HI Dave U I am doing my sons complete engine for his kx 65 2001 right now. You could take it out from out side but if shaft has groove in it you wont be able to clean it up with some fine grit sandpaper.Take right case off you first have to take off water pump impeller it wont come off unless you do so, then you you can get at it easily. While your in there take alook at clutch basket and clean out case good.When you put it back together put some grease on seal lips so the lips of seal dont burn or become hard from lack of lube good luck :ride: :nod: !