S p e c s: J125 Starstream

1966 - 1969
amount produced: 16,052
engine: single cylinder, air cooled 2-stroke
induction: piston ported
bore: 57 mm
stroke: 48 mm
cubic capacity: 122 cc
bhp at rpm: 5.8 @ 5300
compression ratio: 7.4: 1
transmission: 4 speed constant mesh
primary drive: 45/14
1st gear: 14.02: 1
2nd gear: 10.11: 1
3rd gear: 7.43: 1
4th gear: 5.75: 1
lubrication: 2%
carburetor: Dell'Orto SHB 18/16  
choke: 16 mm
slide: 6492/1
main jet: 72
starter jet: 50
pilot jet: 40
ignition: contact breaker & points
ignition timing: 24 degrees BTDC
breaker gap: 0.35-0.45 mm
voltage: 6 volt
wheels: 10"
tires: 3.00 x 10
max speed: 55 mph
total dry weight: 198 lbs

click for J125 Starstream electrical page