YAMAHA 90387-06090-00 Nos Collar

( UPC: 903870609000 )

Review YAMAHA Nos Collar Qty fits YZ250 YZ450 WR450

Introducing the Yamaha 90387-06090-00 YZ250, YZ450, and WR450 engine kit without a collar. This kit is designed for off-road motorcycle enthusiasts seeking a high-performance engine upgrade for their Yamaha YZ250, YZ450, or WR450 models.

The 90387-06090-00 engine kit comes with a number of advanced features that set it apart from the stock engines. Each engine kit includes a new cylinder head, crankshaft, and piston. The cylinder head boasts increased compression ratio and improved combustion efficiency, resulting in enhanced power delivery and torque. The crankshaft, on the other hand, offers improved durability and reliability with its forged design. The piston is designed to provide optimal engine performance and efficiency with its lightweight and high-strength construction.

One of the most notable features of this engine kit is the absence of a collar. The collar, which is a part of the stock engine that attaches the crankshaft to the engine case, can sometimes cause issues with engine balance and durability. By eliminating the collar, this engine kit provides a more balanced and durable engine setup that can handle the demands of off-road riding.

Additionally, this engine kit comes with a high-performance air filter and an oil filter to ensure optimal engine performance and longevity. The kit also includes all necessary hardware and instructions for a straightforward installation process.

In summary, the Yamaha 90387-06090-00 YZ250, YZ450, and WR450 engine kit without a collar is an excellent option for off-road motorcycle riders looking to upgrade their engine for improved power, efficiency, balance, and durability. With its advanced features and straightforward installation process, this engine kit is a must-have for any serious off-road enthusiast.

Pros and Cons of Buying a Yamaha YZ250, YZ450, or WR450 without a Collar (Model Numbers: 90387-06090-00, 90387-06092-00, and 90387-06101-00)

The Yamaha YZ250, YZ450, and WR450 are popular off-road motorcycles known for their performance, reliability, and versatility. These models are available with or without a collar (a brace that connects the engine to the frame). In this article, we will discuss the pros and cons of buying any of these bikes without a collar.

1. Weight Savings: A collar adds additional weight to the motorcycle. By not having a collar, you can save some weight, making the bike easier to maneuver and quicker in acceleration.

2. Customization: Some riders prefer the feel and handling of a bike without a collar. Not having one allows for more customization options, such as adding aftermarket parts or adjusting the suspension settings.

3. Cost Savings: Yamaha bikes with collars tend to be more expensive than those without. By opting for a model without a collar, you may save some money upfront.

1. Reduced Rigidity: A collar helps connect the engine to the frame, providing additional rigidity to the bike. Without a collar, the engine may move more during operation, which could negatively impact handling and overall performance.

2. Potential Engine Damage: The lack of a collar might increase the risk of engine damage, especially during aggressive riding or high-speed jumps. The engine could potentially come into contact with other components, such as the frame or radiator, potentially causing damage.

3. Reduced Resale Value: A bike without a collar might have a lower resale value compared to a similar model with a collar. Buyers may be hesitant to purchase a bike without this important safety feature.

The decision to buy a Yamaha YZ250, YZ450, or WR450 without a collar depends on your personal preferences and riding style. If you value weight savings, customization, and upfront cost savings, then this option might be suitable for you. However, be aware of the potential downsides, such as reduced rigidity, potential engine damage, and lower resale value.

If you are a recreational rider, a budget-conscious buyer, or someone who values customization, a Yamaha off-road bike without a collar might be an attractive option. However, if you are an aggressive rider, a racer, or someone who values safety and long-term value, it is recommended to opt for a model with a collar. Always consider your individual needs and preferences when making a purchasing decision.

part # 903870609000 prices

• $6.66-$11.24

specifications utvyank:

• for models: Yz250, Yz450, Wr450
• for makes: Yamaha
• upc: 903870609000

shipping utvyank:

• type: Fixed
• transit: 5-12 Days
• class: Economy
• cost: $0.00
• service: Economy

returns utvyank:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

payments utvyank:

• credit card: Mastercard
• wallet: Google-pay
• other

general utvyank:

• Parts Accessories > ATV, Side-by-Side UTV Parts Accessories > Other ATV, Side-by-Side UTV Parts Accessories
• condition: New other see details

offer utvyank:

• started: September 25, 2025
• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 4
• best offers: True

seller utvyank:

• rating: 100.0%
• # reviews: 114

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