Partsfor389/45 for B.S.A A10 Golden Flash Twin 646cc O.H.V.

Carb / Carb Set : 389/45| B.S.A| A10 Golden Flash Twin| 646cc O.H.V.| 389 Monobloc| 1960 to 1961 | Needle Position: 3| Internal Bore: 1 1/8in|