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Product Details

Dynojet Stage 1 Jet Kit Yamaha YZ250F

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.

Features:

  • 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

Includes:

  • 1 Main Jet CJ155
  • 1 Main Jet CJ160
  • 1 Main Jet CJ165
  • 1 Main Jet CJ170
  • 1 Main Jet CJ175
  • 1 Fuel Needle DNO987
  • 1 Pilot Jet DPJM048
  • 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.

Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style Dynojet Stage 1 Jet Kit Yamaha YZ250F 2008-2009 RevZilla Item #1211775 Store Sku MFR. Product #4132 AvailabilityOnly 1 Left: Ships within 24 hours
This product is vehicle specific.
Select a vehicle to ensure fitment.
This Product Fits
Yamaha
YZ250F 2008, 2009
This item is also available for 19 different vehicles. View All Models
Honda
CRF150R 2012-2026
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CRF230F 2006-2017
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CRF250X 2005-2006
CRF450X 2005-2015
XR650L 1993-2025
XR650R 2000-2007
Kawasaki
KLX110 2010-2020
KLX110L 2010-2020
KLX110R 2021-2026
KLX110R L 2021-2025
KLX140 2016-2020
KLX140G 2017-2020
KLX140L 2016-2020
KLX140R 2022-2023
KLX140R F 2022-2023
KLX140R L 2022-2023
Yamaha
YZ426F 2000-2002

Dynojet Stage 1 Jet Kit Yamaha YZ250F 2008-2009 Instructions

Product Description
Part Numbers
Fitment
Instructions
8 Customer Reviews for All Models
8 4.5/5
2 Questions & 1 Answers for All Models
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