This a reproduction Honda Z50 K3-78 type carburetor that is very close to the original and works great! It also comes with a throttle cable, new OEM type carb top (so it works on these models), and 3 different main jets to fine tune if needed (the stock main jet is typically the best for most Z50s but if you are in a higher elevation, have a performance exhaust, or some other modification, you may need to adjust). Finally, if you purchase from us, we will warranty this carb for one year as we are very confident in the quality and performance!