Big bore kits, Pocket bike performance and upgrade parts, 47cc, 49cc, 50cc, 2-stroke.

"I have owned 5 different scooters over the years. 250cc CFMOTO, Roketa 150cc 4-stroke GY6, United Motors 50cc 2-stroke and a SunL 50cc 4-stroke QMB139. I can rest assured that no matter what make or model I have, Partsforscooters.com will always have the parts I need. You have a customer for life!"
Mike R.-California

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Head kits for 2-stroke 43, 47 and 49cc pocket bikes, scooters, mini choppers, small dirt bikes and atvs will give engines big power gains for higher performance. It is best to install a head kit when you have other performance parts. You need an after market intake and exhaust to handle the extra power.

NGK BM7A Spark Plug

Part number: 145-1

NGK BM7A spark plug for various makes and models.

NGK CMR7H Spark Plug

Part number: 145-4

NGK CMR7H Spark plug for various makes and models.

47cc and 49cc 2-Stroke Performance Cylinder Kit

Part number: 107-67

Complete 44mm Cylinder Kit for the 47cc / 49cc Reed induction engine. This engine comes on Cag and Daytona Pocket Bikes, Pocket Quads and Small Dirt Bikes. Please choose your Piston Pin Size from the option below.