1968 - 1978

ENGINE: SINGLE CYLINDER, AIR COOLED 2-STROKE

BARREL: 3 TRANSFER PORTS

INDUCTION: DISC VALVE

BORE: 52.5 MM

STROKE: 57 MM

CUBIC CAPACITY: 123.4 CC

BHP @ RPM: 7.8 @ 5000

LUBRICATION:2%

TRANSMISSION: 4 SPEED CONSTANT MESH

PRIMARY DRIVE: 19 CLUTCH - 67 INPUT SHAFT

• 1ST GEAR: 15.46: 1
• 2ND GEAR: 10.79: 1
• 3RD GEAR: 7.69: 1
• 4TH GEAR: 5.49: 1

CLUTCH: WET - MULTIPLATE

IGNITION: CONTACT BREAKER & COIL

IGNITION TIMING: 22 DEG. BTDC

BREAKER GAP: 0.3 - 0.5 MM

VOLTAGE: 6 VOLT

MAX STATOR OUTPUT: 6V - 50W

SPARK PLUG: NGK B7-8 HS

1965 - 1979

ENGINE: SINGLE CYLINDER, AIR COOLED 2-STROKE

BARREL: 2 TRANSFER PORTS

INDUCTION: DISC VALVE

BORE: 57 MM

STROKE: 57 MM

CUBIC CAPACITY: 145.5 CC

COMPRESSION RATION: 6.5: 1

BHP AT RPM: 5.5 @ 5000

LUBRICATION:2%

TRANSMISSION: 4 SPEED CONSTANT MESH

PRIMARY DRIVE: 22 CLUTCH - 67 INPUT SHAFT

PRIMARY DRIVE: 22/67

• 1ST GEAR: 13.35: 1
• 2ND GEAR: 9.32: 1
• 3RD GEAR: 6.64: 1
• 4TH GEAR: 4.73: 1

CLUTCH: WET - MULTIPLATE

CARBURETOR: DELL'ORTO SI 20/15D

MAIN JET: 88

SLOW RUNNING JET: 42

DIFFUSER: E1

MAIN AIR BLEED: 160

STARTER JET: 60

IGNITION: CONTACT BREAKER & COIL

IGNITION TIMING: 22 DEG. BTDC

BREAKER GAP: 0.3 - 0.5 MM

VOLTAGE: 6 VOLT

MAX STATOR OUTPUT: 6V - 50W