Dwayne, is that 2 stroke or 4 stroke?
First I’d think the smoke was from build up in cylinders had excess unturned fuel build up from bad plugs and it was burning that out.
Then I would think maybe with not being there that water temp might be playing a part in lack of mist. With Luke warm water at pee tube tells me motor is not getting warm which can also contribute to more smoke. Think I would consider changing thermostats. Hotter motor gets more water is going to come out exhaust. I bet your fuel economy has gone down some also. Motor running cold will cause fondled plugs also. Hope this helps some and makes some kind of sense.