YFZ 450 R Jet Kit

YFZ 450 R Jet Kit
YFZ 450 R Jet Kit
YFZ 450 R Jetting Kit Includes
  • YFZ 450 R Main Jets 
  • YFZ 450 R Pilot Jet
  • YFZ 450 R Leak Block Jet                       
  • YFZ 450 R Needle Adjusters        
  • YFZ 450 R Nylon Needle Spacers
  • YFZ 450 R Accel Pump Modification
  • YFZ 450 R Slide Spring Modification
  • Drill Bits for
  • YFZ 450 R Slide Hole Modification (optional)
  • YFZ 450 R Idle Mixture Modification
  • YFZ 450 R Tuning Tech
  • YFZ 450 R 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

Stage 1-7
Air Filter Type
Exhaust Type
Altitude / Elevation Riding Range
Year, Make, & Exact Model
Other Mods, Brand of Exh/Int

    Please Include any more Information needed to Design your Jet Kit

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.