My son's 2007 RM gearbox locked up while he was at track. Engine starts and runs fine - so long as clutch is in. Got it to move a little and locked up again - will not move even with clutch pulled in.

I have a manual and plan to begin taking it apart this week. If anyone has had a similar experience please let me know what the issue was. I have all the tools here to split case and pull it apart but if there is something easy I am missing it would save a bunch of time and effort.

Thanks for reading,