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What would cause a Briggs & Stratton 6 HP to spit gas into the air filter?
I have a 2004 6hp B&S, horizontal shaft on a pressure washer. Under a load it runs fine, but as soon as you stop the spray it starts overloading and spits gas out of the carb. Never dies, but sounds like it wants to. After a few seconds it levels back out. I was gonna throw a kit in the carb, but it doesn't seem like a carb problem.
2 Answers
- Smokey da BearLv 69 years agoFavorite Answer
You are on the right path, but I think it's the needle and float that are giving you the problem. The float may have be keeping the needle open too long and while the engine is running full out to power the pump, it is able to use the extra fuel but once the load is off it starts spitting fuel because it is having trouble burning the excess. You can pick up an OEM carb for under $40 online, and it will have a factory set float height as well as being all new. Get the numbers off the side of the carb and search "OEM carburetor" rather than a generic carb: it's worth the few extra dollars.
- renpenLv 79 years ago
Sounds like you need to clean the carburetor. Probably should take a look into the fuel tank to make sure there is no water or dirt also. Might want to check your portable cans too. A good cleaning should solve the problem.
