. Neglect in these areas could lead to accelerated wear on the engine and drivetrain components.
Some owners also reported occasional issues with the kickstart mechanism, though this was not a pervasive problem. Generally, the engine and transmission were considered very durable for their intended purpose. The aluminum frame, while providing excellent rigidity and handling, could show signs of stress or damage from impacts if the bike had been ridden aggressively over challenging terrain without proper care. Overall, the 2004 YZ450F is known for good long-term potential if properly maintained.
How long will the 2004 Yamaha YZ450F last?
Estimating precise mileage for motocross bikes like the 2004 Yamaha YZ450F is challenging, as usage is typically measured in 'hours' rather than miles, and records are not always meticulously kept. However, a well-maintained YZ450F, ridden regularly by an owner who adheres to a strict maintenance schedule (frequent oil changes, air filter cleaning, valve checks), can reliably serve for many years, potentially accumulating hundreds of hours of use.
Long-term durability hinges significantly on how the bike was used and cared for. Bikes used exclusively for racing in harsh conditions may show wear faster than those used for trail riding. Weaknesses that emerge over time often relate to components that are subject to high stress and wear, such as the clutch, piston, and valve train. Regular top-end rebuilds (piston and rings) typically every 50-100 hours, depending on riding intensity, are common for maintaining peak performance and preventing catastrophic engine failure. The frame and suspension, while robust, can also require attention over time, with shock rebuilds and fork service being standard maintenance. Overall, with diligent care, the 2004 YZ450F demonstrates strong long-term durability.
Long-term durability hinges significantly on how the bike was used and cared for. Bikes used exclusively for racing in harsh conditions may show wear faster than those used for trail riding. Weaknesses that emerge over time often relate to components that are subject to high stress and wear, such as the clutch, piston, and valve train. Regular top-end rebuilds (piston and rings) typically every 50-100 hours, depending on riding intensity, are common for maintaining peak performance and preventing catastrophic engine failure. The frame and suspension, while robust, can also require attention over time, with shock rebuilds and fork service being standard maintenance. Overall, with diligent care, the 2004 YZ450F demonstrates strong long-term durability.
What Technology & Safety Features are Included?
The 2004 Yamaha YZ450F, as a dedicated motocross competition machine, is fundamentally stripped down to essentials for performance and rider feedback. Therefore, it does not feature the conventional technology, entertainment, driver-assistance, or safety features found in street-legal vehicles. There is no infotainment system, no navigation, no advanced electronics, and no driver-assistance aids like ABS or traction control. The focus is entirely on delivering a raw, connected riding experience for racing.
The 'technology' present is purely performance-oriented. This includes the liquid-cooled, four-stroke engine designed for maximum power and responsiveness, a sophisticated aluminum frame engineered for optimal rigidity and handling, and high-performance, fully adjustable suspension components (both front forks and rear shock) allowing riders to fine-tune their setup for specific track conditions and riding styles. The braking system is hydraulic disc brakes front and rear, providing strong stopping power crucial for competitive riding.
Optional features and accessories were primarily focused on enhancing performance or durability. These could include aftermarket exhaust systems, different gearing ratios, upgraded clutch components, protective skid plates, handguards, and specialized tires. Yamaha's own Power Parts catalog offered many such items.
Crash-test ratings are not applicable to off-road competition motorcycles like the YZ450F, as they are not designed or tested for road use or the types of impacts evaluated in automotive safety assessments. Rider safety is primarily achieved through the use of appropriate protective gear (helmet, goggles, boots, riding suit) and the rider's skill and judgment.
The 'technology' present is purely performance-oriented. This includes the liquid-cooled, four-stroke engine designed for maximum power and responsiveness, a sophisticated aluminum frame engineered for optimal rigidity and handling, and high-performance, fully adjustable suspension components (both front forks and rear shock) allowing riders to fine-tune their setup for specific track conditions and riding styles. The braking system is hydraulic disc brakes front and rear, providing strong stopping power crucial for competitive riding.
