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S p e c s: VBA1M Motorinduction: disc valve bore: 57 mm stroke: 57 mm cubic capacity: 145.5 cc compression ratio: 6.5: 1 bhp at rpm: 5.5 @ 5500 con rod length:unknown piston compression height: unknown piston type: deflector small end diameter:unknown big end diameter:unknown flywheel side bearing: 25x62x12 drive side bearing: 25x62x12 input shaft bearing: 12x40x12 output shaft bearing (flywheel side): Piaggio only rear wheel bearing: 20x47x14 flywheel side oil seal: 20x40x6 drive side oil seal: 20x62x6.5 rear hub oil seal: 37x27x7 Vespa VBA 150 Links: VBA1T overview VBA1T electrical page Engine Work |
Casings: The casings are similar to most 150cc large frame casings with small differences. Bearings: Most bearings are easy to come by with the exception being the Piaggio specific output shaft on the flywheel side. This bearing is located just inside the selector box and is shared with most other models (except the GS160 & SS180). Cranks: The same crank is shared on most 60s 150cc including the GL, GT, Sprint, VNB, and VBB. Standard barrel: The standard VBA barrel is a two port design with a deflector piston. This piston can be changed for a domed type from a later 150cc models but the head will also need to be replaced. Kits: Unfortunately there are not really any options for a two port 150cc motor. Ignition: The original 6V points system can be replaced with a 12V electronic ignition kit - the only makers of the kit are ScootRS in Vietnam.. Gearbox: The three speed VBA1M gearbox and the four speed VBB1M or VBB2M gearboxes are interchangeable. |
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