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Universal Parts Complete 50mm QMB139 80cc Kit (151-269)
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In Stock: 31
SKU: 151-269
* Whole number only
Universal Parts Complete 50mm QMB139 80cc Kit
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Enter your email to be notified when back in stock Universal Parts Complete 50mm Big Bore Top End Kit for 50cc 4-stroke QMB139 engines. Upgrades to 81.3cc based on a stock stroke of 41.4mm! Includes cylinder, cylinder head, piston, pin, circlips, rings, head gasket, base gasket, camshaft, rocker arm shafts, rocker arms, cam holder, spark plug, intake studs, and exhaust studs. *You may need to modify your engine case to accommodate the larger cylinder. - Upgrades to 81.3cc!
- Includes Camshaft
- NGK Brand Spark Plug
- Bore: 50mm
- Cylinder Overall Height: 70mm
- Cylinder Sleeve Outer Diameter: 54mm
- Head Comes with 64mm Length Valves
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