I have a buddy that's looking at an s3t converted to an s3. I don't know the difference my self but he said the owner told him that it had a new motor, it was carbed it has 26,000. What's the difference between the s3t and the s3? What are the most common mechanical breakdowns for the motor, frame, ect, ect. The owner of the bike says it in good condition and is asking $2000. Any info would be greatly appreciated.