The 2006 Yamaha YFM450AS 4WD, part of Yamaha's popular Grizzly lineup, is a robust all-terrain vehicle (ATV) designed for rugged off-road adventures. As a 4WD model, it offers enhanced traction for challenging terrain. While specific trims for this exact model year are consolidated into the 450AS designation, it consistently offers a powerful engine and durable chassis. Its popularity stems from Yamaha's reputation for reliability and the Grizzly's proven off-road capability, often found in the $4,000-$6,000 range on the used market.
The Good
The 2006 Yamaha YFM450AS 4WD excels in its reliable, no-nonsense performance, offering true 4WD capability for confident trail riding. Its robust build appeals to practical buyers, while its legendary Yamaha durability provides emotional peace of mind.
The Bad
Owners should watch out for potential carburetor issues on older models, particularly if maintenance has been neglected. Excessive wear on suspension components and drive shafts can also occur with heavy use. Some users report the plastic body panels can be brittle.
2006 Yamaha YFM450AS 4WD: Quick Overview
- Engine Options: The 2006 Yamaha YFM450AS 4WD is equipped with a single engine option.
- Engine Type: 421cc, liquid-cooled, SOHC, 4-stroke, 4-valve
- Horsepower: While Yamaha doesn't officially publish horsepower figures for this model, it's estimated to be in the range of 25-30 horsepower.
- Fuel Economy: Fuel economy varies significantly based on riding conditions, terrain, and throttle input. On average, expect somewhere in the range of 15-25 miles per gallon.
- 0-60 Times: 0-60 mph times are not typically a measured metric for ATVs due to their off-road nature and varying traction. Acceleration is generally brisk for its class, providing ample power for trail riding and moderate hauling.
- Towing Capacity: The YFM450AS 4WD features a robust steel frame and is rated for a towing capacity of up to 1,100 lbs (500 kg). This makes it capable of hauling trailers, equipment, or game.
- Trim-Level Features: The 2006 Yamaha YFM450AS 4WD designation generally encompasses the core features of the Grizzly 450. Key features include:
- 4WD System: On-command push-button 4WD with differential lock for superior traction.
- Engine: Reliable 421cc engine providing ample torque.
- Transmission: Yamaha's durable Ultramatic automatic transmission with engine braking.
- Suspension: Independent front and rear suspension with adjustable shocks for a comfortable ride over rough terrain.
- Brakes: Sealed hydraulic disc brakes front and rear.
- Instrumentation: Digital LCD meter providing speed, odometer, trip meter, clock, and 4WD indicator.
- Storage: Front and rear racks with substantial weight-carrying capacity (front: 88 lbs, rear: 176 lbs).
- Lighting: Dual 30W halogen headlights and a 21/5W brake/taillight.
- Chassis: Strong steel frame designed for durability.
- Wheels: Durable steel wheels.
The 'AS' designation typically signifies the standard 4WD model without further extensive trim packages, focusing on core functionality and performance.
2006 Yamaha YFM450AS 4WD Specifications
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Vehicle History Report
What Problems Does the 2006 Yamaha YFM450AS 4WD Have?
The 2006 Yamaha YFM450AS 4WD, being part of the well-established Grizzly line, generally boasts strong long-term reliability. However, like any machine with age and usage, certain issues can arise. One of the more commonly reported concerns, particularly on models from this era, is related to the carburetor. Over time, these can become clogged with debris or experience wear, leading to starting problems, rough idling, or a loss of power. This often necessitates a thorough cleaning or, in some cases, a rebuild or replacement.
Another area to pay attention to is the drive system. While generally robust, the universal joints (U-joints) on the drive shafts can experience wear, leading to clunking noises or vibrations, especially when engaging 4WD or under acceleration. Regular inspection and lubrication are key to preventing premature failure. The CV boots, which protect the constant velocity joints, can also tear, allowing dirt and moisture to ingress and damage the joints themselves.
Suspension components, such as ball joints and bushings, can show wear after many miles of hard riding. This can manifest as looseness in steering, clunking over bumps, or uneven tire wear. The plastic body panels, while offering a degree of impact resistance, can become brittle with age and exposure to UV rays, making them more susceptible to cracking or breaking from minor impacts.
