I've had my '83 IT490 for over 20 years now, ride it regularly and still love it. I have experienced some of the problems others have pointed out (fowling plugs - which was solved by working with the jetting, difficult starting - just make sure the piston is at the top of the cylinder for a full kick) but other than that, it has been an incredibly reliable bike. I bought it at the time when I wanted the low-end torque of a 4-stroke but had a friendly family rivalry with Honda so couldn't buy one . This bike has taken me anywhere I've pointed the front tire! I'd love to have a new WR450 or KTM but for the $10K, I'll stick with Ol' Faithful til she dies.