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Only starts when flooded?

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Old 11-28-2003, 09:09:21 PM
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Default Only starts when flooded?

Recently restored 1.5HP Hercules E & only way to start it is to flood it. That is, fully choked until gas runs out of mixer then when it fires & black smoke comes out then open the choke. But if we open the choke too far it'll immediately die until fully choked again. Once it's hot we can cut back the choke a bit.

Any ideas on why this might be? Thanks in advance.


Gurley, Alabama
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Old 11-28-2003, 09:29:43 PM
Chip Watford
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Default Re: Only starts when flooded?

Mike, It sounds as if it's starving for gas and the only way it can pull enough gas to run is with the choke closed.Be sure the check valve is not stuck and that it also seals off to prevent gas from draining back to the tank.Check that the fuel pipe and line[and strainer if it still has one ] is not stopped up.Also be sure the intake valve spring has the correct tension and that the valve works freely.Hope this may be of some help.Chip
Old 11-28-2003, 10:16:46 PM
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Default Re: Only starts when flooded?

The check valve is definately free. But, the gas line has to be tightened pretty good to clamp the tube & may well be the issue.

Thanks for the advice.


Gurley, Alabama
Old 11-28-2003, 10:48:43 PM
Rich Martz
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Default Re: Only starts when flooded?

I've got the same problem with a 5 hp Economy. It will only run fully choked with gas dripping out of the carb. It runs all day but never gets hot. Is this normal for these engines? Thanks
Old 11-28-2003, 11:11:42 PM
Rick Strobel
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Default Re: Only starts when flooded?

Whether it drouls or not, can depend on the governed speed. Economy's are noted for this. Try running a little faster and see if it dries up some. RickinMt.
Old 11-29-2003, 09:52:13 PM
Glenn Karch
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Default Re: Only starts when flooded?

Hercules built hit and miss engines usually need to be choked until liquid gas is present in the mixer. If an engine is tuned and set to run at rated speed, generally no choking is needed after starting except sometimes to get the engine warmed up. When you slow them down, it is another matter and they aften need choking, blow black smoke and drool.


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