2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.
2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.
2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.

2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.

(30 customer reviews)

£1,000.00

449 cc liquid-cooled, single-cylinder, four-stroke engine

DOHC, 4-valve cylinder head design

Yamaha Fuel Injection (YFI) with electronic throttle control

Approximate maximum power: 53 hp

Approximate maximum torque: 45 Nm

5-speed close-ratio transmission

Wet multi-plate hydraulic clutch

Aluminum bilateral beam frame

KYB inverted front fork, fully adjustable

KYB rear shock with linkage, fully adjustable

Front brake: 270 mm hydraulic disc

Rear brake: 245 mm hydraulic disc

Front tire: 80/100-21

2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT — Full Specifications, Performance, and Comparison

The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT represents one of the most reliable and high-performance motocross engines available for the YZ450 platform. This engine motor has only 4 hours of total use, ensuring it is practically new and ready for immediate installation, making it an ideal choice for riders seeking a high-quality replacement or performance upgrade.

Engine Overview

The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT is a high-output 450cc, liquid-cooled, single-cylinder, four-stroke engine. It is designed for maximum power delivery, reliability, and race-ready performance. Yamaha’s advanced engineering ensures a balance of torque, top-end power, and smooth acceleration across a wide RPM range.

Key engine specifications:

  • Displacement: 449 cc

  • Bore x Stroke: 97 mm × 60.8 mm

  • Compression Ratio: 12.8:1

  • Cooling System: Liquid-cooled

  • Fuel Delivery: Fuel Injection (Yamaha Fuel Injection – YFI)

  • Ignition: TCI (Transistor Controlled Ignition)

  • Starter: Electric start

  • Transmission: 5-speed close-ratio

  • Clutch: Wet multi-plate hydraulic

  • Engine Status: Complete running motor, 4 hours total usage

The engine has been meticulously maintained, and its 4 HOURS TOTAL MINT condition guarantees minimal wear, ensuring longevity and high performance.

Performance and Reliability

The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT delivers a powerful, race-ready performance. The high-compression four-stroke design provides strong torque at low RPMs and explosive power at higher revs, perfect for motocross racing or off-road applications.

Performance highlights:

  • Smooth and responsive power delivery

  • Excellent throttle response thanks to Yamaha Fuel Injection

  • High-reliability components designed for aggressive use

  • Minimal maintenance required due to low total hours

Because this engine is essentially brand new with only 4 hours of use, it provides a rare opportunity to own a YZ450F engine motor without the break-in period or wear concerns typical of used engines.

Chassis Compatibility and Installation

The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT is compatible with the YZ450F 2018 model frame and can also fit other late-model YZ450F bikes with minor adjustments.

Key installation features:

  • Complete running motor, ready for direct installation

  • Includes all necessary mounting points and components

  • Maintains stock performance characteristics

  • Minimal modification required for aftermarket parts compatibility

This makes the engine ideal for racers, enthusiasts, or anyone looking to upgrade or replace a worn-out YZ450F engine.

Comparison With Related Products

YZ450F 2018 vs KTM 450 SX-F Engine:

  • Yamaha’s engine is known for smoother power delivery and lower mid-range heat generation

  • KTM engines often offer slightly higher peak horsepower but require more frequent maintenance

YZ450F 2018 vs Honda CRF450R Engine:

  • Honda engines are very reliable but heavier than the Yamaha YZ450F

  • Yamaha offers better aftermarket support and parts availability for older models

YZ450F 2018 vs Suzuki RM-Z450 Engine:

  • Suzuki engines deliver competitive power but have a shorter maintenance interval

  • Yamaha’s 4 HOURS TOTAL MINT condition provides a significant advantage in longevity

Overall, the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT stands out as one of the most accessible and high-value options in the 450cc four-stroke motocross engine market.

Maintenance and Longevity

Owning a 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT provides peace of mind due to its low usage hours and high build quality. Routine maintenance should include:

  • Oil changes every 10–15 hours of riding

  • Air filter servicing

  • Periodic inspection of valves, cam chain, and clutch plates

  • Fuel system checks for injector cleanliness

With only 4 HOURS TOTAL MINT, this engine is expected to offer years of reliable performance under normal racing and recreational conditions.

