The other day I rode my 750 on my grass lawn, made too sharp a right turn and the sandy Florida soil gave way causing the bike to fall to the right. I picked up the bike and re-started the engine. The oil pressure light came on and would not turn off. I shut the engine off for fear of causing excess wear with no oil pressure. I took it to the dealer, they started it up and let it run at 1500 RPM for a few minutes, then the oil pressure light went out. The dealer said that when the bike went down the oil flowed to one side and caused an air bubble to form in the oil pressure line going to the sending unit. This caused the oil pressure sending unit to malfunction. The oil light was on but the engine was still getting oil pressure. It was not registering because of the air bubble. When the engine ran a while it finally caused the air bubble in the line to dissapate and the oil light went out. At first I was afraid I had an oil pump problem. Anyone out there have this same problem.