fits model: Mx, Formula. make: Ski-doo. year: 1985–1992.

( Part Type: Motor Engine )
The Ski-Doo MX ZR 467 91 E-TEC two-stroke snowmobile engine, manufactured by Bombardier Recreational Products in 1992, represents a significant milestone in snowmobiling technology. This engine, with the model number 470 and various other versions, was introduced in 1985 and underwent several enhancements over the years, reaching its peak with the E-TEC designation in 1991.
This engine belongs to the time-tested Rotax 4-stroke engine family, specifically the 2-stroke version. It utilizes a horizontal in-line two-cylinder design. Its displacement is 467cc, achieved by a bore measurement of 3.5 inches and a stroke length of 3.55 inches. This engine's exceptional power output is delivered through a robust design that features a high-performance crankshaft, an efficient combustion chamber, and a state-of-the-art dual-ignition system.
Featuring Ski-Doo's innovative E-TEC technology, this engine delivers an impressive power output of 165 horsepower at 8,500 RPM. The E-TEC (Electronic Transmission Engineering Computer) technology optimizes power delivery and increases efficiency by controlling the fuel, ignition, and engine braking functions. This results in smoother power transitions and impressive throttle response, fuel efficiency, and low emissions.
The cooling system employed by the MX ZR 467 91 E-TEC engine is a liquid-cooled design. This advanced cooling system ensures that the engine remains temperature-stable even during long, hard ride sessions. The cooling system also facilitates consistent power delivery and extended engine life.
As for maintenance, this high-performance engine is equipped with easily accessible filters, reducing the requirement for extensive disassembly. It is also enhanced with features such as a convenient oil sight glass for effortless oil level checks. Engine components that typically require replacement, like the piston rings and spark plugs, can be swapped out quickly and easily.
The clutching system used on the MX ZR 467 91 E-TEC engine employs a belt drive design. This reliable transmission configuration transfers power from the engine to the skis effectively and seamlessly. The engine's power is delivered to the rotating clutch shoes via a flexible drive belt. This clutching system's ease of adjustment enables fine-tuning it according to various driving conditions and preferences, ensuring optimal power and engine longevity.
Other impressive features of this engine include its durable and lightweight design, achieved through the use of high-strength materials such as aluminum cylinders and a light weight crankshaft. Additionally, the MX ZR 467 91 E-TEC engine includes a centrifugal pre-oiler that sprays lubricant to keep the reversing clutch and other critical components well-lubricated.
In summary, the Ski-Doo MX ZR 467 91 E-TEC engine boasts an impressive power output, exceptional reliability, easy maintenance, and advanced cooling and ignition systems. Whether you're an experienced snowmobiler or just starting out, this high-performance engine is sure to meet your demands for power, responsiveness, and durability.
Buying a used 1992 Ski-Doo MX Z 92 with a 467 91 CM engine (model years can vary, but the engine remains the same for this discussion), originally produced between 1985 and 1989, can be an enticing option for those in search of an older snowmobile with a high-performance engine. Like any purchase, it comes with its pros and cons, allowing potential buyers to weigh their needs and budget against the advantages and limitations of this particular model.
Pros of buying a used Ski-Doo MX Z 92 (467 91 CM engine) snowmobile:1) Established reliability: The 467 91 CM engine has a proven track record of durability and reliability in cold climates. This engine was known for its performance, and its continued popularity among snowmobilers who prioritize power and durability makes it a solid choice for those seeking a high-performance, pre-owned snowmobile.
2) Affordability: Compared to new snowmobiles with similar performance capabilities, used Ski-Doo MX Z 92 models, especially those in good condition, can be found at significant price discounts. This is a considerable advantage for those looking for an affordable way to enjoy high-performance riding.
3) Classic appeal: Older snowmobiles like the MX Z 92 have a unique charm and nostalgic factor that can appeal to collectors, enthusiasts, and those who enjoy the aesthetic appeal of vintage machinery. This can be a major selling point for those who value the look and feel of older models.
4) Adaptability: The 467 91 CM engine, combined with the versatility of the Ski-Doo MX Z 92 platform, offers the ability to modify or upgrade various parts, allowing potential owners to customize their snowmobile to their preferences and desired performance levels.
Cons of buying a used Ski-Doo MX Z 92 (467 91 CM engine) snowmobile:1) Age and wear: The age of a used 1992 Ski-Doo MX Z 92 snowmobile comes with the inherent risk of mechanical issues and maintenance requirements. To mitigate the potential problems that come with an older machine, thorough inspections, maintenance histories, and thorough inspections by a qualified mechanic are necessary.
2) Limited modern features: Compared to newer snowmobiles, the 1992 MX Z 92 does not come equipped with modern features like electric starting, power steering, or digital gauges. These are important considerations for those seeking comfort and convenience in their riding experience.
3) Fuel efficiency: Older snowmobiles like the MX Z 92 are generally less fuel-efficient than newer models. This can lead to increased fuel costs over time for those who frequently use their snowmobiles.
Despite the potential cons, many Ski-Doo MX Z 92 owners find the pros to outweigh the cons, making this an attractive option for those seeking a high-performance, affordable snowmobile with a classic appeal. It's essential to remember that thorough research, inspections, and proper maintenance are crucial when purchasing a used snowmobile to ensure the potential owner is making a smart investment.
Recommendations if considering buying a used 1992 Ski-Doo MX Z 92 with a 467 91 CM engine:1) Inspect the sled thoroughly: A thorough inspection by either yourself or a certified mechanic is crucial for assessing the condition of essential components, such as engine health, suspension, brakes, electrical systems, and cooling systems.
2) Obtain an accurate valuation: To determine a fair price for the snowmobile, research the market value of similar models and use that information as a benchmark when negotiating a purchase price.
3) Consider upgrades and modifications: If possible, explore the potential for upgrading the engine, suspension, or other components to enhance the overall performance of the snowmobile and cater to your specific needs.
4) Build a comprehensive maintenance plan: Develop a solid maintenance schedule and budget to address any potential issues and keep the snowmobile running in optimal condition for seasons to come.
I try to honestly list any and all imperfections if something is missed, it was an oversight and not meant to deceive anyone.
Nice running engine from a Ski Doo Formula.
Your buying is a serious contract.
I ship fast. Also, if you me, I can send you a video of this engine running.
Great compression. Includes everything you see on the engine in the pictures. Shipping in the USA only thanks.