S p e c s: GP 150

1969 - 1971
amount produced: 20,048
engine: single cylinder, air cooled 2-stroke
induction: piston ported
bore: 57 mm
stroke: 58 mm
cubic capacity: 148 cc
compression ratio: 7.8: 1
bhp at rpm: 8.7 @ 6300
transmission: 4 speed constant mesh
primary drive: 46/15
1st gear: 15.33: 1
2nd gear: 10.71: 1
3rd gear: 7.97: 1
4th gear: 5.65: 1
lubrication: 2%

carburetor: Dell'Orto SH2/22

choke: 22 mm
slide:7895/2
atomizer: 5899/4
main jet: 118
starter jet: 50
pilot jet: 45
ignition: contact breaker & points
ignition timing: 21 deg. BTDC
breaker gap: 0.35-0.45 mm
spark plug: NGK - B7ES
spark plug gap: 0.45-0.5 mm
voltage: 6 volt
wheels: 10"
wheel hubs: cast
tires: 3.50 x 10
max speed: 63 mph
total dry weight: 260 lbs

click for gp150 electrical page
click for gp150 owner's manual