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You will get items as picture showing.

Air/Fuel mixture screw adjuster with spring, o ring and washer

Features:

  • Replaces the stock fuel screw that is difficult to adjust.
  • Allows for no tools track or trail side tuning on your FCR carb
  • Clean, crisp throttle response
  • Easy grip knob with laser etched numbers for simple and accurate adjustments.
  • Features an O-ring design to resist engine vibration and increases accuracy amd longevity..
  • CNC machined from durable 6061-T6 aluminum.
  • Fits most Keihin FCR Carburetors.

One of the more difficult tasks with the modern 4-stroke motocross bike is making fine adjustments to the fuel screw. If your bike is making popping sounds or idling a little higher than normal, you might just need to adjust your fuel screw that is located under your float bowl of your carb. The problem is you can't reach this stock screw without loosening the carb boots and rotating the carb so you can get to it with a small screw driver. That is a heck of a lot to do just to make a small adjustment to this screw.

Make your life easier by replacing your stock few screw with this adjustable one so you can adjust it on the fly and make fine adjustments to it to cure your popping or high idle problem due to it being too lean.

Below fitment just for reference, you need to check the size on the picture before your purchase.

  • It will not fit 02 and older KTM 400 and 520 bikes.
  • Might fit other makes and models.
  • Refer to your service manual or contact your OEM dealer if you are unsure if this fits your application.

Compatible For

  • KTM 450 EXC Racing 2003-2007

  Note 

  • Despite every effort to provide accurate images of each product's colour, actual colours may vary slightly, due to different device screen settings, the lighting in the installation location, slight differences in product finishes over time and other factors. We will not accept responsibility for any colour differences that are not factory faults.
  • Parts compatibility given is a guide only. We are not liabel for misapplication. Please check compare with your old part for fitment to your bike or check with your mechanic before purchasing.
  • International customers: please be aware that your country's customs may charge you an import duty or tax on this item upon delivery. Please refer to your relevant authorities for more information. 
  • Payment is due within 7days
  • Paypal(oversea buyers please pay by paypal only)
  • Bank transfer or deposite
  • Bank cheque (ship upon receipt)
  • Money order (ship upon receipt)
  • No pick-up or Cash On Delivery.
  • Will received our payment details after your purchase
  • We offer regular, register, express postage.
    If you choose regular postage, we will not liable for missing or loss.(Please contact us for register&express postage, if you cant find them on ebay postage section)
  • Combine postage:
    Please check out after you finish all your purchases, then the ebay will work out the discount automatically. Once an order is paid for, ebay CANNOT combine it with another order.
  • International Buyers - Please Note:
    1.Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.
    2.Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.
  • You orders may be sent by separately if overweight or oversized.

* Our 30 Day Return Policy  

  • In case you purchased an item by mistake or changed your mind, it might not be too late for you to get a refund. Just go over the below details to check if you’re eligible for a refund.
  • If you wish to return an item, you should inform us within 30 days of receiving the item. At this time, all relevant returns information will be provided.
  • The item must be returned in its original re-saleable condition with all the tags and packaging (ready to be put back on the shelf) at the buyers cost.
  • To make sure the item is received in its original and re-saleable condition, it must be securely packed.
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  • A revised refund amount may be needed if the item has undergone damage in transit, or does not return as noted above.
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  • We will dispatch within 3 business days after receiving your payment. No delivery on weekends, public holidays, or after hours.
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On 05/01/2026 at 14:57:07 AEDT, seller added the following information:

Datacaciques