QuestionI have had a similar experience as what I reasearched out from this website and I did remove the gas cap and that didn't help. The same symptoms are what I am having with no load on the generator. I have used this generator approximately 100 hours total from 2004 was when I first used this generator. I always run the gas out before storing this generator. I've replaced the spark plug, gas filter and still the same symptoms below.
See below what a previous person symptoms were that I found on your website.
The text above is a follow-up to ...
-----Question-----
I have a NEW 1999 Campbell Hausfield Generator with an 11 HP B/S Gen Duty engine. The Engine is a 257400. It was just taken out of the box for the first time yesterday for an extended outage (2006). It ran fine for 30 minutes (surged a little) then sputtered and died. I restarted, it ran for 10-15 minutes and did the same. I was able to keep it running for a few moments by choking it but it finally sputtered and died. I restarted after it cooled and it ran for 20 more minutes and did the same. I repeated for the day until I was totally frustrated. I tried adjusting the A/F mixture and all else but could not get it to run continuously. My adjustments did eliminate all surging and it runs great for the 20 min and then stalls. I checked the float and it is working properly. The fuel filter is spotless, I disconnected the low oil and it made no difference. I installed an additional fan to cool it and it still dies. Looking at the carb when it dies, gas seems to pour into it when the governor tries to keep it running and it is stalling due to flooding.
I am considering ordering a new Carb? Any suggestions I should try first?
Thanks in advance!
-----Answer-----
Hello Norm:
Does the Generator Have Spark when it Quits? Is the Gas Cap Venting the Tank Properly? If No Spark, then the Coil/Igniter/Ignition Module is Bad. From your Description it Sounds like the Cap or the Coil/Module/Igniter. If the Cap isn't Venting the Tank, a Vacuum Builds inside the Tank and the Gas Can't Free Flow to the Carburetor. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
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Answer
Hello Norm:
Is this Generator Running Under a Load Constantly when this is Happening? If it is, then Check the Valve Lash. If the Engine is Running under a Constant Load for 15 to 20 Minutes, the Valve Lash May Require Adjusting. Check the Compression as Soon as the Engine Quits. If the Compression is Lower than 70psi, then the Valves are the Problem. The Carburetor is the Last thing that will Cause this Type of Problem. More Fuel with Lower Compression Makes One Think the Carburetor. This is Seldom the Case. It Wont hurt to do the Compression Test before the Carburetor Either. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
AnswerIt wouldn't hurt to check the valve but I'd suspect ignition or carburtor. Do you have an inline spark tester to watch the spark?
Link to spark tester:
http://tewarehouse.com/19368 or
http://tewarehouse.com/7-05950
Did you remove the engine shroud and check to see if any critters made a home inside the engine? We see this a lot in equipment that is stored.
Eric
