So My 2001 r1 is acting funny it's running okay no difference in power anything the other day I was racing my brother on the highway I just got done fixing the clutch the clutch works fine. But getting off the highway I heard a loud knock kind of a little whining too it's mostly at idle when the bike is under load it goes away my number for exhaust is not getting hot I could touch it when the bike is running and hold my hand there.. I don't get burnt. the bike's apart right now I checked the valves they're all too spec. . I can't think of any other symptoms it's having please help.