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Petrol Briggs & stratton 3.5HP engine 'hunts'

How do i get my Petrol Briggs & stratton 3.5 HP engine to run smoothly, so that it doesnt ''hunt''. Have changed the air filter element for new, used new fuel & checked that the oil is topped up. It is secondhand from a friend.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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jj505
  • 195 Answers

SOURCE: Have a Briggs & Stratton lawn mower engine, 4.5

Is Blade new or causeing vibration .Chge blade,

Please rate Thank you jj505

Posted on Mar 30, 2009

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  • 41 Answers

SOURCE: Briggs & Stratton 4.5 hp running rough...too much fuel

Hi did you squeze excess oil from filter so it can **** air in??

Posted on Aug 04, 2009

  • 512 Answers

SOURCE: Briggs and Stratton 19.5 hp 42e707 Hunts and Surges

Are you sure you got all the passageways in the carb cleaned out?

How did it look when you first disassebled it? Full of rust and gunk or just shellac on the surfaces?

Take the fuel line off at the carb and MAKE SURE that fuel flows freely. I have seen trash get in the tank and plub the other end up. Does it have a vaccuum operated fuel pump?

Posted on Sep 10, 2009

heres2maine
  • 84 Answers

SOURCE: My flymo briggs & stratton quick silver 46d

Your carb needs to be taken apart and cleaned

Posted on Jul 10, 2010

  • 150 Answers

SOURCE: omega 42 petrol mower hunting then cuts out.

Check high speed adjustment on carb. Back it out (counterclockwise), if there is no adjustment screw the you may have to drop the carb bowl and clean, blow out jet with air

Posted on Oct 11, 2010

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