YZ / MX 400 2 Stroke Jet Kit

YZ 400 4 Stroke Jet Kit

YZ / MX 400 2 Stroke Jetting Kit Includes

• YZ / MX 400 Main Jets
• YZ / MX 400 Pilot Jet
• YZ / MX 400 Leak Block Jet  
  
• YZ / MX 400 Needle Adjusters        
• YZ / MX 400 Nylon Needle Spacers
• YZ / MX 400 Slide Spring Modification
• Drill Bits for
• Slide Hole Modification (optional)
• Idle Mixture Modification
• Intake Airbox Modification
• Exhaust Modification
• Tuning Tech
• Bike Specs
• Carb Schematic
• Carb Synchronizer Tool (how to build for $5)
• Step by step instructions with photos for ease of installation.
• Installation Support - If you need assistance we are there for you.

Please Select the Following Information

This is a Custom Designed Performance Jet Kit.
We give a 100% Satisfaction Guarantee Refund on each Kit. 
Fill out the information, and Engineering will design the kit per your specifications.