Cylinder Kit 70Cc Nk100.73.2Cylinder Kit V. 2 70cc sport for Kymco horizontal ACThe V. 2 cast iron cylinder kit from Naraku for all air cooled horizontal Kymco engines (SF10) is a high performance 70cc kit that wont sit down and beg The cylinder features 6 overflow ports and a large oval outlet port The kit can be used with the original head The cast iron construction means this cylinder is great value for money Due to the somewhat sharp timing, we recommend using a 17. 5mm