- Weight: The Kawasaki 550 engine is lighter than the 650 engine, which can affect the balance and handling of the motorcycle.
- Power: The 550 engine produces less power than the 650 engine, which can result in a sluggish performance and reduced top speed.
- Reliability: The 550 engine may not be as reliable as the 650 engine, especially when used in a 650 hull, which can lead to more frequent breakdowns and maintenance issues.
- Compatibility: The 550 engine may not be compatible with the 650 hull in terms of mounting points, fuel injection system, and other components, which can require extensive modifications to make it fit.
- Cost: The cost of purchasing a 550 engine and making the necessary modifications to fit it into a 650 hull can be significant, and may not be worth the benefits gained.
In conclusion, it is generally recommended to use the original engine specified for the 650 hull to ensure the best performance, reliability, and overall satisfaction with the motorcycle.
