ellsperman
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- Apr 28, 2015
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My B&S starts but runs ruff, won't run wide open, floods out, pinch off fuel line it will smooth out. When running at idle speed it surges.
LT300 Briggs & stratton 20hp runs ruff flooding out
- Thread starter ellsperman
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Boobala
Lawn Pro
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CLICK on the link BELOW
This may be of help if you plan to rebuild your carb. ...... you did'nt provide enough information as to model, etc. ......... Boobala :frown:
http://outdoorpowerinfo.com/repairs/#id_briggs
BriggsStratton
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Hello Ellsperman,
Surging can be caused by one of two things: Either a dirty carburetor or the governor needs to be adjusted. You can clean the carburetor. Here's a link on how to do that: Bitly.
If after you have cleaned the carburetor, the surging still persists, adjust the governor. Let us know how it works out!
When cleaning the carb, if you have to take it apart we recommend changing the gaskets because they may not seal the same again once they are opened up and this will cause a issue with how the engine runs. This would be the same for any gasket on the engine, if the part is opened we highly recommend the gaskets be changed out.
Surging can be caused by one of two things: Either a dirty carburetor or the governor needs to be adjusted. You can clean the carburetor. Here's a link on how to do that: Bitly.
If after you have cleaned the carburetor, the surging still persists, adjust the governor. Let us know how it works out!
When cleaning the carb, if you have to take it apart we recommend changing the gaskets because they may not seal the same again once they are opened up and this will cause a issue with how the engine runs. This would be the same for any gasket on the engine, if the part is opened we highly recommend the gaskets be changed out.
bertsmobile1
Lawn Royalty
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- Nov 29, 2014
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Sounds like a naff float valve.
I the mower does not have a fuel tap, put one in there $ 5 well spent.
Remove the float bowl and turn on the fuel ( reason for the tap )
The fuel should sut off when the float is level with the base of the carb.
If not then it will be a carb clean or a replacement of the float valve and needle or adjustment of the float or any variation / combination of the previous.
I the mower does not have a fuel tap, put one in there $ 5 well spent.
Remove the float bowl and turn on the fuel ( reason for the tap )
The fuel should sut off when the float is level with the base of the carb.
If not then it will be a carb clean or a replacement of the float valve and needle or adjustment of the float or any variation / combination of the previous.