How perfectly should my Onan run?

Generator Jim wrote:
One thing for the future troubleshooting. The paper air filter can become oil soaked because the crankcase breather tube dumps into its intake airstream. If so, it will act like the choke is on and cause over fueling problems.

Thanks for posting! This is actually a really good tip. I noticed this was the case on our air filter when I first started going through the generator systems after we got our coach.

Over fueling could also explain why the plugs smelled like gas.

Confirm / deny?

(btw .. username checks out)