ADJUSTER AIR SCREW KEIHIN FCR Fuel mixture screw Blue

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Part No. 18-002.MI.BE Application: CRF/CRX 150/250/450 - YZF/WRF 250/426/450 & YFZ Quad - KXF250/450/KLX450R - RM250Z/450Z - KTM 250/450/525 03-08 Fuel mixture screw Blue, incl spr ing and seals A must for all four strokes using the Keihin FCR carb. To get the best throttle response from your engine you must properly adjust the low speed fuel mixture screw. Due to the difficulty of adjusting the stock screw. Mino has designed a billet extended fuel mixture screw that can be adjusted by hand. Manufactured to the exact tolerances of the stock screw with a built in thumb wheel for easy adjustments. Show more