Optional features and accessories were primarily focused on enhancing performance or durability. These could include aftermarket exhaust systems, different gearing ratios, upgraded clutch components, protective skid plates, handguards, and specialized tires. Yamaha's own Power Parts catalog offered many such items.
Crash-test ratings are not applicable to off-road competition motorcycles like the YZ450F, as they are not designed or tested for road use or the types of impacts evaluated in automotive safety assessments. Rider safety is primarily achieved through the use of appropriate protective gear (helmet, goggles, boots, riding suit) and the rider's skill and judgment.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2004 Yamaha YZ450F Prices and Market Value
When the 2004 Yamaha YZ450F was new, its MSRP was typically in the range of $6,500 to $7,000, reflecting its status as a top-tier, high-performance motocross bike. The used market for this model is quite varied. Depending on its condition, hours of use, maintenance history, and any modifications, you can find them ranging from $1,500 to $3,500.
Motorcycles, especially performance-oriented ones like motocross bikes, experience significant depreciation immediately after purchase. However, models like the YZ450F tend to hold their value relatively well compared to other types of vehicles, particularly if they have been well-maintained and are sought after for their performance characteristics. Factors significantly affecting resale value include the overall condition, the number of hours on the engine (often a more relevant metric than mileage), whether the bike has been raced heavily or primarily used for trail riding, and the presence of desirable aftermarket upgrades. A clean, unmodified, and well-cared-for example will command a higher price.
Motorcycles, especially performance-oriented ones like motocross bikes, experience significant depreciation immediately after purchase. However, models like the YZ450F tend to hold their value relatively well compared to other types of vehicles, particularly if they have been well-maintained and are sought after for their performance characteristics. Factors significantly affecting resale value include the overall condition, the number of hours on the engine (often a more relevant metric than mileage), whether the bike has been raced heavily or primarily used for trail riding, and the presence of desirable aftermarket upgrades. A clean, unmodified, and well-cared-for example will command a higher price.
2004 Yamaha YZ450F Cost of Ownership
Owning a 2004 Yamaha YZ450F is generally not considered economical, as it's a high-performance off-road machine. Insurance costs can vary but are typically lower than for street bikes as it's usually covered under a specialized policy or not insured at all if used solely on private property. Fuel consumption is high due to its performance-oriented engine. Maintenance is a significant ongoing cost, requiring frequent oil changes, filter replacements, and regular checks of wear items. Repairs, especially for engine components or suspension after hard use or crashes, can be costly. While the bike itself may be affordable on the used market, the sum of its fuel, maintenance, and potential repair needs makes it a moderately to highly costly vehicle to own and operate consistently.
2004 Yamaha YZ450F Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2004 Yamaha YZ450F Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
2004 Yamaha YZ450F Insurance
Insurance for a 2004 Yamaha YZ450F is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2004 Yamaha YZ450F Compare to Other Motorcycle?
The 2004 Yamaha YZ450F entered a highly competitive motocross landscape, facing stiff competition from other Japanese manufacturers. Its primary rivals in the 450cc four-stroke class were the Honda CRF450R, Kawasaki KX450F (though often 400cc or 450cc in this era), and Suzuki RM-Z450.
Performance: The YZ450F was renowned for its potent, torque-rich engine, often considered one of the strongest in its class. Yamaha's four-stroke technology was leading-edge for the time, offering thrilling acceleration and power. Honda's CRF450R was also a powerhouse, known for its linear power delivery and user-friendliness. Kawasaki and Suzuki offered competitive engines, though Yamaha and Honda often had a slight edge in outright grunt and top-end power.
Features: In terms of features, these bikes were all quite similar, focusing on high-performance suspension (inverted forks, monoshock rear), strong disc brakes, and lightweight aluminum frames. The YZ450F stood out with its aluminum frame and potent engine package. Honda's Pro-Link rear suspension and advanced chassis were also highly praised. There were minimal electronic aids across the board, as the focus was on pure mechanical performance.
