Onan 4000 Generator Problem
Hey all, I recently posted that the Onan 4000 on my Fleetwood was roaming and would only stay running if I wedged the Governor open, but that is not the case. I went out today to check the adjustmen...
Forum Discussion
If you are able to keep it running by blocking the CHOKE OPEN then the choke is set too tight or ypu have a mechanical spring/lenkage problem. Just like cars of old you would need the choke to close more in colder weather than hot.
On the generator you will see an altitude setting screw. This does basically the same thing. Air is thinner at high altitudes.So you do not need the same amount of choke as at sea level.
Now you have have a problem with it either being set for the wrong altitude or
the spring/linkage that should allow the coke to open is stuck or something is broken. If the spring is broken then the air entering the carb will pull the choke closed and choke out the motor.
When ypu block it open, you are keeping the air entering the carb from pulling the choke closed.
On the generator you will see an altitude setting screw. This does basically the same thing. Air is thinner at high altitudes.So you do not need the same amount of choke as at sea level.
Now you have have a problem with it either being set for the wrong altitude or
the spring/linkage that should allow the coke to open is stuck or something is broken. If the spring is broken then the air entering the carb will pull the choke closed and choke out the motor.
When ypu block it open, you are keeping the air entering the carb from pulling the choke closed.
