1. Install a performance exhaust system. This is one of the most effective ways to improve the performance of your XR 80. A performance exhaust system will help the engine breathe better and produce more power.
2. Replace the air filter with a high-flow air filter. This will allow the engine to breathe more air, which will also help to increase power.
3. Rejet the carburetor. Rejetting the carburetor is necessary when you make any modifications to the engine that affect its airflow, such as installing a performance exhaust system or air filter. Rejetting the carburetor will ensure that the engine is getting the proper amount of fuel.
4. Install a hotter spark plug. A hotter spark plug will help the engine to burn fuel more efficiently, which can also lead to increased power.
5. Advance the timing. Advancing the timing can also help to improve the performance of your XR 80. However, this is a more advanced modification and should only be done if you are familiar with engine mechanics.
6. Install a larger rear sprocket. A larger rear sprocket will give the bike more torque and acceleration, but it will also reduce top speed.
7. Remove the airbox lid. This will increase airflow to the engine, but it may also increase the amount of dirt and debris that gets into the engine.
8. Drill holes in the exhaust pipe. This will reduce back pressure and allow the engine to breathe better, but it may also make the bike louder.
