fits model: Zuma. make: Yamaha. year: 1997–1999.

( Manufacturer Part Number: 4SB-E1111-00-00 ), ( Type: Cylinder Head ), ( Machine Type: Scooter ), ( Manufacturer Warranty: No Warranty )
The Yamaha Zuma Scooter CW-50, specifically the 1997-1999 model with the 4SB-E1111-00-00 head cylinder, is a compact and agile two-wheel vehicle designed for urban commuting and casual rides. This scooter is a part of Yamaha's Zuma line, which has been renowned for its efficient performance, stylish design, and ease of use since its inception.
The 4SB-E1111-00-00 head cylinder is a crucial component of the Zuma Scooter's powertrain. This air-cooled, single-cylinder, 2-stroke engine produces approximately 5.3 horsepower at 6,500 RPM and 5.4 ft-lbs of torque at 5,000 RPM. The cylinder's bore and stroke dimensions are 39.2mm and 44.2mm, respectively, ensuring a good balance between power and fuel efficiency.
The head cylinder is designed with a reed valve intake system, which allows for a simple and effective way to control the airflow into the engine. This system, in combination with the 111mm Keihin carburetor, ensures a smooth and responsive power delivery. Moreover, the engine is equipped with an automatic decompression system, which simplifies the starting process and makes it easier for riders, especially those new to two-wheel vehicles.
Additionally, the head cylinder features a high-compression piston with a compression ratio of around 6.8:1. This high compression ratio contributes to the engine's power output while also requiring a suitable fuel mix to ensure optimal performance. The cylinder is also fitted with a transfer port, which aids in the efficient transfer of fuel from the carburetor to the combustion chamber.
The Zuma Scooter CW-50 is lightweight and nimble, with a curb weight of around 178 lbs (81 kg). Its compact dimensions, 67.7 inches (1715 mm) in length, 28.1 inches (713 mm) in width, and 42 inches (1067 mm) in height, make it an ideal choice for navigating through city streets and tight parking spaces. Furthermore, its fuel tank with a capacity of 1.1 gallons (4.2 liters) provides a decent range for short commutes and errands.
The Zuma Scooter CW-50's chassis is designed for stability and maneuverability. Its steel frame provides a solid foundation for the vehicle, while the front and rear suspension systems, consisting of a telescopic fork and a swingarm with a single shock absorber, respectively, ensure a comfortable ride and excellent handling. The scooter's wheels, 12 inches (305 mm) in diameter, are shod with tubeless tires that offer good grip and resistance to punctures.
In summary, the Yamaha Zuma Scooter CW-50 with the 4SB-E1111-00-00 head cylinder is a versatile, efficient, and fun two-wheel vehicle. Its powerful yet fuel-efficient engine, lightweight yet stable chassis, and user-friendly design make it an excellent choice for urban commuting and casual rides.
The Yamaha Zuma Scooter CW50 with a 1997-1999 4SB-E1111-00-00 head cylinder is an older model scooter that may still be a viable option for those looking for an affordable, reliable, and low-maintenance mode of transportation. Here are some pros and cons to consider before making a purchase:
Pros:1. Fuel Efficiency: Scooters, in general, are known for their excellent fuel economy. The Zuma CW50 is no exception. It has a fuel tank capacity of 1.1 gallons and can deliver up to 100 miles per gallon.
2. Low Emissions: This scooter is considered an environmentally-friendly option as it produces fewer emissions compared to cars and motorcycles.
3. Easy to Operate: Scooters are known for their simplicity and ease of use. The Zuma CW50 is no exception. It has a simple, automatic transmission, making it easy to ride, even for beginners.
4. Compact Size: The scooter's small size makes it easy to maneuver through city streets and park in tight spaces.
5. Affordable: Older models of scooters like the Zuma CW50 are generally more affordable than newer models.
Cons:1. Limited Speed: The Zuma CW50 has a top speed of around 30 mph, which may be limiting for some riders.
2. Limited Storage: The scooter has limited storage capacity, making it less suitable for long trips or carrying large items.
3. Limited Comfort: The scooter's seating position and lack of windshield may not provide the same level of comfort as larger motorcycles or cars.
4. Limited Safety Features: The scooter does not come with advanced safety features, such as ABS or traction control.
5. Older Model: Being an older model, the Zuma CW50 may require more frequent maintenance and repairs compared to newer models.
Ending Conclusion:The Yamaha Zuma Scooter CW50 with a 1997-1999 4SB-E1111-00-00 head cylinder is an affordable, fuel-efficient, and low-emission option for those looking for a simple and easy-to-use mode of transportation. However, it may not provide the same level of speed, storage capacity, comfort, safety features, or reliability as newer models. Ultimately, the decision to buy this scooter depends on individual preferences, needs, and budget.
Recommendation:If you are looking for an affordable, fuel-efficient, and easy-to-use mode of transportation for short city commutes, the Yamaha Zuma Scooter CW50 with a 1997-1999 4SB-E1111-00-00 head cylinder could be a good option for you. However, if you require more speed, storage capacity, comfort, safety features, or reliability, you may want to consider newer models or alternative modes of transportation. It's recommended to thoroughly inspect the scooter before making a purchase and budget for any potential maintenance or repair costs.
Used OEM Part Pulled from Yamaha scooter and shows visible signs dust scuffs rust of use HEAD CYLINDER 4SB-E1111-00-00 For 1997 1999 YAMAHA ZUMA SCOOTER CW50 See pictures for details.