36mm 29cc 2-Bolt Bore Up Kit-38mm skirt big bore Engine 88in / 124mm Width: 1

88in / 124mm Width: 1

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36mm 29cc 2-Bolt Bore Up Kit-38mm skirt big bore Engine 88in / 124mm Width: 1Complete 36mm GP290 big bore kit from CY. Now featuring improved cylinder plating for increased durability. Includes 36mm cylinder, piston, piston ring, piston pin and two pin washers, circlips, cylinder gasket, two cylinder bolts, insulator gasket, and CMR7H spark plug. Increases displacement to 28. 5cc when used with a stock crankshaft with 28mm stroke. Increases engine power SUBSTANTIALLY estimated power output is 3. 5 HP! This high performance