Briggs Pre-Filter

lefty2cox

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Briggs: 407777-3195-G5

I just got a new air filter for this engine and it came with a pre-filter. The original did not have one. Do I use it or will it screw with the mixture?

Thanks.
 

cpurvis

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I'd use it. I have two mowers with pre-filters (foam wrappers) and they do a pretty good job of catching big stuff. Don't forget to clean it every now and then (or per manufacturer's recommendation).

It won't mess with the mixture; they're pretty coarse and non-restrictive.
 

7394

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Neighbor has a 23 hp Briggs that has the green pre-filter on it stock. But he doesn't do much cleaning on it.
 

7394

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Cpurvis- I think they should come that way with the 2 stage filter set-up.

Best mod I did on mine to date.
 

Ranamow

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Briggs: 407777-3195-G5

I just got a new air filter for this engine and it came with a pre-filter. The original did not have one. Do I use it or will it screw with the mixture?

Thanks.
Not all new filters come with pre-filters. Definitely use it!
 

mechanic mark

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Absolutely, I wash pre-filter with a small amount of dishwashing liquid & water hose, rinse thoroughly & squeeze dry. I inspect cartridge filter by holding up to sunlight looking from inside of filter outward after tapping filter against a solid surface to remove dirt etc.
 
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