I have a 94 ZX9r B1. 9094 miles. Sitting still it runs great, idols great, revs up great. When I ride it down the road, it acts like it runs out of fuel. Then it dies. After several attempts of starting it, with choke on and off, it finally starts. Runs great, until I take off then acts like it runs out of fuel again. I can see that the fuel filter is full of fuel. It has a new fuel pump. Carbs recently synced. Any ideas???