The humor continues.
The OP likely does not have the finances to buy anything newer, thus why they signed up to this forum, just to ask a question on how to get their likely new to them antique RV, that they are intending to live full time within, to pass a smog test.
Seems highly unlikely he she/them are just fans of 1979 vintage RV's.
They likely have confused CO, with CO2, and have little to no ability to work on their own stuff, much less diagnose issues. Changing the Spark plugs and an oil change, could be the near limits of their abilities, and they came here hoping someone with lots of experience with that particular RV/ engine combo could point them in the least expensive direction so they could get that magic legal sticker/ paper, and worry instead, about all the other things that those with limited finances worry about.
But please elaborate more about your multiple antique vehicles and how great you are. I'm sure the OP, if they ever bother returning, is in complete awe.
