Tunable leak jet circuit maximizes volume of fuel and duration of fuel spray for any condition. Investment cast and finished to precise tolerances. High volume vertical check valve located in the QS3 for precise, consistent fuel metering. Stops hesitation and bogging. Instant throttle response. Improved low end performance. Fits all Keihin FCR carbs. Simple bolt-on.
"I bought this for my 2008 honda crf250r, my bike had the worst bog ever and could hardly gap the throttle without it hesitating even while riding, so i took a chance and bought this product and WOW! Its a night and day difference no more bog whatsoever no matter how hard i gap the throttle, I knew it would help but never thought it would be this jurastic! If your looking for the fuel injection response look no further this is bolt on fuel injection!"