I've got a 2010 bobcat 225 with the Robin/Subaru motor that I acquired with 70 hours on it a little while back. I've had it in my truck about a month. When I crank it the first time in the morning it runs good about 45 seconds then bogs down and dies blowing dark smoke. Its always about 15 -25 seconds after it idles down from start up. Then when I restart it acts flooded then goes ahead and starts and is fine all day. Sometimes it does it after lunch if I take a very long one. I'd appreciate any advice or help. It ain't keeping me from work but it is something I worry about. Thanks a lot!