Brigs and Stratton husquavarna motor surging

Tommydou41

Forum Newbie
Joined
May 16, 2023
Threads
1
Messages
1
Mower carb surging. Cleaned carb. New fuel filter. Does when at idle and full
Speed. Where to look next? Have video but won’t let me post. Thanks
 

bertsmobile1

Lawn Royalty
Joined
Nov 29, 2014
Threads
64
Messages
24,647
Did you actually clean the carb according to the instructins on Outdoor Power Equipment carb page ?
If you really did then remove blower housing and check that the carb is done up tight then start mower and saturate the entire manifold area , including the throttle butterfly shaft with WD 40 or similar .
Work the throttle governor shaft with your finger .
Watch exhaust and listen if you see white smoke or hear abnormal engine noises then you have an air leak
one in 10,000,000 will be a different cause but most are insufficient fuel supply or air entering after the main jet .
 
Top