hard miss and popping at low speed

snappercutter

Forum Newbie
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Mar 25, 2020
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12.5 briggs on craftmans rider. runs good at full speed but has a miss at low speed. 10 year old motor but is basically new. mower looks brand new and was seldom used
 

bertsmobile1

Lawn Royalty
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Nov 29, 2014
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24,647
pull the blower housing off & check for nest debris.
If am interperting you properly it sounds very much like the inlet valve seat coming loose. .
 
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