Found a barn find Wards by Gilson 5hp with a 2 speed. I need to replace the carb tires cables seat & chains. I am going to paint it & label is as a Clone Allis Chalmers to have with our Tractor club at events. I'm wondering what to look for with the 2 speed gearing. I know it uses 2 clutches & a 1 way sprocket. Would I have trouble if I were to disassemble these for cleaning?