Step 1 - Remove the Exhaust Restrictor
1. Locate the exhaust restrictor, which is usually a small metal plate with a hole in it. It is typically located in the exhaust pipe, just below the exhaust header.
2. Remove the restrictor by drilling out the rivets or bolts that hold it in place. Be careful not to damage the exhaust pipe.
3. Once the restrictor is removed, reinstall the exhaust pipe.
Step 2 - Replace the Air Filter
1. Locate the air filter housing, which is usually located on the left side of the motorcycle, just below the fuel tank.
2. Remove the air filter housing cover and take out the old air filter.
3. Replace the old air filter with a new high-performance air filter.
4. Reinstall the air filter housing cover.
Step 3 - Modify the Carburetor
1. Locate the carburetor, which is usually located on the right side of the motorcycle, just below the fuel tank.
2. Remove the carburetor float bowl by unscrewing the bolts that hold it in place.
3. Once the float bowl is removed, you will see the main jet and the pilot jet.
4. Replace the main jet and pilot jet with larger ones. The size of the jets you need will depend on your specific motorcycle model.
5. Reinstall the float bowl and tighten the bolts.
Step 4 - Remove the Throttle Stop
1. Locate the throttle stop, which is a small metal screw located on the carburetor.
2. Remove the throttle stop by unscrewing it.
3. Reinstall the throttle stop without the screw.
Step 5 - Test Ride the Motorcycle
Once you have completed the above steps, test ride the motorcycle to make sure that it is running properly. You may need to make some adjustments to the carburetor settings to get the best performance.
Make sure to adjust the throttle cable, make sure the butterfly valves are not sticking and that the throttle opens all the way.
*Note: The process of derestricting a motorcycle can vary depending on the specific model. It is important to consult a professional mechanic or experienced motorcycle enthusiast if you are unsure about any of the steps involved. Additionally, derestricting a motorcycle may make it illegal to ride on public roads, so it is important to research the local regulations before making any modifications.*
