You might try to drain the gas from the Onan generator. I heard all the stories about having to run it once a month to keep it working and thought knew a better way. I waited till my 1999 B was low on gas, filled it with alcohol free gas and added Stab-Bil and drove the van long enough to get everything mixed good then ran my Onan for 30 minutes or so and shut it down till Spring. That was 4 years ago and I have never got it to run again. Since we didn't use it much anyway I decided to leave it dead rather than pay someone figure out why.