Pricing and Market Value

Used 2018 YZ450F engines typically range from $2,500 to $3,500 depending on condition and hours. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT commands a premium due to its extremely low hours and “like-new” condition, making it a smart investment for serious riders.

Final Verdict

For racers, off-road enthusiasts, or anyone needing a replacement motor, the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT is an exceptional choice. With minimal usage, high reliability, and race-ready performance, it offers a rare opportunity to acquire a nearly new YZ450 engine at a fraction of the cost of a brand-new bike.

This engine guarantees performance, longevity, and immediate installation readiness, making it one of the most valuable 450cc four-stroke engines on the market today.

30 reviews for 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.

  1. Oscar W. –

    A massive thank you to FE POWERSPORTS for the incredible service and prompt arrival. The delivery arrived safely here in Lisbon, Portugal. Ran it hard all afternoon to test the handling characteristics and it is beautifully balanced. It has completely earned our highest validation and total appreciation.

  2. Theo H. –

    I spent several hours testing its limits on local tracks and the engineering is outstanding. Completely vetted, approved, and deeply appreciated by everyone in our local club. I want to express my deepest appreciation to FE POWERSPORTS for handling everything perfectly. Having it operational here in Oslo, Norway is fantastic.

  3. Ava D. –

    Greetings from Birmingham, United Kingdom. I am so happy with this item. Tested it extensively across rough, demanding terrain and the performance completely blew me away. I cannot thank FE POWERSPORTS enough for this top-tier buying experience. It has completely earned our highest validation and total appreciation.

  4. Jack T. –

    The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. arrived on time. Gave it a thorough workout on technical single-tracks and the handling is razor-sharp. Exceeded every single expectation I had. You can instantly feel the premium quality of the components used.

  5. Leon M. –

    Beyond grateful for this purchase, it has completely changed my weekends. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. was delivered perfectly to me here in Missouri. After putting it through its paces over a long weekend journey, I am thoroughly impressed. An absolute masterclass in engineering that gets my highest possible validation.

  6. Elena T. –

    Meticulously tested over loose gravel and deep mud, showing remarkable durability and power. Completely vetted, approved, and deeply appreciated by everyone in our local club. So incredibly grateful to FE POWERSPORTS for getting this safely to my doorstep. Having it operational here in Marseille, France is fantastic.

  7. Mia W. –

    The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. arrived on time. It has been fully vetted, pushed to the limit, and officially approved by our crew. Exceeded every single expectation I had. So grateful for the seamless transaction and top-notch technical support.

  8. Luca H. –

    The pure excitement this brings is hard to put into words. Put it to work immediately out of the crate and the build quality is bulletproof. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. is outstanding. The attention to detail on this model is nothing short of spectacular.

  9. Theodore B. –

    Gave it a thorough workout on technical single-tracks and the handling is razor-sharp. So grateful for the seamless transaction and top-notch technical support. Best investment I’ve made in years, hands down. Highly recommend this store.

  10. Michael H. –

    I couldn’t be happier or more satisfied with this. Tested, tuned, and verified—the mechanics and tolerances are top-tier. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. is outstanding. It handles with absolute precision and gives the rider massive confidence.

  11. Elijah L. –

    The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. arrived on time. I spent hours putting it through its paces over steep inclines and rough tracks. The pure excitement this brings is hard to put into words. The attention to detail on this model is nothing short of spectacular.

  12. Chloe W. –

    Greetings from Naples, Italy. I am so happy with this item. Tested it extensively across rough, demanding terrain and the performance completely blew me away. My heartfelt gratitude goes out to FE POWERSPORTS for delivering such a premium machine. Completely vetted, approved, and deeply appreciated by everyone in our local club.

  13. Olivia L. –

    Best investment I’ve made in years, hands down. Tested, tuned, and verified—the mechanics and tolerances are top-tier. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. is outstanding. FE Powersports delivered phenomenal customer service and lightning-fast shipping.

  14. Levi M. –

    The out-of-the-box performance was completely tested and matches all professional specifications. A brilliant asset that has been fully approved for absolute performance. I am incredibly grateful to the team for delivering this beauty. It is an absolute pleasure having it here in North Dakota.

