Modified 2006 Tohatsu 50D2.
boyesen reeds, exhaust mod, nakaru coils, lighting coils removed, flywheel ring gear removed, reed block opened, welded crank, 1mm off head, D1 exhaust, yamaha 70 carbs (130 jets), lots of porting on intake and exhaust ports, polished everything, opened up reed cage, mikuni fuel pump
Selection of propellers, all stainless:
15p SOLAS - worked and cupped
18p Mercury chopper - worked and cupped
18p Mercury Cleaver - stock
20p Mercury Cleaver - worked but not by me
Thread here - http://www.rib.net/forum/f50/my-thundercat-61912.html