Description Works Connection Fuel Mixture Screw Honda / Kawasaki / Suzuki / KTM / Yamaha Features: Allows no tool tuning to obtain crisp, clean, positive off idle throttle response Includes sealing O-ring, tension spring and washer CNC’d 7075 T-7 billet aluminum to precision tolerances EZ Dial knob with laser etched numerals O-ring design helps resist engine vibration to increase accuracy and longevity