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I have a coleman 5500 W generator with a 11HP Tecumseh OHM 90-110 engine. It starts up immediately, runs for 10 seconds, and quits. I have taken the carb apart and cleaned it, everything seems to be in working order, but doesn't help. It seems like it is getting enough fuel, I can smell it. Spark is fine. Any suggestions?

Posted by Anonymous on

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Check the oil level. there is a low oil cut off.

Posted on Nov 08, 2012

  • billgill3492
    billgill3492 Nov 08, 2012

    check the oil level. there is a low oil cut off.

  • awindsr71 Apr 17, 2013

    The main fuel intake seal, is swollen. This assuming that the float moves. Remove the bowl assembly and blow into the main fuel inlet with the bowl assembly above your head. If you can't blow air through the hole, with the bowl empty, then it is swollen and needs replacing. No air means no fuel gutting in fast enough.

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Posted on Jan 02, 2017

  • 151 Answers

SOURCE: Tecumseh model 100 engine 10hp on a coleman

check the fuel mixture settings i believe main screw is 1 3/4 turns from closed and the idle screw is set at 1 1/4 turns from closed. These settings are for non OHV models. also check that if you have a fuel filter installed that it is not plugged up.

Posted on Dec 24, 2009

  • 12 Answers

SOURCE: Spark but no fuel . coleman Powermate 6250

if it's flooding the float may have a tiny hole which makes it not float as well and too much fuel will stall the engine...If it's not getting enough fuel to keep running then its usually because of a small piece of dirt blocking a hole..under the carb there should be a brass bolt...take that off and check that the two side holes are clear...then check the center orifice and blow it out...there is also a tiny little hole up near where the threads start...use a wire from a wire brush to make sure its clean....also clean out the bowl and then reassemble...this works 90% of the time for me

Posted on Jul 02, 2010

  • 2006 Answers

SOURCE: Honda gx410 18 hp generator

Suggest you add either Heat fuel restorer (watch the amount you add) or almost pure alcohol to the fuel to get rid of any water in your system. Make sure the fuel filter is not blocked. Then pull the spark plug and spray one 1-2 second spray of WD-40 into the spark plug hole. Turn over 1-2 times, replace the spark plug - then try to start.

This has worked on my generators for years, and hope it works for you. But take a close look at all your hoses because even a small tear will give you problems.

Posted on Aug 26, 2011

kel1guy2002
  • 3740 Answers

SOURCE: Generator runs for about 10

It appears you have eliminated all of the fuel related issues. That would leave the generatoor safety circuits as a possible reason for the unit shutting down.

The Low Oil Level Sensor is the major reason that generators shut down when your sure there is not a fuel supply problem. Make sure the unit is fully servied with OIL. If the problem persists disconnect ONE wire from the low oil level sensor and see if the problem persists. If you still have the problem inspect the black or green wire from the Start run switch all the way to the Air shroud on the engine looking for signs of chaffing.
If you can not find anything then you will have to re-focus your attention on the fuel system once again. If you have a solenoid on the base of the carb.. the solenoid can be WEAK and stop remaining open once hot. This will cause the engine to lean out and die.
You should also check fuel flow to the carb. The flow should fill a spary paint can lid in under 10 seconds to the point your worried about it overflowing. Most honda engines have a metal sediment bowl under the fuel selector. Remove the sediment bowl and dump the contents. Check fuel flow again.
- Carb. With the float bowl removed fuel selector ON check fuel flow again by holding a spray paint can lid under the float. It must fill up in about 10 seconds to the point your worried about over-filling the lid. If you do not have a good flow rate here the float needle float needle rubber seat and the fuel manifold are the prime suspects.

I know this generator has the Honda GX270 engine. Some have solenoids (Item 49 this link)
http://www.boats.net/parts/search/Honda/Engine/0/GX270%20VPX5%20ENGINE,%20JPN,%20VIN%23%20GCAB-2000001%20TO%20GCAB-9999999/CARBURETOR%20(2)/parts.html
^- No details!

Honda engines by model and VIN can be found here:
http://www.boats.net/parts/search/Honda/Engine/0/parts.html

At this time I think the low oil level sensor (sending uint) may be the culprit causing your problem.
Item 2 this link:
http://www.boats.net/parts/search/Honda/Engine/0/GX270%20VPX5%20ENGINE%2C%20JPN%2C%20VIN%23%20GCAB-2000001%20TO%20GCAB-9999999/CYLINDER/parts.html

Thanks for choosing FixYa,
Kelly



Posted on Sep 16, 2011

stewbison
  • 577 Answers

SOURCE: I have a 5500 ppg

Hello, ushicks/me hillybilly. One question how old is the fuel in then generator tank,Hey. If it has a fuel filter replace it. Modern gasoline is junk fuel and after a few months it looses some chemical proprieties. GB...stewbison

Posted on Sep 29, 2011

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