Busa Turning Off


I am posting for a friend that is having a problem. He has an 00 Busa and If he turns it on and rides, then when he turns it off, it does not start again.

The other problem is that if it is on and he is on the highway going about 55, the Busa turns off on him.

Any ideas?
My buddy has a 2000 and was having the same problem. We were at a bike night and his would just crank, he replaced the spark plugs and it started right up. Keep in mind however he was running shorty pipes with no PC. He did tell me a few days later he had to replace the fuel pump.