Yamaha Dirt Bike Parts: Fuel and Air Intake Systems

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  • Yamaha GYTR Competition Kit ECU

    Yamaha GYTR Competition Kit ECU

    Anthony in CA

    It starts easily and runs much better now.

    This is a must have for the new Yamaha WR450F's. Starts much better and runs much stronger even with the factory tune it comes with out of the box and less stall prone. But to fully take advantage of this ECU you need to purchase the GYTR programmer as well to change the tune of the motor. I've been running the tune that came with the ECU and have been very pleased and have not yet purchased the programmer and not sure I will.

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  • Yamaha GYTR Power Tuner

    Yamaha GYTR Power Tuner

    ANDREW in CO

    GYTR Tuner

    Works great! Easy to use.

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  • Yamaha GYTR Power Tuner/Competition Kit ECU

    Yamaha GYTR Power Tuner/Competition Kit ECU

    ANDREW in CO

    GYTR Competition Tuner/ECU Kit

    Works great! Wow the change in performance is crazy good!

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  • Yamaha GYTR WR Air Induction System Removal Kit

    Yamaha GYTR WR Air Induction System Removal Kit

    Michael in TX

    This kit is pretty good

    I like that this kit has everything you need already in it. Needle, Jets, smog cap, etc. The instructions could use a little work, but it wasn't too hard to figure out. I would have liked hex head bolts for the block off plate. The inside allen bolt was hard to tighten down fully due to spacing and required me to move the right side radiator slightly. Changing anything in the carbs is a pain on this bike due to the frame. One thing to note, the main jet and pilot jet were rich for me here in Houston near sea level. Through research on several forums for WR450's, it's pretty common to use a 168 - 170 main and 48 pilot outside of the mountains. I'm currently at 168 / 48 with the needle and other jets from this kit and the bike runs great.

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  • Yamaha Quick Release Air Box Hardware Kit

    Yamaha Quick Release Air Box Hardware Kit

    AARON in NV

    worth the cost.

    I bought these because they were half the cost than at the local Yamaha store. Great to have if you lose one of these guys.

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  • Yamaha GYTR Air Induction System Removal Kit

    Yamaha GYTR Air Induction System Removal Kit

    Tyron in WA

    Easy to fit and does the job

    It's a nice simple kit that properly removes the AIS system. It's fits perfect and looks very neat.

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