1998 Onan MicroLite 4000 Weak SPARK
I have a 1998 Onan MicroLite 4000 Model No: 4.0 KY-FA/26100H that wont start. She turns over, a little hesitant to turn over but does. It has spark but it is very weak, I believe so weak the fuel p...
Forum Discussion
heebeha wrote:
I have to keep it throttled to start it and keep it throttled for a while till the automatic throttle control kicks in. It seems to do a fair job at keeping her at idle until you either manually touch the throttle arm or try put her under load.
I did not realize the generator used the truck battery verse my campers deep cycle battery to start it.
Now we have a different story from the original "won't start".
But all of the stories point to a carb problem (way too lean or choke not working) and my Onan dealer replaced my carb for about the same price as a removal and cleaning which doesn't always work. Highly recommended.
And as for the batteries: The gen starts off of the house batteries BUT when the truck is running a solenoid closes to connect both sets together.
My guess is that you need a new carb on the gen AND you have a bad connection from the house batteries to the gen OR the house batteries are getting old and weak......or are not being charged properly.
