A buddy of mine has a 2012 Honda 250. I have been helping him fix it since he submerged it in water. We changed oil about 8 times and changed gas, cleaned air filter and the works. That being said we have it running great but it smokes from the time you start it untill you cut it off. It blows more smoke as you give it gas. The smoke is a white grey color and smells like oil. Theres even a little oil coming out of exaust. I did compression check and it was 215. I would think rings were good. I was thinking valve seats. I wanted some advice before tearing head off. Any help is greatly appreciated.