Reliability: All these bikes, when properly maintained, were generally reliable for their intended purpose. However, high-performance motocross bikes demand rigorous maintenance. The YZ450F had a solid reputation, as did the CRF450R. Some model years of competitors might have had specific recurring issues, but overall, they were built for demanding use.
Price: When new, prices were comparable across the major manufacturers, typically in the $6,500-$7,000 range. On the used market, the 2004 YZ450F remains a strong contender.
Alternatives: For someone looking for a similar experience, the 2004 Honda CRF450R is an excellent alternative, often praised for its handling and engine characteristics. A slightly older model, like a 2002-2003 YZ450F, would offer very similar performance but might be available at a lower price. If seeking a more refined or potentially more user-friendly experience, looking at newer models of any of these brands would be a step up, but for a comparable vintage performance machine, the 2004 YZ450F and CRF450R are top choices.
Performance: The YZ450F was renowned for its potent, torque-rich engine, often considered one of the strongest in its class. Yamaha's four-stroke technology was leading-edge for the time, offering thrilling acceleration and power. Honda's CRF450R was also a powerhouse, known for its linear power delivery and user-friendliness. Kawasaki and Suzuki offered competitive engines, though Yamaha and Honda often had a slight edge in outright grunt and top-end power.
Features: In terms of features, these bikes were all quite similar, focusing on high-performance suspension (inverted forks, monoshock rear), strong disc brakes, and lightweight aluminum frames. The YZ450F stood out with its aluminum frame and potent engine package. Honda's Pro-Link rear suspension and advanced chassis were also highly praised. There were minimal electronic aids across the board, as the focus was on pure mechanical performance.
Reliability: All these bikes, when properly maintained, were generally reliable for their intended purpose. However, high-performance motocross bikes demand rigorous maintenance. The YZ450F had a solid reputation, as did the CRF450R. Some model years of competitors might have had specific recurring issues, but overall, they were built for demanding use.
Price: When new, prices were comparable across the major manufacturers, typically in the $6,500-$7,000 range. On the used market, the 2004 YZ450F remains a strong contender.
Alternatives: For someone looking for a similar experience, the 2004 Honda CRF450R is an excellent alternative, often praised for its handling and engine characteristics. A slightly older model, like a 2002-2003 YZ450F, would offer very similar performance but might be available at a lower price. If seeking a more refined or potentially more user-friendly experience, looking at newer models of any of these brands would be a step up, but for a comparable vintage performance machine, the 2004 YZ450F and CRF450R are top choices.
Final Verdict: Is the 2004 Yamaha YZ450F a Good Motorcycle?
The 2004 Yamaha YZ450F is ideal for experienced motocross riders or aggressive trail riders who crave raw power and a competitive edge. It's a bike that rewards skilled riders with exhilarating performance. It is definitely worth buying if you're seeking a potent, older-model four-stroke motocross bike and are prepared for the maintenance demands.
Buying it used is the only realistic option now. Focus on bikes with a documented maintenance history or those that appear well-cared for, avoiding those that look heavily thrashed or have obvious signs of neglect. If you're a novice rider, this bike's aggressive power delivery might be overwhelming; consider a smaller displacement bike or a less potent model. For the right rider, the 2004 YZ450F offers tremendous fun and capability at a fraction of the cost of a new machine, provided you prioritize condition and are ready for its upkeep.
Buying it used is the only realistic option now. Focus on bikes with a documented maintenance history or those that appear well-cared for, avoiding those that look heavily thrashed or have obvious signs of neglect. If you're a novice rider, this bike's aggressive power delivery might be overwhelming; consider a smaller displacement bike or a less potent model. For the right rider, the 2004 YZ450F offers tremendous fun and capability at a fraction of the cost of a new machine, provided you prioritize condition and are ready for its upkeep.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.