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Rejetting with kit

Rejetting with kit
Rejetting with kit
Yamaha YZ250F and WR250F -Picture Gallery

WR250F Airbox Snorkel Removal

WR250F Airbox Snorkel Removal
WR250F Airbox Snorkel Removal
Yamaha YZ250F and WR250F -Picture Gallery

WR250F_Stock_with_Grey_Wire.jpg

WR250F_Stock_with_Grey_Wire.jpg
WR250F_Stock_with_Grey_Wire.jpg
Yamaha YZ250F and WR250F -Picture Gallery

Accessing the carburetor needle on the WR250F

Accessing the carburetor needle on the WR250F
Accessing the carburetor needle on the WR250F
Yamaha YZ250F and WR250F -Picture Gallery

2016 YZ250F EFI Tuning Power on Dyno with Knobby Tire- More power would display with a street tire

2016 YZ250F EFI Tuning Power on Dyno with Knobby Tire- More power would display with a street tire
2016 YZ250F EFI Tuning Power on Dyno with Knobby Tire- More power would display with a street tire
Yamaha YZ250F and WR250F -Picture Gallery

Throttle marked for jetting tests at each throttle position

Throttle marked for jetting tests at each throttle position
Throttle marked for jetting tests at each throttle position
Yamaha YZ250F and WR250F -Picture Gallery

Aluminum Frame WR250F

Aluminum Frame WR250F
Aluminum Frame WR250F
Yamaha YZ250F and WR250F -Picture Gallery

Accelerator Pump Linkage

Accelerator Pump Linkage
Accelerator Pump Linkage
Yamaha YZ250F and WR250F -Picture Gallery

Leak Jet

Leak Jet
Leak Jet
Yamaha YZ250F and WR250F -Picture Gallery

WR250F

WR250F
WR250F
Yamaha YZ250F and WR250F -Picture Gallery

WR250F Airbox Modified

WR250F Airbox Modified
WR250F Airbox Modified
Yamaha YZ250F and WR250F -Picture Gallery

Throttle stop screws WR vs YZ

Throttle stop screws WR vs YZ
Throttle stop screws WR vs YZ
Yamaha YZ250F and WR250F -Picture Gallery

WR250F

WR250F
WR250F
Yamaha YZ250F and WR250F -Picture Gallery

WR250F Grey Wire Cut (in Red) and Uncut (in Blue)

WR250F Grey Wire Cut (in Red) and Uncut (in Blue)
WR250F Grey Wire Cut (in Red) and Uncut (in Blue) Low, Medium, and Full throttle tests with the throttle grip held steady. Notice how power tapers off with the Grey Wire connected.
Yamaha YZ250F and WR250F -Picture Gallery

Airbox Snorkel Removed

Airbox Snorkel Removed
Airbox Snorkel Removed
Yamaha YZ250F and WR250F -Picture Gallery

2006 YZ250F

2006 YZ250F
2006 YZ250F
Yamaha YZ250F and WR250F -Picture Gallery

WR250F

WR250F
WR250F
Yamaha YZ250F and WR250F -Picture Gallery

Street Tire Preferred for Dynamometer Runs

Street Tire Preferred for Dynamometer Runs
Street Tire Preferred for Dynamometer Runs
Yamaha YZ250F and WR250F -Picture Gallery

YZ250F Knobby Tire (add 6-8Hp for street tires)

YZ250F Knobby Tire (add 6-8Hp for street tires)
YZ250F Knobby Tire (add 6-8Hp for street tires) MULTIPLE DYNO RUNS HOLDING DIFFERENT THROTTLE POSITIONS- NOT MOVING THE THROTTLE, BUT HOLDING IT STEADY AS THE RPMS CLIMBED
Yamaha YZ250F and WR250F -Picture Gallery

Dynamometer with Air/Fuel exhaust analysis

Dynamometer with Air/Fuel exhaust analysis
Dynamometer with Air/Fuel exhaust analysis
Yamaha YZ250F and WR250F -Picture Gallery
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Address
1930 Carpenter RD SE
Lacey, WA 98503-2915
United States of America


Phone: 360-350-0557
Email: tech@jdjetting.com

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