120202-0780-B8 Briggs and Stratton Engine - Overview

Sections of the 120202-0780-B8

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Puller-flywheel – Part Number: 19203
Puller-flywheel
PartSelect #: PS8905120
Manufacturer #: 19203
This flywheel puller is designed for servicing larger small engines by safely removing tightly seated flywheels without stressing the crankshaft or damaging ignition components. Constructed from heavy...
$33.95
  Special Order
Valve-Throttle – Part Number: 797630
Valve-Throttle
PartSelect #: PS9142431
Manufacturer #: 797630
$16.95
  Special Order
Washer-sealing – Part Number: 271716
Washer-sealing
PartSelect #: PS8940580
Manufacturer #: 271716
This authentic OEM sealing washer is designed for your lawn equipment to create a tight seal within the carburetor body, preventing fuel or air leaks. If you notice any signs of leaks, such as drippin...
$6.95
  In Stock
Tube-breather – Part Number: 692600
Tube-breather
PartSelect #: PS9064892
Manufacturer #: 692600
$19.95
  Special Order
Seal-o Ring – Part Number: 691031
Seal-o Ring
PartSelect #: PS9063625
Manufacturer #: 691031
This authentic item is supplied directly from the original equipment manufacturer for use with engines, outboard motors, portable generators, snowthrowers, and lawn mowers made by Briggs & Stratton an...
$9.95
  Special Order
Filter-a/c Foam – Part Number: 273356S
Filter-a/c Foam
PartSelect #: PS8940470
Manufacturer #: 273356S
This is an OEM sourced replacement part used on Briggs and Stratton and Toro equipment. Its purpose is to provide an extra layer of protection from dust and other contaminants. One foam air cleaner fi...
$8.95
  Special Order
Pulley/spring Assembly – Part Number: 791849
Pulley/spring Assembly
PartSelect #: PS9137050
Manufacturer #: 791849
Used With 5MM Diameter Starter Rope
$47.95
  Special Order
Seal-oil – Part Number: 692550
Seal-oil
PartSelect #: PS9064433
Manufacturer #: 692550
It is a genuine OEM sourced replacement component which is specially designed for use with Briggs and Stratton engines commonly installed on Toro lawn and garden equipment. This item fits the crankcas...
$15.95
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Key-woodruff – Part Number: 690979
Key-woodruff
PartSelect #: PS9063568
Manufacturer #: 690979
This timing key is an OEM direct from Briggs & Stratton. The metal component is compatible with many small engines, and is sold individually. The key secures the shaft in the crankshaft. A wrench is o...
$5.95
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Screw – Part Number: 699205
Screw
PartSelect #: PS9068672
Manufacturer #: 699205
$6.95
  Special Order
Gear-Timing – Part Number: 695087
Gear-Timing
PartSelect #: PS9064309
Manufacturer #: 695087
$33.95
  Special Order
Screw – Part Number: 699203
Screw
PartSelect #: PS9066497
Manufacturer #: 699203
$6.95
  Special Order

Questions And Answers for 120202-0780-B8

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Common Symptoms of the 120202-0780-B8

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Will Not Start
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Cannot pull starter cord out or engine will not turn over
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Mistreated Briggs & Stratton 206 CC Engine on MTD Chipper
Removed tank and drained old gas.
Removed and disassembled carb. Needed new gaskets and seals, and had to clean corn syrup glaze (separated ethanol) from bowl and everywhere else with carb cleaner.
Throttle linkage was de-plating/rusty. Steel wool and WD40 got it moving again.
Cleaned spark plug electrode.
Reassembled, poured Sea Foam in the bottom of the tank and gave it a few pulls.
Let Sea Foam sit for a while, then filled the tank with Premium.
Blew white smoke for a minute then ran like new. Shredded for a while, then changed the oil.
Parts Used:
Engine Carburetor Overhaul Kit
  • Dana from HAMMOND, IN
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Nutdriver, Pliers, Screw drivers, Socket set
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Parts fit like a glove
Removed pull start assembly down to the crank. Installed motor housing, motor fan & rewind assembly. All went real good.
Parts Used:
Fan-flywheel Starter-rewind Housing-Blower
  • Wayne from OOLTEWAH, TN
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Socket set
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Needed to replace muffler
Using a socket wrench with extension and a T20 star socket (you can use the appropriate hex head socket also) i removed to two bolts holding the muffler on. They are right on top of the engine and very accessible. Your model may have a heat shield that needs to be removed. Once the muffler is off remove the old gasket. It may be stuck to the muffler or exhaust opening on the engine. It should just pry of with a little effort. I did make sure there were no gasket pieces left behind. I placed the bolts through the flange of the new muffler and then slid the new gasket over the bolts. You can use a exhaust gasket sealant just hold it place while you place the flange in place and not have to worry about gasket dropping off. I just held it until I got the flange in place. I started the bolts by hand using the socket and extension. I alternated from each bolt until I had tighted it down. You can look up torque specs. I just used my grunt meter. It is good as new. Parts were OEM replacement. Not knock off almost right parts. I got very lucky when I found this company and will use them again.
Parts Used:
Muffler Gasket-exhaust
  • Philip from LINEVILLE, AL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Socket set
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