Originally Posted By: dwendt44
I ran my old Lawn-Boy on 40:1 conventional oil. Little or no smoke. Never fouled a plug the whole time I had it.
Like 14 years.
As it should be. 2-cycles seem to have a reputation for being smelly and smoky, but in my experience the cause is usually user error. Too much oil in the gas. Assuming the engine/carb aren't worn out or out of tune, a proper oi/gas mix should make VERY little smoke if any at all, certainly nothing noticeable.
And for something like a smaller mower or trimmer, a 2-cycle is so much easier to work with for all the reasons mentioned above, its a real shame these things are going extinct. The eco-weenies strike again.