Howdy all, I run a couple of Kohler Command Pro 15 HPs on my WBs, I am used to them using a little oil, but I have one that burns a ton of oil, over half a quart per day. It seems to really smoke when first started and when shut off. Any ideas as to why it might be burning so much oil, or how difficult/expensive it would be to fix? The motor is only 2.5 yrs old, I usually get a lot of life out of these. Thanks for any ideas/suggestions.