Blaster Adjustable CDI HPM/Nasty Fast Parts (88-02 1st gen).

This high quality replacement CDI is a direct replacement. These are made here in USA and have an intricate internal electrical board tucked inside the case.

• Remove the front hood plastic.
• Remove or relocate the TORS (Throttle Over Ride System) box, which is often recommended to be removed from the Blaster as it can cause issues.
• Plug the new CDI in and bolt it down using the supplied hardware. 

• Adjustments: The left switch makes coarse adjustments, and the right switch makes finer adjustments. Position 1 is all the way counterclockwise.
• Timing: Turning the switches clockwise advances the base timing while retarding the high RPM timing. Position 5 on the left switch and position 1 on the right switch will advance the base timing by 3.5 degrees.
• OEM Curve: The original equipment manufacturer (OEM) curve is at position 1 on both switches, which provides the least amount of base timing and the most advanced high RPM timing.
• Starting Point: A good starting point for tuning is position 3 on both switches.

• Stator Advance: Modifying and advancing the stator by 3-4 degrees is recommended.
• Caution: Too much timing can cause pinging (detonation) or overheating, so it’s important to listen to the motor. Advancing the stator by more than +6 degrees may cause kickback.
• Monitoring: Using a spark plug temperature sensor is advised for monitoring; around 320° F is ideal, while 380° F is considered hot.
• Water Resistance: The unit is water-resistant, but not waterproof. Avoid high-pressure water, especially around the adjustment switches.