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80cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #70001
80cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #7000180cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #7000180cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #7000180cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #7000180cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #7000180cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #70001
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CAT 70001 (?7000,1)

80cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #70001



$149.99


Specification

Description

Please carefully check your cylinder valve status BEFORE you place order. 70001 is for long valve 64mm version,(if you need 69mm version, please refer to the item NO.: 88806)

80 cc Big Bore Kit

This kit fits with most Chinese Scooters/Mopeds with 50cc, 60cc, 4-Stroke GY6/139QMB engines!!! This bore kit can rebuild your 50cc 60cc 70cc 80cc bike to 100cc. This will increase your powerband anywhere from 50-75% so be ready to go faster!!!

Included in this big bore set is:
• Cylinder Engine Head, (64mm valves)
• Cylinder (47mm ID)
• Piston (47mm OD)
• Wrist Pin
• Complete Gaskets Set
• Complete Ring Set
• Qmb139 Roller Weights,16*13
• Oil Pump (42.5mm bolt hole spacing)

Compatibility


The following additional models are compatible with this product :

 
50cc 4 Stroke Scooter

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STORENAME | 80cc Big Bore Kits 139QMB GY6 50cc Engine(64mm Valve) 139QMB 139QMA scooter moped parts #70001