2023-03-05 00:00:00 This app provides, using temperature, altitude, humidity, atmospheric pressure and your engine configuration, a recommendation about optimal carburetor config (jetting) for karts with Modena OK & OK-Junior engines (ME-K and ME-KJ models) which use a Tillotson diaphragm carburetors Valid for the following Modena engine models: • ME-KJ (Tillotson HC-114a, HC-116a, HW-43a, HW-43-CNC carburetor)