Briggs 19.0 HP single cylinder slight popping noise

[StarTech]

And can even be a bad exhaust camshaft lobe as I have seen a couple of those in the last year. Otherwords the exhaust valve may not be opening fully due to lack of lift.

 

[semimechanicman]

Turn the idle mixture screw out until it starts to run rich then in until it starts to falter then turn half way between the two. Adjusting it like you said could make it idle fast but still be too lean. If pulling the choke out a little at a time makes the popping go away you could try turning the idle mixture screw out a little at time and see if that makes it go away as well. Then bring it back to idle and see if it idles ok. Slight popping and surging is most often caused by a lean condition in the idle circuit.

Yes so today I was playing around with mixture screw and eventually I turned it to the point that it didn't make the noise anymore. Thanks

 

[StarTech]

Great you got lucky and thanks for the closer of the thread.

 

[STEVES]

hold idle at 500rpm, then adjust mixture screw till runs smooth

 

[Scrubcadet10]

I don't think they will idle that low.....

 

[STEVES]

correct!! that is 1300rpm holding throttle lever , thanks!