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Your cart is empty.Dynojet carburetor jet kit can provide you with a simple and affordable solution to all your carburetion problems. Dynojet kits increase power and smoothness throughout the entire rev range, while maintaining optimum fuel economy. Dynojet stage 1 kits are fully adjustable to allow the use of a well designed aftermarket pipes and stock replacement air filters, stage 1 kits are designed to improve throttle response and driveability and in most cases power increases of approximately 5 percent throughout the entire power range can be achieved. Dynojet stage 2 kits are designed for applications where individual filters cannot be installed and for applications where airbox modification improves the engine's performance, in most cases power increases of approximately 8 percent can be achieved. Each Dynojet jet kit includes comprehensive instructions which show step-by-step installation and testing procedures to ensure a perfect setup every time. This is backed by free telephone and Internet support to Dynojet customers.
George
Reviewed in the United States on August 25, 2020
Highly recommend it. Installed in my 03 400ex and woow it has more power and feels great.
dezira young
Reviewed in the United States on August 16, 2020
works great
Jason
Reviewed in the United States on September 26, 2019
Quick delivery and simple easy plug-and-play installation. Blinking feature is a plus as well as the brightness so as to add whatever additional safety measures to your vehicle in today's environment of distracted driving.
Hugo Theriault
Reviewed in Canada on July 17, 2019
tres facile a ajuster le carburateur avec le jet avec les intructions je recommande
Customer
Reviewed in the United States on June 15, 2019
Worked great for my 400ex. Instructions a little vague but overall they got the job done right. Adjust air fuel screw exactly how they say and it runs perfect!
william
Reviewed in the United States on June 14, 2015
I have used these kits in the past and they are pretty good especially if you ride in different elevations and need to change lets out, but with this kit you need to be careful if you add a full pipe and velocity intake to your 400ex you need a 0.175 and the biggest jet this kit comes with is a 0.170 so it didn't really work for my application
Smokey Reynolds
Reviewed in the United States on March 25, 2014
Came with all the parts I needed to jet my carb correctly. Good power gains on my 400ex. Would definitely recommend this to anyone looking for some more power after an exhaust and air filter install.
Tim Tobin
Reviewed in the United States on April 21, 2014
Really good jet kit but be aware there is no pilot jet. Some kits come with one, but I just ended up buying one off of another site for $5. definitely notice the difference in stage 2 performance out on the dunes
Josh
Reviewed in the United States on May 23, 2012
Bought this for my 2012 TRX400X (even though this one is for the 92-08 400EX, its still the same exact jets). Install was very easy, instructions were pretty simple. Comes with way more jets than what you need, but covers everything for stage 1 and 2 and different altitudes. As far as performance increase, the 4 wheeler wasnt even broken in yet so im not sure how much power i got from just this. Plus i installed a new exhaust system at the same time. Definitely worth the money though.
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