Yamaha has a generally good track record with recalls, and for the 2006 YFM450AS, there aren't widespread, model-defining recalls that significantly detract from its reliability. However, it's always advisable to check with Yamaha or official recall databases for any specific service bulletins or recalls that may have been issued for this particular model year and VIN.
In terms of long-term reliability, the engine and transmission (Yamaha's Ultramatic automatic) are known for their durability when properly maintained. Regular oil changes, air filter cleaning, and proper coolant levels are crucial. Addressing minor issues promptly, such as carburetor adjustments or U-joint lubrication, will contribute significantly to the overall longevity of the YFM450AS 4WD.
Another area to pay attention to is the drive system. While generally robust, the universal joints (U-joints) on the drive shafts can experience wear, leading to clunking noises or vibrations, especially when engaging 4WD or under acceleration. Regular inspection and lubrication are key to preventing premature failure. The CV boots, which protect the constant velocity joints, can also tear, allowing dirt and moisture to ingress and damage the joints themselves.
Suspension components, such as ball joints and bushings, can show wear after many miles of hard riding. This can manifest as looseness in steering, clunking over bumps, or uneven tire wear. The plastic body panels, while offering a degree of impact resistance, can become brittle with age and exposure to UV rays, making them more susceptible to cracking or breaking from minor impacts.
Yamaha has a generally good track record with recalls, and for the 2006 YFM450AS, there aren't widespread, model-defining recalls that significantly detract from its reliability. However, it's always advisable to check with Yamaha or official recall databases for any specific service bulletins or recalls that may have been issued for this particular model year and VIN.
In terms of long-term reliability, the engine and transmission (Yamaha's Ultramatic automatic) are known for their durability when properly maintained. Regular oil changes, air filter cleaning, and proper coolant levels are crucial. Addressing minor issues promptly, such as carburetor adjustments or U-joint lubrication, will contribute significantly to the overall longevity of the YFM450AS 4WD.
How long will the 2006 Yamaha YFM450AS 4WD last?
Based on owner data and maintenance habits, the 2006 Yamaha YFM450AS 4WD can achieve a significant service life, often exceeding 10,000 to 15,000 miles or 10-15 years of use, especially with diligent care. Its long-term durability is a hallmark of Yamaha engineering. The engine and Ultramatic transmission are renowned for their robustness, capable of enduring many riding seasons. However, weaknesses that emerge over time often relate to wear and tear on consumables and components subject to stress. These include suspension bushings, ball joints, drive shaft U-joints, and brake components. The carburetor, as previously mentioned, may require attention. With consistent maintenance, including regular fluid changes, lubrication, and prompt attention to any developing issues, the YFM450AS 4WD demonstrates remarkable longevity, making it a dependable choice for extended ownership.
What Technology & Safety Features are Included?
The 2006 Yamaha YFM450AS 4WD is an off-road focused machine, and as such, its technology and safety features are geared towards functionality and performance rather than luxury or advanced automotive-style systems.
Built-in Tech: The primary technological feature is the instrumentation cluster. This typically includes a digital LCD display that provides essential information such as speed, odometer, trip meter, clock, and indicators for 4WD engagement, neutral, and reverse. This utilitarian display is designed for clear readability in various lighting conditions. The 'On-Command' push-button 4WD system is a key piece of technology, allowing the rider to switch between 2WD and 4WD modes seamlessly while on the move, enhancing its adaptability to different terrains.
Entertainment Features: Entertainment features are virtually non-existent on the YFM450AS 4WD, which is standard for ATVs of this era. The focus is on the riding experience itself and the connection with the environment.
Driver-Assistance Features: There are no advanced driver-assistance systems (ADAS) found on this ATV. Systems like adaptive cruise control, lane keeping assist, or automatic emergency braking are not applicable or present in this vehicle category. The primary 'assistance' comes from the robust 4WD system, which aids in maintaining traction and control. The automatic transmission (Ultramatic) with engine braking also contributes to a more controlled and less fatiguing ride, especially on descents.
