yamaha ypvs f2 350

yamaha ypvs f2 350 is a legendary motorcycle that has captured the hearts of motorcycle enthusiasts and collectors alike. Known for its innovative design, impressive performance, and technological advancements during its era, the Yamaha YPVS F2 350 remains a highly sought-after model today. This motorcycle epitomizes Yamaha’s commitment to engineering excellence and rider enjoyment, blending power, agility, and reliability into a compact yet formidable package. Whether you are a vintage bike collector, a Yamaha enthusiast, or someone interested in classic motorbikes, understanding the history, features, and enduring appeal of the Yamaha YPVS F2 350 offers valuable insight into one of the most iconic models in Yamaha’s lineup.

History and Development of the Yamaha YPVS F2 350

Origins and Background

The Yamaha YPVS F2 350 was introduced in the mid-1980s, during a period when Yamaha was pushing the boundaries of motorcycle technology. It was part of Yamaha’s YPVS (Yamaha Power Valve System) series, a groundbreaking technology designed to optimize power delivery across the rev range. The F2 350 was developed as a sport-oriented motorcycle, aimed at riders seeking a combination of high performance and lightweight handling. It was positioned as a competitive model in the 350cc class, which was highly popular among sportbike enthusiasts at the time.

Technical Innovations

One of the most significant innovations in the Yamaha YPVS F2 350 was the incorporation of Yamaha’s YPVS technology, which automatically adjusted the exhaust port timing to improve torque and power at various engine speeds. This system allowed for better acceleration and overall performance, setting it apart from many contemporaries. The F2 350 also featured a lightweight aluminum frame, advanced suspension components, and a high-revving engine that contributed to its sporty character.

Market Reception and Legacy

The F2 350 received positive reviews for its agility, power-to-weight ratio, and technological sophistication. It became a favorite among sportbike riders and contributed to Yamaha’s reputation for innovative engineering. Over the years, the model has gained a cult following, appreciated both for its historical significance and its riding dynamics. Its legacy endures as a classic example of 1980s motorcycle design and technology.

Design and Specifications

Engine and Performance

The Yamaha YPVS F2 350 was powered by a 347cc, two-stroke, twin-cylinder engine. Key specifications include:

Max Power: Approximately 55-60 horsepower
Cooling System: Liquid-cooled
Carburetion: Mikuni VM series carburetors
Transmission: 6-speed gearbox

This engine was renowned for its high-revving nature, enabling riders to extract impressive performance with lively acceleration and top-end speed.

Chassis and Suspension

The F2 350 was built with a lightweight aluminum frame, which contributed to its nimbleness and handling. Its suspension setup included:

Front: Telescopic forks
Rear: Uni-Trak swingarm with twin shock absorbers

This suspension system provided stability and comfort, especially during aggressive cornering.

Brakes and Tires

The model was equipped with disc brakes at the front and rear, offering strong stopping power. Tires were designed for sport riding, with a focus on grip and responsiveness, further enhancing the motorcycle’s agility.

Dimensions and Weight

Length: Approximately 2,050 mm
Width: Around 720 mm
Height: About 1,100 mm
Wheelbase: 1,350 mm
Curb Weight: Roughly 150 kg

These dimensions contributed to the bike’s sporty stance and ease of maneuverability.

Riding Experience and Performance

Handling and Maneuverability

One of the standout features of the Yamaha YPVS F2 350 is its exceptional handling. The lightweight frame, combined with a balanced suspension setup, allowed for sharp turns and confident control at high speeds. Riders praised its agility in both city streets and twisty mountain roads.

Engine Behavior and Power Delivery

Thanks to Yamaha’s YPVS technology, the engine delivered a broad power band, making acceleration smooth and predictable. The two-stroke engine responded eagerly to throttle input, providing a sporty and exhilarating ride. The high-revving nature meant that riders could push the bike to its limits, especially on open roads or racetrack environments.

