I got 2 honda 400exs i gota 01 02 one is stock other has pipe and jetted both burn oil yea i know hondas specaily burn em but both run perfect like perfect and it just will burn oil thro out the day but not terrable just wanna make sure its simi normal my one that is jetted and has exhaust makes a tikin noise not bad just maybe someone know wut it was but like i said it runs 100 percent perfect no smoke no nothing either of them..