Safety Features: Safety features are primarily mechanical and design-based. The robust steel frame provides structural integrity. The sealed hydraulic disc brakes, front and rear, offer reliable stopping power. The handlebars are designed with comfortable grips and a secure mounting system. The placement of controls is ergonomic to minimize rider distraction. Aggressive tread tires provide essential grip. The headlights and taillight improve visibility to others. Unlike cars, ATVs do not undergo standardized crash testing in the same manner, so formal crash-test ratings are not available. However, the design prioritizes stability and rider control, with features like independent suspension contributing to a smoother and more predictable ride, thereby reducing the likelihood of accidents.
Built-in Tech: The primary technological feature is the instrumentation cluster. This typically includes a digital LCD display that provides essential information such as speed, odometer, trip meter, clock, and indicators for 4WD engagement, neutral, and reverse. This utilitarian display is designed for clear readability in various lighting conditions. The 'On-Command' push-button 4WD system is a key piece of technology, allowing the rider to switch between 2WD and 4WD modes seamlessly while on the move, enhancing its adaptability to different terrains.
Entertainment Features: Entertainment features are virtually non-existent on the YFM450AS 4WD, which is standard for ATVs of this era. The focus is on the riding experience itself and the connection with the environment.
Driver-Assistance Features: There are no advanced driver-assistance systems (ADAS) found on this ATV. Systems like adaptive cruise control, lane keeping assist, or automatic emergency braking are not applicable or present in this vehicle category. The primary 'assistance' comes from the robust 4WD system, which aids in maintaining traction and control. The automatic transmission (Ultramatic) with engine braking also contributes to a more controlled and less fatiguing ride, especially on descents.
Safety Features: Safety features are primarily mechanical and design-based. The robust steel frame provides structural integrity. The sealed hydraulic disc brakes, front and rear, offer reliable stopping power. The handlebars are designed with comfortable grips and a secure mounting system. The placement of controls is ergonomic to minimize rider distraction. Aggressive tread tires provide essential grip. The headlights and taillight improve visibility to others. Unlike cars, ATVs do not undergo standardized crash testing in the same manner, so formal crash-test ratings are not available. However, the design prioritizes stability and rider control, with features like independent suspension contributing to a smoother and more predictable ride, thereby reducing the likelihood of accidents.
What Colors Options are Available?
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2006 Yamaha YFM450AS 4WD Prices and Market Value
When new, the 2006 Yamaha YFM450AS 4WD likely retailed in the range of $6,000 to $7,500, depending on dealership and any promotional offers at the time. The used market for this model currently sees prices ranging broadly from $2,500 to $5,500. This depreciation is typical for ATVs, which are subject to wear and tear from off-road use. Factors significantly affecting its resale value include its overall condition, mileage (hours of use), maintenance history, and the presence of any aftermarket modifications. A well-maintained unit with low hours and original components will command a higher price than one that has been heavily used or modified. Yamaha's reputation for reliability also helps to maintain a strong resale value compared to some competitors, as buyers trust the brand's durability.
2006 Yamaha YFM450AS 4WD Cost of Ownership
Owning a 2006 Yamaha YFM450AS 4WD is generally economical, especially when considering its robust nature. Insurance costs vary by location and coverage but are typically reasonable for an ATV. Fuel consumption is moderate, averaging around 15-25 MPG, depending on usage. Routine maintenance, including oil changes, filter replacements, and lubrication, is crucial and relatively inexpensive. Repair costs can vary; while major engine or transmission work can be costly, many common issues like carburetor cleaning or suspension component replacement are manageable. Overall, with good maintenance, it is an economical vehicle to own, offering good value for its off-road capabilities.
2006 Yamaha YFM450AS 4WD Fuel Efficiency
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2006 Yamaha YFM450AS 4WD Insurance
Insurance for a 2006 Yamaha YFM450AS 4WD is moderately priced, reflecting its status as a Vehicle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2006 Yamaha YFM450AS 4WD Compare to Other Vehicle?
The 2006 Yamaha YFM450AS 4WD competes in the mid-size utility ATV segment, often going head-to-head with models like the Honda Foreman 450, Kawasaki Prairie 400, and Suzuki TwinPeaks 700 (though the Suzuki is a larger displacement).
