I am fixing to split the cases on my 250 to change a gear shifter shaft and seal. I will be in need of a new shifter shaft and complete seal kit along with gaskets. I have the owners bible for this bike, but if there is anything in particular I should know that might help me out please let me know. Also, I am going to check the tolerances for the piston and jug (Harley talk, that is what I am most familier) any ideas on where to get a ring set is also appreciated.