THIS IS A 2004 HONDA CRF 150F OEM ENGINE IN GOOD SHAPE FOR THE YEAR. ALL HAS NORMAL WEAR AND TEAR MARKS AS SEEN AND ALSO THE SHIFTER HAS BEEN WELDED TO SHAFT AS SEEN. THIS WAS REMOVED FROM A GREAT RUNNING BIKE THAT DID NOT MAKE ANY ABNORMAL NOISES, AND IT DID NOT SMOKE, SEE VIDEO.