Great carburetor that we sell for the largest of the Moped big bore kits. Good for the Puch Gilardoni Kit, and the Derbi Metrakit 74cc Kit among others.
For tuning tips, check out Garage. The worlds largest moped tuning database. Here are the list of the top builds in garage using this jet. Use Garage as a guide to what jet you need.
If you are not sure which jet to use, try this handy jetting tool called AutoTuner.