I am looking to buy a used WB, its got a Kawi 15 HP with a 48" deck. I gave it a test run and I really liked the way it ran, not complaining with the performance but the engine did smoke a little. Now I would be getting this mower at a pretty good price but it would not be worth it if I would have to put a lot more money into it in the near future. What is your opinion. Does a little smoke signal that the end is near or will I still be able to get some good hours out of the machine. Any experiences or info would be a big help. Thanks.