Hey guys, long story short. i just bought a 98 R1 but it has a 2000 R1 engine put in. the guy said he used the carbs off the 98 with the 2000. it sputters and lacks power mostly at midrange rpm but sometimes right down to 3000rpm. sometimes it's not there. any suggestions as to what it might be? i suspect the carbs. shouldn't they have to be set up or jetted or something?