My 20hp Briggs lawnmower hunts up and down and won't idle. It needs choke to keep running. It happened suddenly after I finished mowing one day. Is the carb shot?
KJ from Tulsa, OK
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Hi you might want to pull the float bowl of the bottom of the carb and spray with a choke and carb cleaner. Remove the jet in carb also clean then blow them out with your air hose. Replace with fresh gas and go mowing. Something else I ran into awhile back that was way different the gas cap on our mowers have a vent built into them I had one that was actually clogged causing it to run on choke only.I'd do the carb first tho and blow out the vent just because.
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I have a John Deere STX38 that won't stay running. It sat all winter long and when I go to start it, it will sometimes turn over, and other times I will turn the key, and nothing happens. Also, when I did have it running, it wanted to die right away. The longest we had it running was 2 minutes tops. While that was happening, it would make this "POP" noise from the engine. So it goes "vroom, vroom, POP, vroom vroom, POP". I need help please!
Brittany from Iowa
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