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100902-4000-82 Briggs and Stratton Engine - Overview

Sections of the 100902-4000-82

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Lawn Mower Spark Plug – Part Number: 796112S
Lawn Mower Spark Plug
★★★★★
★★★★★
(1)
PartSelect #: PS9140427
Manufacturer #: 796112S
This is an OEM replacement part and is sold individually. Its propose is to deliver an electric current from an ignition system to the combustion chamber of a gas fueled engine. It will ignite the air...
$6.40
  In Stock
Order now and your part arrives by Apr 6
Diaphragm-carburetor – Part Number: 270026
Diaphragm-carburetor
★★★★★
★★★★★
(3)
PartSelect #: PS8937201
Manufacturer #: 270026
This is a carburetor diaphragm, which is an OEM part that pumps fuel from the tank to the engine. It is roughly 1x2 inches and black in color. Sold individually, this part can fail due to fatigue and ...
  No Longer Available
Spring-rewind Str – Part Number: 490179
Spring-rewind Str
PartSelect #: PS8978476
Manufacturer #: 490179
This rewind starter spring or as it is also known, recoil spring, rewinds the pull robe back into the starter housing of your engine. The spring is made of metal, silver colored, and sold individually...
  No Longer Available
Tube-pick Up – Part Number: 391813
Tube-pick Up
PartSelect #: PS8966338
Manufacturer #: 391813
Genuine Manufacturer Approved replacement part used on a variety of Engines. This is a tube pick-up for 3-5HP horizontal and 5HP vertical engines with 2 and 3 quart tanks and a pulsa jet carburetor. T...
  No Longer Available
Clutch-starter – Part Number: 399671
Clutch-starter
★★★★★
★★★★★
(2)
PartSelect #: PS8968281
Manufacturer #: 399671
Discover the power of optimal engine performance with the Briggs and Stratton Starter Clutch. A vital piece of your garden equipments engine, this starter clutch engages your machines flywheel while k...
$48.09
  In Stock
Order now and your part arrives by Apr 6
Gasket-cylinder Head – Part Number: 272157S
Gasket-cylinder Head
PartSelect #: PS8941204
Manufacturer #: 272157S
The cylinder head gasket, also known just as the head gasket, is an OEM part sold individually. Grey in color, the head gasket provides a seal between the cylinder head and the engine block in your en...
$8.50
  On Order
Armature-magneto – Part Number: 397358
Armature-magneto
PartSelect #: PS9278124
Manufacturer #: 397358
This magneto, also known as an ignition coil, is a genuine OEM replacement part for outdoor power equipment. It generates the spark needed to ignite the air-fuel mixture in the engine’s combustion cha...
$62.60
  In Stock
Order now and your part arrives by Apr 6
Seal-oil – Part Number: 299819S
Seal-oil
PartSelect #: PS8948679
Manufacturer #: 299819S
This OEM Oil Seal is an individually sold rubber part which is attached around the axis shaft on the crankcase housing to provide a proper seal. A broken seal will lead to a leak, and the part should ...
$7.47
  In Stock
Order now and your part arrives by Apr 6
Deflector-muffler – Part Number: 796956
Deflector-muffler
PartSelect #: PS9138598
Manufacturer #: 796956
This item is available as an individual replacement part but also includes the screws. The muffler deflector attaches to the lo-tone muffler and is made of metal. A nutdriver might be required during ...
$15.76
  In Stock
Order now and your part arrives by Apr 6
Gasket-breather – Part Number: 27549S
Gasket-breather
PartSelect #: PS8943888
Manufacturer #: 27549S
The Breather Gasket is OEM and used to provide an airtight seal for the breather assembly. It is a gray part, attached between the breather cap and engine. Installation is rated "Easy" and will requir...
$6.40
  In Stock
Order now and your part arrives by Apr 6
Engine Spark Plug Boot – Part Number: 66538S
Engine Spark Plug Boot
PartSelect #: PS9055852
Manufacturer #: 66538S
$6.40
  In Stock
Order now and your part arrives by Apr 6
Engine Screw – Part Number: 692198
Engine Screw
PartSelect #: PS9294799
Manufacturer #: 692198
$8.01
  In Stock
Order now and your part arrives by Apr 6

Questions And Answers for 100902-4000-82

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Common Symptoms of the 100902-4000-82

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5 HP Briggs and Stratton chipper shredder - no spark
Removed old sparkless magneto, replaced with new part PS9278124 Magneto, and still no spark. The only conclusion that I can draw, is this magneto is defective,
Parts Used:
Armature-magneto
  • Thomas from ALFRED, ME
  • Difficulty Level:
    Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Pliers
16 of 23 people found this instruction helpful.
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Could not keep an aftermarket muffler on the engine.
Once I determined what OEM muffler I needed, installation was relatively easy. I have a 1982 4hp Briggs on my Snapper tiller. There was a 90* galvanized elbow coming out of the exhaust port, with a bezel nut to lock it down. Do not remove the elbow, even though it appears that you should. If you install the muffler without the elbow the muffler will parallel the the vacuum for the carburetor and can melt the rubber couplers. Use the elbow to direct the heat away from the carburetor. Use a pipe wrench to lock down the bezel nut because the weight of the muffler, especially under vibration, can work loose and fall down on the tine belt cover and melt it. The bezel nut that comes with the muffler should also be used to lock down the muffler to the threaded intake bracket that comes with the muffler, not to replace the bezel nut for the elbow.
Parts Used:
Muffler
  • Richard from KERNERSVILLE, NC
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Wrench set
13 of 16 people found this instruction helpful.
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