J50, Cento, J125, Starsteam
This category covers J50, J50 Delux, J50 Special, J100 (cento), J125 3 speed, and J125 4 speed (Starstream). These models featured quite a few mid run production changes, which can be found on our models guide page (link below)
50cc Facts
Production Dates - J50 October 1964 to Apr 1971
J50 De-luxe Jan 1968 - Oct 1970
J50 Special Apr 1970 - Apr 1971 Numbers Produced - 15,300 + 28,852 + 13,599
Petrol/Oil Ratio - 2%
Gearbox oil 600ml - ST90
Carburettor - SHB18/12
Timing - 20 - 22°
Production Dates - J50 October 1964 to Apr 1971
J50 De-luxe Jan 1968 - Oct 1970
J50 Special Apr 1970 - Apr 1971 Numbers Produced - 15,300 + 28,852 + 13,599
Petrol/Oil Ratio - 2%
Gearbox oil 600ml - ST90
Carburettor - SHB18/12
Timing - 20 - 22°
100cc Facts
Production Dates - Mar 1964 to Nov 1965
Numbers Produced - 17,642
Petrol/Oil Ratio - 2%
Gearbox oil 600ml - ST90
Carburettor - SHB18/16
Timing - 23-25°
Production Dates - Mar 1964 to Nov 1965
Numbers Produced - 17,642
Petrol/Oil Ratio - 2%
Gearbox oil 600ml - ST90
Carburettor - SHB18/16
Timing - 23-25°
125cc Facts
Production Dates - 3 speed Sept 1964 to Sept 1966
Starstream (4 speed) May 1966 - Apr 1969 Numbers Produced - 21,651 + 16,052
Petrol/Oil Ratio - 2%
Gearbox oil 600ml - ST90
Carburettor - SHB18/16
Timing - 23 - 25°
Production Dates - 3 speed Sept 1964 to Sept 1966
Starstream (4 speed) May 1966 - Apr 1969 Numbers Produced - 21,651 + 16,052
Petrol/Oil Ratio - 2%
Gearbox oil 600ml - ST90
Carburettor - SHB18/16
Timing - 23 - 25°
More detailed information can be found on our Models guide page
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