That safe start piece is not coming off. When I shredded my 904 motor a few years back that JB welded boss was one of the few bits still intact. Both the front balancer shaft and the starter gear bore were ripped out but the safe start was okay
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
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