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Dynojet Stage 1 Jet Kit Honda CRF450R 2003
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Dynojet Stage 1 Jet Kit Honda CRF450R

Stage 1 Dynojet kits were designed to maximize carburetor performance and are intended for unmodified or mildly tuned engines using the stock airbox, air filter and stock pipe or a quality high-flow aftermarket pipe. The main benefits of the Stage 1 Jet Kit are improved throttle response, smooth power transfer and in most cases power increases of approximately 5% throughout the entire power range are achieved.


  • Intended for stock or mildly tuned engines using the stock airbox, air filter and stock or quality high-flow aftermarket exhaust
  • Designed to maximize carburetor performance
  • Improves throttle response and power transfer
  • Power increases of approximately 5% can be achieved
  • Includes detailed installation instructions


  • 1 Main Jet DJ134
  • 1 Main Jet DJ136
  • 1 Main Jet DJ138
  • 1 Main Jet DJ140
  • 1 Main Jet DJ142
  • 1 Main Jet DJ144
  • 1 Main Jet DJ146
  • 1 Main Jet DJ148
  • 1 Main Jet DJ150
  • 1 Fuel Needle DNO982
  • 1 E-Clip DE0001
  • 1 Adjusting Washer DW0001
  • 1 Main Jet Adapter DJA001

Note: Images are for reference only, actual kits will vary per make and model.


This Product Fits:
CRF450R 2003
Product Style RevZilla Item # Manufacturer Product # Availability
Dynojet Stage 1 Jet Kit Honda CRF450R 2003 1211598 1103 Out of Stock


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