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Vintage Vespas with 10" rims Vespa P/PX scooters Genuine Stella 150 (2T
has an adjustable strap
Compatibility: 125/150 GY6 engines (see NOTE above)
does not include cylinder head
Cylinder Head & Valve Assembly; CSC go., 139QMB Scooters phbg Vintage Vespas with 10" rimsThis assembled PAIR style cylinder head fits CSC go, go MAX and Pug scooters and bikes running 50cc 4 stroke 139QMB engines. Pulsed Secondary Air Injection System (PAIR) is an emissions control system used to lower hydrocarbon (HC) and carbon monoxide (CO) emissions by allowing air into the exhaust flow. Original Parts For Scooters SKU 151 240 Specifications: Intake Port Diameter: 17mm Exhaust Port Diameter: 17mm Valve Length: 69mm Emission Control
