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Some set ups and rod lengths may require a spacer under the spark plug or extra base gaskets for clearance as some used a shorter piston
Yamaha YF 60 S Quad (1987-1990)
To replace OEM: 58210-19D20 / 58210-19D10
Honda CB 1300 F3 Super Four (2003)
Suzuki GS 550 L (USA Style Custom) (1978-1982)
Big Bore Cylinder Barrel Kit: Aprilia RS50 RS 50 (2006-2010) Honda NV50 Some set ups and rodBrand new big bore cylinder barrel kit to fit: Aprilia RS 50 (2006 2010). This cylinder kit has been manufactured to upgrade the original top end on an Aprilia RS50 to 70cc for the years and models shown above. The kit includes the cylinder barrel jug, head, piston kit and gaskets. To upgrade D50B0 or D50B1 2 stroke engine from 50cc to 70cc. Chassis prefix: ZD4PL ZD4RG.
