YOU ARE BIDDING ON A USED COMPLETE REAR NEEDLE CARB SET UP THAT FITS LA 40-46 AND FP 35-40.USE THIS TO CONVERT YOUR FRONT NEEDLE TO REAR .   WILL FIT OTHER SIMILIAR ENGINES. .ALL CLEAN AND FREE AND COMPLETE. Check out my other items!Be sure to add me to your favorites list! ANY QUESTIONS??? 9542340863 Bob