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Old 09-12-2022, 06:34 PM   #1
glennaeichmann
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Generator problems.

Hello. I have a 5500 Onan, It wont start. It has gas and a good battery. If I spray starting fluid in it it will run as long as I keep spraying into the carb. So I know it has gas and spark.... I took the carb off and took it apart and it is clean and the orifices are clear. Air cleaner is good, both fuel filters are good I don't see anything wrong. Now.... If I prime it for about a minute it will run for a second. I pulled the fuel hose off the carb and turned it over and I do have gas coming out of the hose... Any Ideas
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Old 09-12-2022, 06:55 PM   #2
chuckster57
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Sounds like the carb to me. Could be the fuel pump, but I’m leaning towards the carb.
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Old 09-13-2022, 05:20 AM   #3
jasin1
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Quote:
Originally Posted by glennaeichmann View Post
Hello. I have a 5500 Onan, It wont start. It has gas and a good battery. If I spray starting fluid in it it will run as long as I keep spraying into the carb. So I know it has gas and spark.... I took the carb off and took it apart and it is clean and the orifices are clear. Air cleaner is good, both fuel filters are good I don't see anything wrong. Now.... If I prime it for about a minute it will run for a second. I pulled the fuel hose off the carb and turned it over and I do have gas coming out of the hose... Any Ideas
does it have a bowl mounted fuel cutoff solenoid? if so it may be bad or have a wiring issue for the solenoid…i have a riding mower that used to cutoff intermittently and the solenoid wire was chafed and shorting to the engine case.
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Old 09-13-2022, 09:00 AM   #4
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I’d be pricing a new carb. Assuming you are running ethanol gas in it, do you run it dry after use? Are you using a fuel stabilizer?
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