How to check cdi box on atv

The CDI Box on an ATV is a crucial safety feature that many riders may overlook. This box contains the fuel injection system, which regulates the flow of fuel into the engine. However, if this box is not properly maintained or checked, it can cause serious problems and even accidents. In this article, we’ll show you how to check your ATV’s CDI box and why it’s essential for safe riding.

Firstly, let’s understand what the CDI box does on an ATV. The CDI box sends a spark to ignite the fuel in the engine. This spark is generated by the crankshaft, which rotates inside the box. If this spark is not strong enough or consistent, the engine may not run smoothly and could even seize up.

To check your ATV’s CDI box, you’ll need to follow these simple steps:

  1. Turn off the engine and let it cool down.
  2. Remove the cover on top of the CDI box by unscrewing it or pulling it away from the box.
  3. Use a multimeter to check the voltage output of the spark plugs inside the box. The voltage should be around 12-14 volts for most ATVs.
  4. Check the wires coming out of the CDI box to ensure they are free of corrosion and damage. Replace any damaged wires immediately.
  5. If you notice any sparking or arcing, this could indicate a problem with the CDI box. Take your ATV to a professional mechanic for diagnosis and repair.

Maintaining your ATV’s CDI box is crucial not only for safety but also for performance. A faulty CDI box can lead to poor fuel efficiency, decreased power output, and even permanent damage to the engine. By regularly checking and maintaining your ATV’s CDI box, you can ensure safe and enjoyable rides for years to come.

You May Also Like