Started er up this evening. Turned around to back up and noticed a sizeable cloud of smoke off the rear end. This is the second time I've seen this. I saw a cloud last summer and kept watching for it a few weeks after that but never have seen it, again, until tonight.

As the weather has been rainy and cool, this past week, I hadn't started er up for about 3 days and then I started it last night to back er out of the garage so I could have some room. In about 30 minutes, I started er up again and moved it back. Then tonight, it was a nice evening and I thought I'd take a spin and that's when I noticed the cloud.

It doesn't use any oil and I've never seen any smoke except twice on a start up. Anyone have any thoughts?