Question about Briggs & Stratton Briggs Stratton Lawnmower Lawn Mower Short Block

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16hp briggs & stratton mod. 303777 type 1145-A1 over4750 code 95101011,,worked on by "good" mechanic. replaced carb (orig. carb from B&S) problem hard to start-when it starts it missed, back

AFTER THE MAN REPLACED CARB. HE WAS ABLE TO MOW IN A HAY FIELD SEEMINGLY WITHOUT ANY PROBLEM. WHEN I PICKED IT UP 3 DAYS LATER, TOOK A LONG TIME TO START. MISSING AND BACKFIRING AND SPUTTERING. WILL NOT IDLE AT A LOW SPEED.

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

freetek
  • 5568 Answers

SOURCE: briggs & stratton with idle problem

This is not unusual at idle; there is a governor to limit maximum RPMs and this device isn't worth beans at an idle.
You may be able to carefully adjust the idle adjustment (see your manual or B&S website) to achieve a somewhat more even idle speed.

Posted on Aug 20, 2009

SOURCE: Briggs and stratton 4.5 hp ( 10G902 ) starts great

Try draining the carb and gas tank into a small plastic bowl and look for water in the fuel. I you have a diaphragm type carb it might just need a new diaphragm and spring.

Did the stumble start right after refueling? If so then your gas can may be carrying some water too. It happens. I have seen gas can with INCHES of water in the bottom! True story. I went to a customers house after she had both her walk behind and rider stop running. She said both were fine until she refueled and then...no start. I looked at her gas can and it was terrible!

If you are trying to clear the main jet you need to get inside the carb and clean from the fuel inlet side. Bowl carbs usually have removeable jets that you can look through.

Good luck and be careful!

Posted on Jul 13, 2010

2strokeJim
  • 577 Answers

SOURCE: i can not get my

pull carb apart and check float,,sounds like it is stuck shut

Posted on Jul 13, 2011

jlgprop
  • 352 Answers

SOURCE: briggs and stratton 6.75hp motor lawn mower had to start??

I WOULD GO THRU THE CARB, CLEANING, AND REPLACE NEEDLE, SEAT, FLOAT, AND ANY GASKETS. A REBUILD KIT FOR MOST BRIGGS AND STRATTON RUNS $10 TO $20 DOLLARS.
** USE A LOT OF SPRAY CARB CLEANER ON ORIFICES AND JETS

Posted on Jul 30, 2012

  • 22 Answers

SOURCE: briggs & stratton with idle problem

FIXED! - 5 minute repair! I had rough idle and sometimes black smoke occasionally coming out exhaust. I discovered the Carburettor Diaphragm had moved out of place.

To repair it, I removed fuel tank (2 bolts), and had access to 5 screws that hold the carburettor to the fuel tank. I removed those, which then allow you to see the condition of your diaphragm and gasket. I also cleaned a little dirt from float bay(?) and petrol line screen. I could see the diaphragm had move away (very slightly) from the edge, not allowing for an airtight seal. I adjusted and now all is back to perfect running order. Hope this helps.

Posted on Jul 12, 2015

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Will not start. but if I pour gas in carburetor it will. stop after the gas is burn of carburetor


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To clean the carb you will have to remove it from the engine and give it a through cleaning with small diameter wires run through the ports and blowing out the gunk with low pressure air or WD40's little red tube. From your description, you need to do this as the ports are clogged and not letting proper amounts of fuel through to the engine.

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Have to choke to keep running


this is not hard to do here is what you need , 1 can of carb cleaner anykind will do , a 10 mm rench to remove the bowl 7/16 socket . now remove the carb take a good look where the spring is before you take the carb off it muct go back in the same hole , now that you have it off take the bowl off remove the float place to the side here is the fun part look in the carb you will see some small hole spray them this will clean all of the old gas out if you can let it set for about 10 min then do it again blow out with air if you have one nothing else to do but reinstall this works most of the time ...Good Luck..

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