I am new to genset, so you knew about it more than me. But why did it run so well yesterday and not today? I will pull out the generator and replace parts. I have ordered a new fuel pump, sparkplug(which my mechanic said looked ok) So, after the 1st of Aug. Sorry for the long history-I assume I will have to take along a small (big for the Chinook storage) 2000 watt Honda generator (maybe) to keep the coach batteries charged –I need a CPAP for sleeping. Other than a low oil sensor-what might cause the engine to quit during the start attempt? Darn-thought I had solved the problem much to my dismay!! Why yesterday and not today? This morning I smugly pushed the start button and the engine sounded great as long as I held the button down-but died when I remove my finger. Now that I had all the dissembled parts-(yesterday) –I reassembled all parts removed –washing all contacts with carb cleaner (I also drained the carb after filling with carb cleaner 3 or 4 times) When I tried yestermorning-It STARTED and ran for 5 hours –quit-restarteed for another 3 hours till I turned it off. Checking the new oil level it is between add and full marks. With the gas line disconnected from the carb and pushing the start button we do get adequate gas flow. Disapointed –I had already cleaned the air filter(which was not bad), used about ¾ can of carburetor cleaner and filled the 40 gallon tank with non alcohol gasoline and added can of Sea Foam to the tank. So, I dove in and removed the obstructions-however the fuel pump is anchored in the back of the generator case is a very tight spot. I watched one Utube (among many) that said once I got the solenoid, fuel pump solenoid, base platform covering the motherboard, wires back out of way-one could reach back in this tight space and pull the fuel pump and filter forward as they were loose. This is a common problem with this generator-varnish carb, and or faulty fuel delivery. The problem is or was –it would start and sound good as long as the on switch was held. He is a good mechanic but busy-said he could not service till Aug. I had him look at the generator (Onan 4000 microlite) and he felt it was either a faulty fuel pump or a plugged fuel filter and it would require removing the generator to access all the parts. I took it to my mechanic for oil change and general over all exam. I have started it peroidly for short periods of time. Getting ready for the Yakima “dry camp” I was unable to get the Generator going.
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