I have a 98 cbr 900rr bike and it recently started running rough about 1/2 way through my 20 min ride to work. It has done this several times now. I replaced the plugs last night hoping to fix the problem, but it did it again this morning and on the way home. It starts out just fine, however around 10mins of riding, it feels short on power, sputtering through the exhaust and just running rough. It definately sounds rough however it does feel like it still has decent power when I hit it. Any suggestions? More history, I bought the bike this year wrecked. Repaired it and rode it without any issue until now.