well, the drain screws in the float bowls were facing the wrong way, and the o rings around the main jets and float valve bodies were all focced. So, he'd dropped the float bowls in situ, then forced the new jets etc in blind with no o ring grease, guillotining the outer edge off so bady it looks like it has two o rings in some cases. The carb kits he got were cheapies, so Im going to get new o rings and refit the original Keihin stuff...bike only has 11,000 on it so they should be fine