Here's the thing. My KZ305 engine is blowing some smoke from the right side when the engine is hot, and after I come to a stop at a redlight or something like that. If I rev the engine it blows out a pretty decent cloud. I don't think it looks like oil smoke, it's not thick enough for me to tell. I think it's rich smoke. I thought maybe the carb slide on that side was sticking so I ripped the whole carb down (cleaned it up a little while I was in there) swapped the slides, and put it all back together, and it still does it. I also removed the spark plug wire and started it up to see if the smoke stopped, and the smoke still comes out just the same running on the opposite cylinder. All signs point to valve seats but I dont think it's oil smoke. It's not light blue smoke. The engine runs great, doesn't misfire at all, the plugs burn clean, I just dont know where to go from this point. The only other thing I can think of is to remove the pipes and fire it up and see if smoke comes directly from the cylinder, like maybe there is oil down the right side pipe that is burning off. I've only logged about 500 miles so far this year since it started smoking in the spring after I got it out this year.
