Description: Upgrade your 50cc scooter to reach higher speeds and improved acceleration with Pitmoto's Big Bore Kit - 50mm/100cc. This comprehensive kit includes everything you need for a seamless installation, including the A9 Cam and Rocker Arms assembly. No more guessing games with valve measurements, as we have thoughtfully included the rocker arms assembly to ensure compatibility.The cylinder has a 50mm bore, giving you 100cc of power. The intake valve diameter is 23mm, and the exhaust valve diameter is 20mm. With fast shipping and hassle-free returns, Pitmoto is the brand you can trust for high-quality scooter upgrades.Please note that this kit is not recommended for inexperienced installers and should be installed by an experienced scooter or motorcycle mechanic. The valves will require adjusting, and the timing must be set correctly. Failure to correctly set the timing can result in catastrophic engine damage. Fits the 50cc 139QMB engine. Kit includes: Cylinder 50mmPiston, rings, pin and clips Head with larger valves (Intake Valve Diameter 23mm / Exhaust Valve Diameter 20mm)HP Cam A9Gaskets and HardwareSpecifications:Cylinder Bore: 50mm / 100ccIntake Valve Diameter 23mmExhaust Valve Diameter 20mmValve Length: 69mmPiston: 50mm / 100ccPiston Pin: 13mmBolt Hole Spacing: 50mm (center to center)Cam Bearings: 16002/P6 (32mm diameter)Cam Sprocket: 34 tooth Note: This kit is NOT recommended for inexperienced installers. It is highly recommended that an experienced scooter or motorcycle mechanic installs it. The valves will require adjusting and the timing must be properly set. Important Parts Notice: Not all replacement or upgrade parts come with instructions. It is the customer's responsibility to have common knowledge of the installation or hire an experienced installer. We are not responsible for any damage that may be caused by any of the items we sell, whether installed by you or a professional. We are not required to provide step-by-step instructions or technical support. In any case, we will always do our best to help you with any technical question you may have. Important Notes Address Change RequestAn address change request will never be accepted. Please make sure you choose the correct shipping address before completing your order. If you need to change your address you will have to cancel the original order and place a new order with the correct shipping address. International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.For more information regarding international shipping fees and eBay terms please click here
Price: 69.99 USD
Location: Miami, Florida
End Time: 2023-11-17T05:06:29.000Z
Shipping Cost: 0 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Brand: Pitmoto
Manufacturer Part Number: QMBHK302397
