I just rebuilt my 2001 ZR 600 EFI top end. Now that everything is back in and running, it is very sluggish. Out of the hole it won't even spin the track on low snow conditions. It also maxes out about 65 mph and 7100 rpms. Anyone have any ideas? Did I screw something up? I did mix in a bit of oil into the gas tank to help lube during break in. Did this screw it up? Help me!