If you own a two-stroke and have a Mikuni carb jet kit, then you probably know the frustration of trying to tune it properly. Having it run crisp and sweet is nearly impossible without the proper jetting kit. These jet kits are the key to getting your bike running at its peak. These jet kits come with a new needle, float needle clip, and the right main and pilot jets.

They also include a set of James Dean proprietary needles, which are designed to improve throttle response throughout the entire rev range. The kits are dyno-tested and claimed to work from sea level all the way to 12,000 ft. The kits retail in the $85.00 range.

Mikuni Carb Jet Kit: Why It’s Essential for High-Performance Bikes

The dynojet kit comes with comprehensive instructions and detailed jetting charts that help to fine tune your motorcycle for maximum power and optimum fuel economy. Dynojet has dynojet centers all over the world to provide installation and tuning services to their customers.

These kits are specifically designed for Mikuni VM and TM carburetors (not the generic Chinese copies). They come with a full set of instructions to get your bike tuned. The instructions will show you how to adjust the needle for different riding conditions such as technical/trail versus racing/open desert. They also include a jetting chart that is specific to your altitude, temperature, and riding style.

The main jets are flow tested at the factory and are labeled for identification. Because of this, these jets cannot be returned or exchanged. This is to protect the customer from purchasing a jet that has been resized.