I just picked up a used 2002 crf450r last fall and was only able to run it around in the front yard once or twice last fall before winter hit.(Minnesota) It seemed to run fine and start well but it has been leaking coolant and engine oil all winter. Leak History: Over the winter I noticed a few new drops of clean oil on the floor each day and a few drops of fresh coolant on the floor (coolant drips were a few inches away from the oil drips) Last week I rode it around the yard for about 2 minutes and now it seems like the leak is worse (5 to 8" diameter puddle in 2 days) and the stuff hitting the floor now looks like pre-mixed (oil + antifreeze) I also smelled a bit of coolant in the exhaust the last time I started it. (I'm not running it again till I figure this out) What the heck am I dealing with here? Any ideas how bad this could be or how deep I'll need to dig to fix it? Thanks for any advice...I'm new to 4 strokes!