Don't get the wrong impression from the YS, usually a 170 rarely needs adjustment, and it is usually done only once if needed, also, the needle valve is almost always in the same position, you can change field and no touch it at all, it is one of the most maintenance free engine available in my opinion.

But yes, gas is cheaper, and has it's advantages, even though is not written, I know that a lot of people is hoping a good gas engine will come out soon.

Regards