fits model: Yz100, Yz. make: Yamaha. year: 1982–1983.

( Manufacturer Part Number: 98CM3 ), ( Part Type: Metric Cylinder ), ( Engine Type: 2-stroke )
Introducing the Yamaha YZ100, a legendary two-stroke dirt bike that graced the off-road scene in the 1980s. This particular model, manufactured in 1982 or 1983, features a 98cc engine, a testament to Yamaha's commitment to power and performance in mini-bikes.
The engine is a single-cylinder two-stroke powerhouse, with a bore and stroke measurement of 50.72mm x 1.997mm. The combination of these dimensions provides the engine with optimal power delivery, making it an exciting ride for both novice and experienced riders. The engine is coupled with a 5-speed transmission, offering a good balance between top-end speed and control.
The YZ100's frame is a lightweight, high-tensile steel design, which provides excellent handling and agility on the trails. The bike features a telescopic front fork and a swingarm rear suspension, ensuring a comfortable ride over various terrain types. The front suspension has 11.2 inches of travel, while the rear suspension offers 9.8 inches of travel, providing a smooth and controlled ride.
The bike's tires, 19 inches at the front and 16 inches at the rear, are designed for excellent off-road traction and durability. The front tire has a width of 2.15 inches, while the rear tire measures 2.10 inches. The wheels are equipped with aluminum rims, reducing unsprung weight for improved handling and performance.
The YZ100 also boasts a lightweight, high-strength aluminum alloy fuel tank with a capacity of 1.4 gallons. This tank, along with the bike's overall weight of just over 130 pounds, contributes to the bike's nimble and agile handling, making it a joy to ride.
In conclusion, the Yamaha YZ100 is a timeless classic in the world of off-road bikes. Its compact size, powerful engine, and lightweight construction make it an ideal choice for riders looking for an exciting and capable trail bike. Whether you're a seasoned veteran or a newcomer to the off-road scene, this bike is sure to provide hours of fun and adventure.
Pros of buying a 1982-1983 Yamaha YZ100 with a 50.72cc cylinder and a bore of 1.997 inches:1. Vintage charm: The YZ100 is a classic model that has been popular among motocross enthusiasts for decades. Owning one of these bikes can be a great way to connect with the history of the sport and show off your love for vintage machinery.
2. Reliability: These bikes were built to last, and many of them are still in good condition today. With proper maintenance, a well-maintained YZ100 can be a reliable and fun ride.
3. Affordability: Compared to newer models, classic motocross bikes like the YZ100 are often more affordable. This can make them a good option for those who are just starting out or who are on a budget.
4. Easy parts availability: Many parts for the YZ100 are still available, making it relatively easy to keep the bike running in good condition.
Cons of buying a 1982-1983 Yamaha YZ100 with a 50.72cc cylinder and a bore of 1.997 inches:1. Limited performance: Compared to modern motocross bikes, the YZ100 is significantly slower and less powerful. This can be a drawback for those who are looking for a high-performance ride.
2. Lack of modern features: The YZ100 does not have many of the features that are common in modern motocross bikes, such as electric starting, fuel injection, or adjustable suspension.
3. Some maintenance may be more difficult: Some maintenance tasks on the YZ100, such as carburetor tuning, may be more difficult than on modern bikes.
Conclusion: The 1982-1983 Yamaha YZ100 is a classic motocross bike that has many advantages, including its vintage charm, reliability, affordability, and easy parts availability. However, it also has some drawbacks, such as its limited performance and lack of modern features. Ultimately, whether or not the YZ100 is the right bike for you will depend on your specific needs and preferences. If you're looking for a fun, reliable, and affordable motocross bike with a bit of history, the YZ100 could be a great choice. But if you're looking for a high-performance ride with all the bells and whistles, you may want to consider a newer model.
Recommendation: If you are interested in buying a 1982-1983 Yamaha YZ100, I would recommend doing your research and ensuring that the bike is in good condition. Look for signs of wear and tear, such as rust or damaged components, and make sure that all necessary maintenance has been done. It may also be a good idea to join a local motocross club or forum to connect with other YZ100 owners and get advice on maintenance and upgrades. With proper care and maintenance, a well-maintained YZ100 can be a great ride for many years to come.
1982 Yz100 Cylinder. A fresh bore is recommended. Bore measures 50.72mm or 1.997 inches. Will need a hone to clean up sandblast over spray.
Lots of life left.