No-Rev Limit Performance CDI for 90cc, 100cc, and 110cc 2-stroke Air-cooled Minarelli 1E50QMF engines. Note: The engine this CDI is used for is a replica of the Italian designed Minarelli Air- Cooled 90cc 2-stroke. It is found under model numbers such as 1PE50QMF, 1E50QMF, E50QMF and is one of the most widely used 90cc and 100cc 2-stroke motors in the world. Made popular by many European, American, Chinese, Japanese, Korean and Taiwanese Brands.