JD Jetting Jet Kit

With a jetting selection sampled from the most popular settings and well known riders from all over the world, the JD Jetting Jet Kit is designed to give you pro-level performance without having to be a carburetor expert.

This jet kit will deliver reliable fueling, but with the inclusion of multi-taper needles, you’ll also get adjustability for low and high altitudes. See the difference in performance you’ll get over stock with a JD Jetting Jet Kit.

Specs:
• Expert tuning setup without being an expert
• Improves throttle response with multi-taper needles
• Taken from the most popular riders and settings for MX and off road
• Exceeds performance of popular EMN, DTM, and other standard factory needle options
• Low and high altitude designed triple taper needles
• Main jets include spare needle clip
• Dyno tested for proven gains
• Developed and tested from sea level to 12000ft elevation

Fits the following models:

YAMAHA WR450F 2007 - 2009, 2011
YAMAHA YZ450F 2006 - 2009