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dirt bike fuel and air intake systems
Displaying parts for your 1998 YAMAHA WR400F
Dirt Bike Fuel and Air Intake Systems
Increase your horsepower and open your motorcycle up to a higher performance level. We have intake parts to increase your machines throttle response and overall performance.
Latest Fuel and Air Intake Systems Reviews – You could win up to $500 for reviewing products!
Boyesen Rad Valve
John in CA
The best upgrade
I put this on my yz250 and when on the track I was blown away with the power and response. More low end and more over rev and crisp throttle response. I dropped the main jet one size to a 175 and pilot jet one size to a 48. It also has a pro circuit pipe...The bike feels like a whole new bike, jumps I had to click into 4th can be done easily in 3rd now with throttle to spair. If I could give it 10 stars I would.
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Helix Racing Products Fuel Line
Bradley in TN
Great fuel line
Bought just to have some replacement. have used some and it works great no complaints.
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V-Force 3 Reed Valve
Logan in KS
More Power, Easier
Super easy install, better airflow and performance on my 95 CR250 based on butt dyno readings.
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V-Force 3 Replacement Reeds
Bradley in TN
Great reeds
Great reeds. fit great. just a great overall product I will order over and over again
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Tusk Carburetor Vent Line
tom in VA
Tusk vent lines
really good product! dificult to get on but totally worth it in the end
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Tusk Fuel Mixture Screw
kurtis in IL
Solid product and investment.
Fits perfectly. Works as it should. Makes fine tuning the carb a breeze.
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