burnt smell in x sometimes??

[steve420]

occasionaly i smell this burnt smell in the x when im going down the street. the heater works good so i dont think its the heater core. the trany and engin run great and the oil in crystal clear. what could it be.

[OffroadX]

Could be road crud on the exhaust, could be a funky batch of fuel, could be an exhaust leak somewhere, hard to say...