Unlock the power of your triumph street triple 660: how to derestrict in minutes

Are you ready to unleash the full potential of your Triumph Street Triple 660? Derestricting this thrilling machine is a straightforward process that can significantly enhance its performance and rideability. In this comprehensive guide, we’ll walk you through every step of the derestriction process, providing clear instructions and expert tips to ensure a successful outcome.

Understanding the Restrictions

Triumph motorcycles are often restricted from the factory to comply with various regulations and emission standards. These restrictions typically limit the engine’s power output and top speed. By derestricting your Street Triple 660, you can remove these limitations and unlock its true potential.

Tools and Materials Required

Before you begin, gather the following tools and materials:

• Torx T30 wrench
• 10mm socket wrench
• 12mm socket wrench
• 14mm socket wrench
• Flathead screwdriver
• Exhaust removal tool (optional)

Step-by-Step Derestriction Instructions

1. Remove the Seat and Fuel Tank

Start by removing the seat and fuel tank. The seat is held in place by two Torx T30 bolts. Once the seat is removed, disconnect the fuel line and electrical connector from the fuel tank. Lift the tank off the bike.

2. Locate the Throttle Stop Screw

With the fuel tank removed, you’ll see the throttle bodies. Look for a small black screw located on the side of the throttle bodies. This is the throttle stop screw.

3. Adjust the Throttle Stop Screw

Using a flathead screwdriver, carefully loosen the throttle stop screw. Turn the screw counterclockwise until it stops. This will allow the throttle bodies to open fully.

4. Remove the Exhaust Restrictor

The next step is to remove the exhaust restrictor. This restrictor is located inside the exhaust system. To remove it, you’ll need to use an exhaust removal tool or a 14mm socket wrench.

5. Reinstall the Exhaust

Once the restrictor is removed, reinstall the exhaust system. Tighten the bolts securely.

6. Reconnect the Fuel Tank and Seat

Reconnect the fuel line and electrical connector to the fuel tank. Lower the tank back onto the bike and secure it with the bolts. Reinstall the seat.

7. Reset the ECU

After derestricting your Street Triple 660, it’s essential to reset the ECU. This will allow the bike to adapt to the new settings. To reset the ECU, simply disconnect the negative battery terminal for a few minutes and then reconnect it.

Benefits of Derestriction

• Increased Power: Derestricting your Street Triple 660 will result in a noticeable increase in power and torque.
• Improved Throttle Response: The throttle will become more responsive and precise.
• Higher Top Speed: Removing the speed limiter will allow your bike to reach its full potential top speed.
• Enhanced Rideability: The improved performance will make your Street Triple 660 more enjoyable and exciting to ride.

Considerations and Warnings

• Warranty: Derestricting your bike may void the manufacturer’s warranty.
• Emissions: Removing the exhaust restrictor will increase the emissions of your bike.
• Legal: It’s important to check local laws and regulations before derestricting your motorcycle.
• Safety: Always wear appropriate safety gear when riding.

Frequently Asked Questions

Q1: Will derestricting my Street Triple 660 damage the engine?

A: No, derestricting will not damage the engine if done correctly. However, it’s important to ensure that the bike is properly tuned after derestriction.

Q2: Can I derestrict my bike myself?

A: Yes, it is possible to derestrict your bike yourself. However, it’s recommended to have some mechanical experience before attempting this procedure.

Q3: What are the drawbacks of derestricting my Street Triple 660?

A: The main drawbacks are potential warranty voiding, increased emissions, and the need for proper tuning.