;-) No harm no foul. It's entirely possible he buys bikes that I would dismiss out of hand because when they're that old, they're either (A) abandoned barn finds or (B) maintained by proud owners whose outsized sense of value over their possessions makes them utterly pointless to negotiate with. My general experience is that if it's old and shitty enough that you can get to the plugs easily, and it isn't being driven daily, the carbs are so full of schmutz and crud that the sucka will never run right. The optimal envelope for a slide-valve carb is so narrow that when you get it out of optimal even a tiny little bit you have a bad time - I improved the fuel economy of the KLR by 10MPG just by tightening the needle valve an eighth of a turn.