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49E877 (0010-G1) Briggs and Stratton Engine - Overview

Diagrams for 49E877

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Gear-governor – Part Number: 793338
$40.69
Special Order
Gear-governor
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(1)
Part #793338
This gear-governor is a special component that helps to engage the drive shaft. It is a genuine Briggs and Stratton item that is supplied by the original manufacturer for use with small engines that are commonly installed on a variety of lawn and garden equipment. It provides an identical replacement for a damaged or a missing hardware that was installed on a new unit. Check the diagrams for your model for the exact location and the correct installation of this part. One durable metal gear-governor is included. You may need a screwdriver and a wrench set to perform this repair.
Screw – Part Number: 691108
$6.40
In Stock
Screw
Part #691108
This is an authentic OEM sourced replacement part that is intended to be used with lawnmower engines and outboard motors from Briggs & Stratton and Toro. The metal screw is used to secure the rocker cover to the cylinder head assembly. This item is available as an individual replacement part.
Hose-vacuum – Part Number: 791766
$10.60
In Stock
Hose-vacuum
Part #791766
This genuine part is sourced directly from the original equipment manufacturer. It is specially designed for use with Briggs and Stratton engines commonly installed on lawn and garden equipment. The purpose of this hose is to transfer vacuum from the engine. Unfortunately, over time the material may wear out and begin to crack eventually requiring a replacement. Make sure to check the diagrams of your model for the exact location and the correct installation of this part. Note, this item includes one durable rubber hose and two metal clamps to secure it.
Seal-valve – Part Number: 690968
$15.97
Special Order
Seal-valve
Part #690968
This is a genuine OEM part. The Briggs & Stratton valve seal is used on many lawn tractor machines. The metal part stops oil from moving into the cylinder from the valve stem. This item is often fastened to the intake valve and the valve keeper. A screwdriver, socket set and wrench set are required for the installation. The metal valve seal is sold individually.
Clamp-hose – Part Number: 791850
$6.40
In Stock
Clamp-hose
Part #791850
This is a genuine manufacturer-sourced part which is designed for use on lawn and garden equipment. It is an identical replacement for a missing or a damaged clamp that is used to secure the hose. Keep in mind this high-quality product is made of durable metal and is sold individually. Please make sure to check the appropriate diagrams for your model for the correct location and application of this hardware.
Plug-spark – Part Number: 792015
$9.03
In Stock
Plug-spark
Part #792015
This is a genuine replacement part manufactured for use with small engines. The spark plug is used to fire the air-fuel mixture inside the cylinder. This spark plug is available as an individual replacement part, please see model diagram for associative parts.
Filter-fuel – Part Number: 845125
$9.72
In Stock
Filter-fuel
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Part #845125
This is a genuine part that is supplied by the original manufacturer for use with Craftsman wood lathes and lawn mowers. The fuel filter removes debris before it reaches the carburetor in your equipment. This part made of plastic and is sold individually. For installation, you will need a socket wrench to remove any shrouds or panels, and a pair of needle nose pliers to aid you.
Key-flywheel – Part Number: 796335
$8.89
In Stock
Key-flywheel
Part #796335
This item is a genuine Briggs & Stratton replacement part that has been sourced from the original manufacturer to be used with small engines. The metal key fits into the slot on the crankshaft and aligns with the keyway in the flywheel. This key allows the flywheel to rotate in unison with the crankshaft. The flywheel key is sold individually.
Screw – Part Number: 691003
$6.40
In Stock
Screw
Part #691003
This is an original replacement part sourced directly from the manufacturer. The screw is commonly found in engines, lawn tractors, and snow throwers from Briggs & Stratton and Toro. This part is made of metal, and is generally used to secure the cylinder shield. Please be aware that there are different screws used in the machine. Refer to the parts diagram to be sure of ordering the correct part. You will require a wrench when replacing this item. The screw is sold as an individual replacement part.
Screw – Part Number: 594618
$6.40
In Stock
Screw
Part #594618
This authentic replacement part is supplied directly from the original equipment manufacturer for use with lawn and garden equipment. It is an identical replacement for a missing or a faulty screw that was installed on a new unit. This is one of the special screws that are utilized to secure the blower housing, please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality part is made of durable metal and is sold individually.
Rod, Push – Part Number: 597785
$13.02
In Stock
Rod, Push
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Part #597785
This aluminum OEM push rod is found in your lawn mower. It operates on the camshaft and pushes the exhaust valve open during the exhaust stroke. If you notice that the push rod is bent, it needs to be replaced. A damaged push rod can cause unusual clicking, tapping, or knocking sounds to come from the engine. It can also lead to improper valve operation, resulting in engine misfiring, loss of power, or uneven running. To replace the push rod, you will need to locate and access the valve cover. It is advisable to gather a screwdriver, pliers, a socket set, a wrench set, and a torque wrench for this repair. Please note that the replacement part is sold individually.
Seal-governor Shaft – Part Number: 790574
$9.11
In Stock
Seal-governor Shaft
Part #790574
This is an OEM part sourced directly from the manufacturer. The governor shaft seal is designed for use in lawn tractors from Toro and engines from Briggs & Stratton. This part is made of high-quality plastic, and is used to help prevent leakage along the governor crank. You may require a wrench and pliers when replacing this part. This item is sold individually.

Common Symptoms of the 49E877

How this model fails, and the parts that fix it.

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Bad governor
12 of 24 people found this instruction helpful.
  • John from BROOKVILLE, IN
  • Easy
  • 1- 2 hours
  • Nutdriver, Pliers, Socket set, Wrench set
Look on YouTube for video's on how to replace a Briggs governor. There are several there. My favorite, with best explanation, is, "Easily Replace Briggs Governor Gear (V-Twin Intek Engine) with Taryl". https://www.youtube.com/watch?v=wn3eanGxSEA&t=152s.

Taryl (probably not his real name) does a very good job of showing step-by- step the whole procedure, along with some additional hints/tricks/techniques of value.

Not including oil and filter, I spent less than $50 for a new governor, gasket, and drive shaft seal. That's all that is really necessary to replace is those three parts. That is, unless pieces of the old governor tore up a gear, valve, or something else. Inspect everything! {I was lucky and only the governor was destroyed}

One word of note. Be sure to clean out all of the debris from the blown governor. Be sure to remove the spark plugs and carefully rotate the drive shaft while looking for nooks-and-crannies where debris can hide. I tried to use a magnet to help, but it didn't help much, even though the block is aluminum.

Good luck.
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