I have recently purchased a 1997 Yamaha Timberwolf 250 4x2. It starts the first time when pulled. It has oil on the end of the tail pipe and smokes a light gray-blueish in color smoke. Any suggestions on where to start. I might mention that it has been sitting for awhile. I did change the oil and filter due the oil was very black. This seems to me to have slowed the smoking down slightly. Any help would be appreciated. [img]i/expressions/face-icon-small-sad.gif[/img][img]i/expressions/face-icon-small-confused.gif[/img][img]i/expressions/face-icon-small-sad.gif[/img]