Performance: In terms of performance, the YFM450AS 4WD offers a balanced blend of power and agility. Its 421cc engine provides sufficient torque for trail riding and moderate towing. Rivals like the Honda Foreman 450 offer comparable engine size and reliability, while the Suzuki TwinPeaks 700, being a larger machine, would naturally have an edge in raw power and towing capacity, but at a higher price point and with a larger footprint.
Features: Yamaha's Ultramatic transmission with engine braking and the On-Command 4WD system are standout features for the YFM450AS 4WD, offering convenience and control. Honda's Hondamatic transmission is also highly regarded for its durability and smooth operation. Kawasaki's Prairie series often featured robust suspension and capable 4WD systems.
Reliability: This is where Yamaha, Honda, and Suzuki typically shine. All three brands are renowned for building incredibly reliable and durable ATVs. The YFM450AS 4WD benefits from Yamaha's established reputation for longevity, often considered on par with or exceeding Honda's legendary reliability. The Prairie series from Kawasaki is also well-built.
Price: On the used market, the YFM450AS 4WD generally sits in a competitive price bracket. It often offers a good balance of capability and affordability compared to larger displacement models like the Suzuki TwinPeaks 700, which would command a higher price.
Recommendations:
For a rider seeking a dependable, capable, and reasonably priced mid-size 4WD ATV for general trail riding and light utility work, the 2006 Yamaha YFM450AS 4WD remains a strong choice, holding its own against its key rivals.
Performance: In terms of performance, the YFM450AS 4WD offers a balanced blend of power and agility. Its 421cc engine provides sufficient torque for trail riding and moderate towing. Rivals like the Honda Foreman 450 offer comparable engine size and reliability, while the Suzuki TwinPeaks 700, being a larger machine, would naturally have an edge in raw power and towing capacity, but at a higher price point and with a larger footprint.
Features: Yamaha's Ultramatic transmission with engine braking and the On-Command 4WD system are standout features for the YFM450AS 4WD, offering convenience and control. Honda's Hondamatic transmission is also highly regarded for its durability and smooth operation. Kawasaki's Prairie series often featured robust suspension and capable 4WD systems.
Reliability: This is where Yamaha, Honda, and Suzuki typically shine. All three brands are renowned for building incredibly reliable and durable ATVs. The YFM450AS 4WD benefits from Yamaha's established reputation for longevity, often considered on par with or exceeding Honda's legendary reliability. The Prairie series from Kawasaki is also well-built.
Price: On the used market, the YFM450AS 4WD generally sits in a competitive price bracket. It often offers a good balance of capability and affordability compared to larger displacement models like the Suzuki TwinPeaks 700, which would command a higher price.
Recommendations:
- Similar Alternatives: If reliability and balanced performance are key, the Honda Foreman 450 (or later 500 models) is an excellent alternative, known for its bulletproof engineering and comfortable ride. The Kawasaki Prairie 400 is another solid contender, offering good value.
- Better Alternatives (if budget allows): For more power and utility, consider a larger displacement model like a used Yamaha Grizzly 660 or Honda Rubicon 500, which offer greater towing capacity and more robust performance for demanding tasks. If you prioritize advanced features and modern design, looking at newer models from any of these brands would be beneficial, but this would significantly increase the price.
For a rider seeking a dependable, capable, and reasonably priced mid-size 4WD ATV for general trail riding and light utility work, the 2006 Yamaha YFM450AS 4WD remains a strong choice, holding its own against its key rivals.
Final Verdict: Is the 2006 Yamaha YFM450AS 4WD a Good Vehicle?
The 2006 Yamaha YFM450AS 4WD is ideally suited for recreational trail riders, farmers, or hunters who need a capable and reliable 4WD ATV for moderate terrain and light to medium utility tasks. It's perfect for those who value Yamaha's renowned durability and straightforward functionality over cutting-edge technology. Given its age, buying this model new is impossible; therefore, it is definitely worth buying as a used vehicle, provided it has been well-maintained. Look for units with a clear service history and minimal signs of abuse. Specific trims are consolidated into the 450AS designation, so focus on condition and maintenance. If you're seeking a dependable workhorse or trail companion that won't break the bank, the YFM450AS 4WD is a solid investment in the used market.
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.