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Nihilo Concepts fuel and air intake systems
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Latest Fuel and Air Intake Systems Reviews – You could win up to $500 for reviewing products!
Boyesen Rad Valve
Jim in CO
Increases Mid and upper RPM power!
I went with the RAD valve to wake up my 2023 X-Trainer, and it did! Gains in the mid and upper rpm were welcome, but you will loose a bit of torque off the bottom. I run a fatty pipe, and open air filter cage. The instructions recommend leaning out the main jet by two sizes (148). Riding fire-roads at 9000 ft., this was too much, lots of ring noise, corrected by going richer one size (152). These sizes are NOT based on stock MJ. Make sure to buy a "Safety Allen" socket to remove the stock manifold.
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Helix Racing Products Carburetor Vent Line
Josh in CO
Need more than 5'
5ft is not enough to do a FCR carb. For the same price, you can complete 2 FCR carbs from other manufacturers.
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Tusk Carburetor Vent Line
Theodore in MA
It Fits
It fits on the vent. It's a little larger O.D than others I've used. Not a problem.
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JD Jetting Jet Kit
CALVIN in MD
Save time and it works!
I first used a JD Jetting kit about 20 years ago. It comes with clear instructions and options to cover all environments. It keeps me from having to stock an assortment of jets and I do not have to tear apart the carb and body work multiple times making adjustments.
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Tusk Fuel Mixture Screw
Chance in FL
THIS IS A MUST HAVE!
Anyone whose tried adjusting this on a fcr carb, knows the struggle. This makes simple on the fly adjustments easy! Bought for my 2008 yz250f. Simply remove and replace. Your back on the track. The price point is great and the quality of tusk is amazing! I have purchased so many tusk products and I have yet to be let down but the quality and price!
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Pro X 99101-357 Series Keihin Hex Main Jet
matt in CA
10/10
Shipped fast. Great price. Easy install. Fixed my- running on choke only / bogging out issue.
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