Jan 16, 2016 · Removing the air jet is for the MX body of which most do not have CE or air cut off valve. To remove the CE, plug the port on the head and connect the 2 ports on the carb with a hose OR plug all 3 ports and change the 60 pilot air jet to a 100.

Apr 4, 2012 · Buy the kit with 3 main jets, 155, 158, 160, EMN needle, no pilot (you already have a 45), a 100 pilot air jet (to remove the coast enrichener (CE)). An extended fuel screw is a nice addition. The "O" ring mod does not apply to your carb. There is the "Eddie mod" to wire the linkage. You will have to check that out, I'm not sure what it involves.

KEIHIN & MIKUNI OEM PARTS ARE STARTING TO ARRIVE. CHECK WEBSITE FOR STOCK.

Jun 30, 2021 · I have installed the JD Jet Kit, Thumper Idle Adjustment Screw, and did the 3x3 mod on otherwise stock engine/gearing 05 DRZ 400s. I get 60 mpg +/- on the road. IMO the engine runs much smoother.

James Dean designed this jetting kit to outperform standard factory carburetor jetting. JDJetting kits improve throttle response throughout the RPM range via specially made multi-taper needles. In addition to the custom parts, this kit comes with instructions and charts, so you don’t need to be an expert to enjoy high-end performance boosts.

James Dean designed and perfected this jetting kit over years. The jet kit includes instructions and charts that carefully walk through the installation process and offer guidance to help get peak performance at all elevations and in all conditions.

Mar 25, 2025 · Details from JD Jetting Below JDJetting kits improve throttle response throughout the RPM range via specially made multi-taper needles. 2000-2024 SUZUKI DRZ400S/SM Kawasaki KLX400 SR JD Jetting Jet Kit.

Apr 1, 2010 · drz 400 s 2005. Sea Level - 2000ft. 3x3. JD Jet Kit. Keihntech fuel screw. Blue Needle 4th clip. 155 MJ. Performs very well.

Suzuki DRZ 400 Performance Carburetor Jet Kit Custom Designed to your Exact Specifications at time of order. Add Power and Performance.