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GS150 MODELS

1955-1955 VS1

engine: single cylinder, air cooled 2-stroke

barrel: 2 transfer ports

induction: piston ported

bore: 57 mm

stroke: 57 mm

cubic capacity: 145.6 cc

bhp at rpm: 8 @ 7500

compression ratio: 6.7: 1

carburetor: Dell'Orto UB 23 S3

transmission: 4 speed constant mesh

 • 

1st gear: 14.72: 1

 •

2nd gear: 10.28: 1

 •

3rd gear: 7.61: 1

 •

4th gear: 5.84: 1

clutch: wet - multiplate

lubrication: 6%

carburetor: Dell'Orto UB 23 S3

main jet: 100

mixer: 2.60

needle position: 3

slow running jet: 45

ignition: contact breaker & coil

ignition timing: 31 degrees BTDC

breaker gap: 0.015 in

voltage: 6 volt

wheels: 10"

wheel hubs: pressed steel

tYre: 3.50 x 10

tYre pressure (front): 16 psi

tYre pressure (rear solo): 20 psi

 

1956-VS2

engine: single cylinder, air cooled 2-stroke

barrel: 2 transfer ports

induction: piston ported

bore: 57 mm

stroke: 57 mm

cubic capacity: 145.6 cc

bhp at rpm: 8 @ 7500

compression ratio: 6.7: 1

carburetor: Dell'Orto UB 23 S3

transmission: 4 speed constant mesh

 •

1st gear: 14.72: 1

 •

2nd gear: 10.28: 1

 •

3rd gear: 7.61: 1

 •

4th gear: 5.84: 1

clutch: wet - multiplate

lubrication: 6%

carburetor: Dell'Orto UB 23 S3

main jet: 103

mixer: 2.60

needle position: 3

slow running jet: 45

ignition: contact breaker & coil

ignition timing: 31 degrees BTDC

breaker gap: 0.4 mm

voltage: 6 volt

wheels: 10"
wheel hubs: pressed steel
tYre: 3.50 x 10
tYre pressure (front): 16 psi
tYre pressure (rear solo): 20 psi
 

1957-VS3

engine: single cylinder, air cooled 2-stroke

barrel: 2 transfer ports

induction: piston ported

bore: 57 mm

stroke: 57 mm

cubic capacity: 145.6 cc

bhp at rpm: 8 @ 7500

compression ratio: 6.7: 1

carburetor: Dell'Orto UB 23 S3

transmission: 4 speed constant mesh

 •  1st gear: 14.72: 1

 •  2nd gear: 10.28: 1

 •  3rd gear: 7.61: 1

 •  4th gear: 5.84: 1

clutch: wet - multiplate

lubrication: 6%

carburetor: Dell'Orto UB 23 S3

main jet: 103

mixer: 2.60

needle position: 3

slow running jet: 45

ignition: contact breaker & coil

ignition timing: 31 degrees BTDC

breaker gap: 0.4 mm

voltage: 6 volt

wheels: 10"

wheel hubs: pressed steel

tYre: 3.50 x 10

tYre pressure (front): 16 psi

tYre pressure (rear solo): 20 psi

 

1958-VS4

engine: single cylinder, air cooled 2-

stroke

barrel: 2 transfer ports

induction: piston ported

bore: 57 mm

stroke: 57 mm

cubic capacity: 145.6 cc

bhp at rpm: 8 @ 7000

compression ratio: 7.2: 1

transmission: 4 speed constant mesh

 •  1st gear: 14.72: 1

 •  2nd gear: 10.28: 1

 •  3rd gear: 7.61: 1

 •  4th gear: 5.84: 1

clutch: wet - multiplate

lubrication: 6%

carburetor: Dell'Orto UB 23 S3

main jet: 103

mixer: 2.60

needle position: 3

slow running jet: 50

ignition: contact breaker & coil

ignition timing: 31 degrees BTDC

breaker gap: 0.015 in

voltage: 6 volt

wheels: 10"

wheel hubs: pressed steel

tYres: 3.50 x 10

tYre pressure (front): 16 psi

tYre pressure (rear solo): 20 psi

 

1958-1961 VS5

engine: single cylinder, air cooled 2-stroke

barrel: 2 transfer ports

induction: piston ported

bore: 57 mm

stroke: 57 mm

cubic capacity: 145.6 cc

bhp at rpm: 8 @ 7000

compression ratio: 7.1: 1

transmission: 4 speed constant mesh

primary drive: 22/67

 •  1st gear: 14.72: 1

 •  2nd gear: 10.28: 1

 •  3rd gear: 7.61: 1

 •  4th gear: 5.84: 1

clutch: wet - multiplate

lubrication: 6%

carburetor: Dell'Orto UB 23 S3 I

main jet: 103

needle position: 3

mixer: 2.60

slow running jet: 50

ignition: contact breaker & coil

ignition timing: 27 degrees BTDC

breaker gap: 0.4 mm

voltage: 6 volt

max stator output: 6v - 35w

wheels: 10"

wheel hubs: cast w/cooling fins

tYres: 3.50 x 10

tYre pressure (front): 16 psi

tYre pressure (rear solo): 20 psi

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