I'm removing the triple tree clamp from my yz400, but running into some troubles. Couple of questions: 1. What size bolt (metric) is the steering shaft nut that rests above handle crown? 2. Will a pipe wrench suffice for "ring nut wrench"? 3. I'd like to simply replace the handle crown (its the only piece broken) but I'm using a yz426 replacement triple tree clamp. Do I need to replace the whole triple clamp or would I be fine with the handle crown? Thanks in advance, if there has been a topic like this before, SORRY, I did search and couldn't find a whole lot of anything.