  15. Pierre M. –

    My heartfelt thanks to everyone involved, this transaction was absolutely perfect. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. was delivered perfectly to me here in Utah. Tested, verified, and completely vetted under heavy loads with stellar performance. It is fully vetted, approved, and deeply treasured by our family.

  16. Benjamin S. –

    Greetings from New York. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. has arrived safely and I am so thankful. Ran it hard through loose dirt and gravel to verify its durability, and it is absolute perfection. A brilliant asset that has been fully approved for absolute performance.

  17. William D. –

    After testing the throttle response and suspension setup, I am deeply impressed. FE Powersports delivered phenomenal customer service and lightning-fast shipping. Best investment I’ve made in years, hands down. Highly recommend this store.

  18. Sofia T. –

    After testing it extensively in deep mud and loose gravel, it performed flawlessly. It runs beautifully, looks amazing, and is built to withstand serious abuse. Best investment I’ve made in years, hands down. Highly recommend this store.

  19. Ava J. –

    Greetings from Wyoming. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. has arrived safely and I am so thankful. I have meticulously checked every detail and verified its power on our local tracks. It is fully vetted, approved, and deeply treasured by our family.

  20. Jack D. –

    My heartfelt gratitude goes out to FE POWERSPORTS for delivering such a premium machine. The delivery arrived safely here in Barcelona, Spain. After putting it through its paces during an intense initial field test, it passed with flying colours. Fully operational, completely approved, and deeply loved by our family.

  21. Ethan W. –

    I am so deeply appreciative of the wonderful customer experience from start to finish. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. was delivered perfectly to me here in New Hampshire. After putting it through its paces over a long weekend journey, I am thoroughly impressed. Completely approved for any serious enthusiast looking for true mechanical reliability.

  22. Matteo M. –

    Beyond grateful for this purchase, it has completely changed my weekends. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. was delivered perfectly to me here in Oklahoma. We gave it a thorough workout on technical terrain and the build quality is flawless. Completely approved for any serious enthusiast looking for true mechanical reliability.

  23. George D. –

    Greetings from Krakow, Poland. I am so happy with this item. After putting it through its paces during an intense initial field test, it passed with flying colours. My heartfelt gratitude goes out to FE POWERSPORTS for delivering such a premium machine. It has completely earned our highest validation and total appreciation.

  24. Camila G. –

    It brings back that raw, pure childhood happiness. I spent hours putting it through its paces over steep inclines and rough tracks. This 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. is outstanding. It handles with absolute precision and gives the rider massive confidence.

  25. Anna T. –

    I want to express my deepest appreciation to FE POWERSPORTS for handling everything perfectly. The delivery arrived safely here in Madrid, Spain. Having completed a full series of track testing, the build quality is clearly exceptional. Fully verified and enthusiastically approved, thank you for a wonderful purchase.

  26. Matteo G. –

    After putting it through its paces during an intense initial field test, it passed with flying colours. Completely vetted, approved, and deeply appreciated by everyone in our local club. I am filled with gratitude toward FE POWERSPORTS for an absolutely flawless order process. Having it operational here in Bergen, Norway is fantastic.

  27. Gabriel B. –

    Tested it extensively under demanding trail conditions and it completely blew me away. A brilliant asset that has been fully approved for absolute performance. Huge thanks for a completely seamless experience and a truly amazing product. It is an absolute pleasure having it here in Alabama.

  28. Lily J. –

    Huge appreciation to FE POWERSPORTS for their fast shipping and brilliant communication. The delivery arrived safely here in Glasgow, United Kingdom. Ran it hard all afternoon to test the handling characteristics and it is beautifully balanced. An outstanding piece of machinery that gets our full and unconditional approval.

  29. Finn W. –

    Greetings from Switzerland. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. has arrived safely and I am so thankful. The out-of-the-box performance was completely tested and matches all professional specifications. Everything is verified and fully approved, I will definitely be a returning customer.

  30. Zoey M. –

    I have meticulously checked every detail and verified its power on our local tracks. A brilliant asset that has been fully approved for absolute performance. I am so deeply appreciative of the wonderful customer experience from start to finish. It is an absolute pleasure having it here in Michigan.

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