Comfort and Ergonomics

While primarily designed as a sportbike, the F2 350 offered a comfortable riding position with a slightly aggressive stance. Its ergonomics suited experienced riders, but it was manageable for those transitioning from beginner bikes due to its balanced weight distribution and controllability.

Maintenance and Restoration of the Yamaha YPVS F2 350

Common Maintenance Tasks

Owning a Yamaha YPVS F2 350 today requires regular maintenance to keep it performing at its best:

Engine oil and coolant checks
Carburetor cleaning and tuning
Chain and sprocket inspection
Brake system maintenance
Suspension and frame checks

Regularly servicing these components ensures longevity and reliability.

Restoration Tips for Classic Enthusiasts

For collectors and restorers, preserving the F2 350 involves:

Source authentic Yamaha parts or high-quality aftermarket components
Restore or replace the original paintwork to maintain aesthetic value
Inspect and refurbish the YPVS system to ensure optimal performance
Check electrical wiring and replace aged components
Maintain the engine's internal components through professional rebuilds if necessary

Restoring an F2 350 to its original condition can significantly increase its value and appeal.

Collectibility and Market Value

Factors Influencing Value

The Yamaha YPVS F2 350’s value depends on several factors:

Condition of the motorcycle (original vs. restored)
Rarity and production numbers
Historical significance and provenance
Completeness of original parts
Market demand among collectors

Current Market Trends

In recent years, the F2 350 has seen a resurgence in interest among vintage motorcycle collectors. Well-maintained or fully restored models can fetch prices ranging from several thousand to over ten thousand dollars, depending on their condition. Its status as a classic Yamaha two-stroke makes it a prized possession for enthusiasts.

Where to Find a Yamaha YPVS F2 350

Potential buyers can look for the Yamaha YPVS F2 350 through:

Vintage motorcycle dealerships
Online auction platforms like eBay
Specialized motorcycle shows and swap meets
Online forums and enthusiast communities

Patience and research are key when seeking a quality example of this iconic bike.

Conclusion: The Enduring Appeal of the Yamaha YPVS F2 350

The Yamaha YPVS F2 350 remains a symbol of innovation and performance in the world of classic motorcycles. Its combination of cutting-edge technology, sporty design, and exhilarating riding experience has cemented its place in motorcycle history. For collectors, restorers, and riders alike, the F2 350 offers a unique blend of nostalgia and thrill, embodying Yamaha’s pioneering spirit. Whether appreciated for its engineering marvels or its vintage charm, the Yamaha YPVS F2 350 continues to inspire admiration and enthusiasm among motorcycle aficionados worldwide.

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Yamaha YPVS F2 350: A Comprehensive Analysis of the Classic Two-Stroke Legend

The Yamaha YPVS F2 350 stands as a significant chapter in the history of two-stroke sport bikes, blending innovative technology with aggressive styling. Known for its remarkable performance, lightweight design, and distinctive Yamaha engineering, the F2 350 remains a beloved model among enthusiasts and collectors alike. In this guide, we'll explore the origins, technical specifications, performance characteristics, and maintenance considerations that make the Yamaha YPVS F2 350 a standout motorcycle from the late 1980s.

Origins and Historical Context

The Yamaha YPVS F2 350 emerged during a period of intense innovation in sport motorcycle development. During the late 1980s, Yamaha sought to combine the raw power of two-stroke engines with the technological advancements of the era, leading to the creation of the YPVS (Yamaha Power Valve System) models.

Background Highlights:

Introduced in 1984 as part of Yamaha's YPVS lineup
Designed to compete with other high-performance bikes like the Suzuki RG series and Kawasaki's two-stroke offerings
Notable for its lightweight chassis and aggressive styling
Marked a transition point before the industry shifted towards four-stroke dominance

The F2 350, specifically, was designed as a street-oriented model with track-ready performance, appealing to riders who craved speed and agility in urban and twisty road settings.

Technical Specifications & Design Features

Understanding the core specifications of the Yamaha YPVS F2 350 provides insight into its capabilities and appeal.

