146cc Big Bore Piston & Mikuni VM26 Kit - 14mm Piston Pin Engines - TBW9070

146cc Big Bore Piston & Mikuni VM26 Kit - 14mm Piston Pin Engines Part Number: TBW9070 141cc (57mm) Bore Kit and Mikuni VM26 Carb/Kit for Chinese 120cc Engines with Big Valve Cylinder Heads (27/23mm or 30/23mm):- Aluminum cylinder with steel sleeve- High compression large dome 57mm piston with rings, 14mm pin, & clips- Head gasket kit- Genuine Mikuni VM26mm 606 Series Performance Carb (Not a cheap Chinese copy)- Intake Kit- Jet kit with 3 different sizes (Stock size is a #190 - Extra jets sizes of 155, 165 & 175)- Throttle Cable- Dual Layered Foam Air Filter This will make a very nice difference in performance over your stock setup. Additionally, it is a very quick and easy upgrade as it does not require case boring. We found the right level of compression for increased performance while also keeping reliability in mind.  The kit includes a steel sleeved aluminum cylinder, light weight high revving piston and a head gasket kit. For additional performance, this kit includes