Was talking with a guy at work who also rides and when I brought up the 86 750 I bought that had 41k on it he couldn't believe I bought it. 'Way too many miles. The motor will be worn out". Every oiler I've had has had 30k plus put on them, with the exception of the 1100's I picked up. Never had an issue with any of them with the exception of jetting problems caused by previous owners thinking they are Erv Kanemoto. Other than that these have been bullet proof for me. But I also do the regular maintenance and generally take good care of them. A friend has another 86 750 that had clocked over 70k at last look. Still running strong and he's done nothing to it. So, back to my original question: how many miles are too much? What number would keep you from buying?