Engine & Performance:

Engine Type: 347cc, liquid-cooled, two-stroke, single-cylinder with Yamaha YPVS (Power Valve System)
Bore x Stroke: 64mm x 54mm
Compression Ratio: Approximately 7.8:1
Power Output: Around 60-65 horsepower (varies by market and tuning)
Transmission: 6-speed constant mesh
Fuel System: Mikuni BS34 flat-slide carburetors
Ignition: Digital CDI (Capacitor Discharge Ignition)
Lubrication: Premixed or separate oil injection system, depending on model

Chassis & Suspension:

Frame: Aluminum semi-monocoque chassis, contributing to lightweight agility
Front Suspension: Inverted telescopic forks, approx. 43mm diameter
Rear Suspension: Monoshock with adjustable preload and rebound damping
Wheelbase: Approximately 1,385mm (54.5 inches)
Brakes: Hydraulic disc brakes both front and rear, with multi-piston calipers

Dimensions & Weight:

Seat Height: Around 820mm (32.3 inches)
Dry Weight: Approximately 148 kg (326 lbs)
Fuel Capacity: 17 liters (4.5 gallons)

The Yamaha Power Valve System (YPVS)

One of the defining features of the F2 350 is Yamaha's YPVS technology. This system was designed to optimize power delivery across the engine's RPM range, enhancing performance and throttle response.

How YPVS Works:

The system uses a variable valve timing mechanism, controlled by an electronic actuator.
At low RPM, the power valve remains closed, providing smooth throttle response and better torque.
As RPM increases, the valve opens progressively, increasing exhaust port area, and thus, power output.
This results in a broader power band, making the bike more versatile and rider-friendly.

Benefits of YPVS:

Improved acceleration
Smoother power delivery
Better fuel efficiency compared to traditional two-stroke engines
Reduced emissions for a two-stroke engine

Riding Dynamics & Performance

The Yamaha YPVS F2 350 is celebrated for its lively and responsive handling traits, making it a favorite among sportbike enthusiasts.

Handling & Ride Quality:

Agility: The lightweight chassis and responsive suspension make it nimble through corners.
Stability: The frame geometry offers stability at high speeds, especially on twisty roads.
Braking: Powerful disc brakes provide confident stopping power, vital in spirited riding.

Engine Characteristic:

The two-stroke engine with YPVS delivers rapid throttle response and a high-revving nature.
Power peaks sharply, demanding skilled throttle control.
The bike excels in acceleration, with a punchy delivery that keeps riders engaged.

Ideal Use Cases:

Urban commuting with spirited riding
Track days and lightweight racing
Collecting and vintage motorcycle shows

Maintenance & Common Issues

While the Yamaha YPVS F2 350 is revered for its performance, it requires diligent maintenance to keep it in optimal running condition.

Maintenance Tips:

Regular Oil Changes: Two-strokes demand precise oil mixture; ensure quality oil and proper mixing ratios.
Carburetor Tuning: Mikuni BS34 carbs are sensitive; periodic cleaning and synchronization are essential.
Ignition System: Check CDI units and wiring for faults.
Yamaha Power Valve: Ensure the actuator and linkage are clean, lubricated, and functioning correctly.
Cooling System: Keep the radiator clean and inspect coolant levels.

Common Issues:

Yamaha Power Valve Failure: The actuator can seize or malfunction, causing power delivery issues.
Carburetor Clogging: Due to stale fuel or improper maintenance.
Ignition Problems: CDI failure can result in misfiring or starting issues.
Frame and Suspension Wear: Regular inspection for corrosion or damage, especially in older models.

Restoration & Collectibility

Today, the Yamaha YPVS F2 350 is a sought-after classic, appreciated for its performance heritage and unique styling.

Restoration Tips:

Original parts are increasingly scarce; sourcing OEM components can be challenging but rewarding.
Focus on restoring the frame, suspension, and engine to original specifications.
Preserve or carefully restore the bodywork, maintaining the iconic fairings and decals.

Collectibility & Value:

The F2 350 commands premium prices among vintage Yamaha collectors.
Well-maintained models can fetch higher premiums, especially with documented history.
Restored bikes with original parts are highly desirable.

