i have been looking into buying a jetski locally for awhile now and have finnaly found a nice deal on 2 jetskis for 2000$. My question is when i hopefully go look at them tomorrow afternoon what should i be looking for besides any rust or corosion that may indicate that these arent in good shape and or havent been taken care of? I dont know anything about them besides that they both run and one may need a new head gasket. Any tips?