I am trying to get a good start on my rebuild/repair process on my '93 Cr250 engine. Here s what I have found so far, Metal bronze looking shavings near crank, mostly the crank is seized but will move with force (seems to get stuck at bottom of stroke). Do you guys think this crank is rebuildable? Or should I go with a new crank set-up? Old bike owner said the engine just stopped when riding the dunes. How do i post pics???????????? No Links??