Conclusion

The Yamaha YPVS F2 350 remains a remarkable example of late-20th-century motorcycle engineering, blending sophisticated technology with thrilling performance. Its innovative Yamaha Power Valve System, lightweight chassis, and aggressive styling make it a standout in the realm of vintage sport bikes. Whether you're a collector, rider, or enthusiast, understanding the intricacies of the Yamaha YPVS F2 350 enriches appreciation for this two-stroke legend. Proper maintenance and restoration can ensure that this classic continues to impress and inspire future generations of motorcycling aficionados.

Question Answer

What are the key features of the Yamaha YPVS F2 350? The Yamaha YPVS F2 350 features a 347cc two-stroke engine, Yamaha's YPVS (YPVS) power valve system for enhanced performance, lightweight chassis, and a sporty design suitable for both street and trail riding.

Is the Yamaha YPVS F2 350 suitable for beginner riders? While the Yamaha YPVS F2 350 offers excellent performance, its powerful engine and lightweight frame make it more suitable for experienced riders. Beginners should consider a less powerful model to start.

What is the top speed of the Yamaha YPVS F2 350? The Yamaha YPVS F2 350 can reach a top speed of approximately 70-75 mph, depending on conditions and modifications.

Are there any common maintenance issues with the Yamaha YPVS F2 350? Common issues include carburetor tuning challenges, piston wear, and fuel system corrosion. Regular maintenance and proper storage can help prevent these problems.

How does the Yamaha YPVS F2 350 compare to other motorcycles in its class? The F2 350 is known for its lightweight design, reliable YPVS system, and sporty performance, making it a competitive choice among classic two-stroke motorcycles of similar capacity.

Is the Yamaha YPVS F2 350 still in production? No, the Yamaha YPVS F2 350 was produced in the late 1980s to early 1990s and is now considered a vintage model.

What should I look for when buying a used Yamaha YPVS F2 350? Check for signs of engine wear, corrosion, frame damage, and ensure the YPVS system functions correctly. A thorough inspection and test ride are recommended.

Are spare parts available for the Yamaha YPVS F2 350? Since the model is vintage, some spare parts may be limited, but many components are still available through specialized classic motorcycle parts suppliers and Yamaha enthusiasts.

Question	Answer
What are the key features of the Yamaha YPVS F2 350?	The Yamaha YPVS F2 350 features a 347cc two-stroke engine, Yamaha's YPVS (YPVS) power valve system for enhanced performance, lightweight chassis, and a sporty design suitable for both street and trail riding.
Is the Yamaha YPVS F2 350 suitable for beginner riders?	While the Yamaha YPVS F2 350 offers excellent performance, its powerful engine and lightweight frame make it more suitable for experienced riders. Beginners should consider a less powerful model to start.
What is the top speed of the Yamaha YPVS F2 350?	The Yamaha YPVS F2 350 can reach a top speed of approximately 70-75 mph, depending on conditions and modifications.
Are there any common maintenance issues with the Yamaha YPVS F2 350?	Common issues include carburetor tuning challenges, piston wear, and fuel system corrosion. Regular maintenance and proper storage can help prevent these problems.
How does the Yamaha YPVS F2 350 compare to other motorcycles in its class?	The F2 350 is known for its lightweight design, reliable YPVS system, and sporty performance, making it a competitive choice among classic two-stroke motorcycles of similar capacity.
Is the Yamaha YPVS F2 350 still in production?	No, the Yamaha YPVS F2 350 was produced in the late 1980s to early 1990s and is now considered a vintage model.
What should I look for when buying a used Yamaha YPVS F2 350?	Check for signs of engine wear, corrosion, frame damage, and ensure the YPVS system functions correctly. A thorough inspection and test ride are recommended.
Are spare parts available for the Yamaha YPVS F2 350?	Since the model is vintage, some spare parts may be limited, but many components are still available through specialized classic motorcycle parts suppliers and Yamaha enthusiasts.

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