ITS A DIESEL TRACTOR KIOTI LB 2202 U CAN SMELL THE FUEL THE TRACTOR IS RATED @ 2800 RPMS I HAD THE INJECTORS AND PUMP REBUILT ALSO NEW RINGS ROD BEARINGS VALVE STEM SEALS BUT LIKE I SAID WHEN IT WARMS UP TO OPERATING TEMP IT CLEARS AND U ONLY HEAR A MIS OUT OF THE EXAST AND ALSO WHEN FIRST...