Briggs Intek, replaced everything, still surging.. Ideas?

mcspeed

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  • / Briggs Intek, replaced everything, still surging.. Ideas?
I had a surging issue and went thru just about everything mentioned in this thread. Cleaning the carb didn’t work so I bought a new OE B&S carb which didn’t fix it. While installing the carb I noticed the plastic Intake manifold was warped and wouldn’t seal. Replaced it and problem solved.
 

slomo

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  • / Briggs Intek, replaced everything, still surging.. Ideas?
I had a surging issue and went thru just about everything mentioned in this thread. Cleaning the carb didn’t work so I bought a new OE B&S carb which didn’t fix it. While installing the carb I noticed the plastic Intake manifold was warped and wouldn’t seal. Replaced it and problem solved.
Next time test what you have prior to ordering parts.

As in place the choke on partially and see how she runs. Surging is typically a fuel thirsty condition. Or spray some juice into the carb throat and see if she levels out.
 

slomo

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  • / Briggs Intek, replaced everything, still surging.. Ideas?
The valves need to be taken out and cleaned. The surging is the intake valve not closing all the way. Im also guessing that the exhaust valve is carboned right up and its not closing all the way either, hence the back fire.
That is part of de-carbonizing the cylinder/s in your engine manual. Download you manual and read it cover to cover.
 
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