The 68cc cylinder kit for 1PE40QMB Minarelli Yamaha Jog Style Scooter Engines is made by NCY This cast iron, 2-ring kit is Ideal for bikes intended for more regular use Description The 68cc cylinder kit for 1PE40QMB Minarelli Yamaha Jog Style Scooter Engines is made by NCY. This cast iron, 2-ring kit is Ideal for bikes intended for more regular use. The NCY 47mm cast iron Jog/Minarelli 2-stroke cylinder is without the head, so you need to reuse your stock head. This is a simple bolt on 68cc kit for Minarelli based, air cooled, 2-stroke scooters with a 10mm wrist pin. Don’t forget that with every 2-stroke cylinder kit upgrade, it may be necessary to put a tablespoon or so of two stroke oil in your gas tank with every fill up. We recommend Ipone oils for all of NCY’s big bore kits. Both 1400-1005, City Oil 2 and OIL-IPCITY, Scoot City Strawberry Synthetic are great options. Also, don’t forget when putting a larger cylinder on your scooter, to up-jet your carburetor. We recommend starting your jetting rich and then working your way down to the perfect mix. The kit includes: AC iron cylinder 47 mm bore (68cc with stock stroke) Five transfer ports 10 mm wrist pin Two compression rings Open exhaust port Let Monster Scooter Parts be your source for NCY scooter parts and accessories.