I have no KX engines, I have 3 steel frame Honda 500's, am building an 03 cr250 with a cr500 engine, and have 3 unassembled engines aswell.
I want to get into the KX world, need a few inital questions answered:
Is there major differences in the engines thru the years?
Are there parts all interchangeable?
I've seen warnings about cracked cylinders, are some worse than others?
Did trans ratio's change in different years?
Is there anything to stay away from, ex: magnesium cases?