It's the same style crankshaft as most single cylinder two-strokes, so maybe look for someone that does them? The factory FT manual only lists specs for inspection of run-out, con-rod side clearance, and radial clearance on the big end, with nothing about the rebuilding process. I can scan those pages and post them if that will help. BTW, they seem to be a fairly rugged bottom end, and will survive a lot of abuse.