Had one of my customers who put 37K on his M620 IN 11 MONTHS!
WTF? did the guy just keep riding back and forth across the country for fun? damn.. well at least you must have gotten something like 7 valve adjustments out of him.. did the guy set up the next valve adjustment just when you finished
"hey stu, i know you are now putting the gas tank back on but i'll need new tires and a valve adjustment in 3 weeks, see you then."