66 2 (2)

1966

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•pm łyp*.

ENCINEERINC ADVANCES

1966 BSA 500cc and 650cc Twins incorporote many engin-eering advances designed for even better performance,Jn-creased ruggedness, and long-la$ting owner satisfaction. A partiaI list follows:

•    New roller bearing—drive side

•    New easier-action shift mechanism

•    New heavy-duty dutch

•    New larger intake valves

•    lmproved valve materiał

•    New 12 volt electrics—road models

•    New triple-insulated stators

•    New    gauze-type air cleaners

•    New    battery overflow tubo

•    New    dipstick in oil tank

• Morę clearance—center stand

•    Better overcenter action—kick stand

•    Better shock control—front fork

•    Gold Star racing brakes all twins

•    New sport tailight assembly

•    New    chrome plated headlight

•    New    electrical master switch

•    Fork    lock on all twins

•    Many other detail advances, plus all new single cylinder models—\see pages 7 & 8).

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