Vespa 90 SS Super Sprint V9SS1T Specs

1965 – 1971

engine: single cylinder, air cooled 2-stroke

induction: disc valve

bore: 47 mm

stroke: 51 mm

cubic capacity: 88.5 cc

compression ration: 8.7: 1

bhp at rpm: 5.1 @ 5750

transmission: 4 speed constant mesh

primary drive: 24 clutch – 61 input shaft

1st gear: 14.74: 1

2nd gear: 9.80: 1

3rd gear: 7.06: 1

4th gear: 5.31: 1

clutch: wet – multiplate

lubrication:2%

carburetor: Dell’Orto SHB 16/16

main jet: 82

slow running jet: 38

throttle: No 2

starter jet: 50

ignition: contact breaker & coil

ignition timing: 19 deg. BTDC

breaker gap: 0.3 – 0.5 mm

max stator plate output: 6v – 30w

wheels: 10″

wheel hubs: cast w/cooling fins

tires: 3.00 x 10

Please check out the VIN decoder HERE if you have any questions about the year

Any comments Contact Me