Use with both throttle conversion kit nos. 11-2638 and M97751. This item is required when converting from thumb throttles to twist throttles on Honda ATCs. Fits all Keihin PJ34 and 36mm carbs plus stock Keihin carbs found on ATC250R and TRX250R. Contains top, cable adjuster, adjuster cap, adjuster nut and gasket. Genuine Keihin Parts