How do you increase performance 1987 Yamaha xt 350?

To increase the performance of a 1987 Yamaha XT 350, consider upgrading the exhaust system for improved airflow and sound. Rejetting the carburetor can optimize fuel delivery for better throttle response. Additionally, installing a high-performance air filter can enhance air intake efficiency. Regular maintenance, such as ensuring proper tire pressure and maintaining the chain, also contributes to overall performance.