12E702-0723-01 Briggs and Stratton Engine - Overview

Sections of the 12E702-0723-01

[Viewing 15 of 15]
Keep searches simple, eg. "belt" or "pump".
Seal-o Ring – Part Number: 270344S
Seal-o Ring
PartSelect #: PS8936675
Manufacturer #: 270344S
This authentic OEM replacement part fits a variety of Toro and Briggs & Stratton engines. An O ring is used to retain pressure between rigid parts. Its flexible material allows it to create a tight se...
$5.95
  In Stock
Pin-piston/std – Part Number: 298909
Pin-piston/std
PartSelect #: PS8942667
Manufacturer #: 298909
$15.95
  Special Order
Key-flywheel – Part Number: 222698S
Key-flywheel
PartSelect #: PS8925657
Manufacturer #: 222698S
This is a Genuine OEM replacement part used on a variety of Lawn and Garden equipment. The key helps to secure Flywheel in place. This is a Metal Key and it is Sold Individually. You would need Plier...
$5.95
  In Stock
Screw – Part Number: 691693
Screw
PartSelect #: PS9294701
Manufacturer #: 691693
$6.95
  Special Order
Starter Pawl-Ratchet – Part Number: 281505S
Starter Pawl-Ratchet
PartSelect #: PS8942598
Manufacturer #: 281505S
This Genuine OEM ratchet pawl is a critical component designed to engage the recoil starting system with the engine, ensuring smooth and reliable starts. Manufactured from durable plastic, this replac...
$5.95
  Special Order
Rope-starter – Part Number: 280399S
Rope-starter
PartSelect #: PS8945117
Manufacturer #: 280399S
This durable nylon starter rope is an authentic OEM supplied replacement part that is specially produced for use with Briggs and Stratton engines that are commonly installed on Toro lawn and garden eq...
$10.95
  Special Order
Deflector-muffler – Part Number: 393760
Deflector-muffler
PartSelect #: PS8960984
Manufacturer #: 393760
This is a genuine Briggs & Stratton and Toro replacement part for use in engines, lawn mowers, and lawn tractors. The muffler deflector is made out of metal. A wrench may be needed during the replacem...
$15.95
  Special Order
Seal-oil – Part Number: 399781S
Seal-oil
PartSelect #: PS8960670
Manufacturer #: 399781S
This is an authentic replacement part manufactured for use with small engines. Seals can deteriorate overtime, and it is recommended to replace worn seals when servicing an engine. This seal is the lo...
$13.95
  Special Order
Deflector-Muffler – Part Number: 396548
Deflector-Muffler
PartSelect #: PS8960606
Manufacturer #: 396548
$27.95
  Special Order
Armature-Magneto – Part Number: 590454
Armature-Magneto
PartSelect #: PS9044018
Manufacturer #: 590454
This genuine replacement magneto is designed for Briggs & Stratton engines used in Toro lawn mowers. It plays a vital role in the ignition system by generating the electrical current needed to fire th...
$102.95
  In Stock
Engine Spark Plug Boot – Part Number: 66538S
Engine Spark Plug Boot
PartSelect #: PS9055852
Manufacturer #: 66538S
This spark plug boot is a genuine OEM Briggs & Stratton replacement designed to fit securely over the spark plug, protecting the connection from moisture, dirt, and debris. Its durable, elbow-style de...
$6.95
  Special Order
Screw – Part Number: 691125
Screw
PartSelect #: PS9064544
Manufacturer #: 691125
$6.95
  Special Order

Common Symptoms of the 12E702-0723-01

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Will Not Start
Fixed by
these parts
Fixing Fixing Fixing
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Cannot pull starter cord out or engine will not turn over
Fixed by
these parts
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Engine will not idle
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Fixing
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
starter rewind cord broke
I found the model number of the Briggs & Stratton engine on the inside of the engine housing. Ordered a new starter-rewind unit, as the old cord broke and the thing was well worn. The instructions were clear enough, but to get the old starter off I had to drill out four rivets, which just spin around when you try. I used a hacksaw, chisel, pliers, whatever worked on each rivet; this took a while. When they were finally removed, the new starter pull unit was relatively easy to install with the small nuts and bolts provided. On the Yard Machines log splitter, putting back the engine housing is quite tricky; you have to jostle the thing into place, get the pull handle above the cover and line up the bolt holes.
Parts Used:
Engine Recoil Starter Assembly
  • Seikai from MARICOPA, CA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Nutdriver, Pliers, Screw drivers, Socket set, Wrench (Adjustable), Wrench set
15 of 22 people found this instruction helpful.
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Smelled Gas Leaks
Inspected/removed fuel lines and found signs of leak. Removed and inspected carburetor and found that seals and gaskets were toast. Replaced said seals with ones from the kit that fit and replaced fuel lines.

Would be nice to have a fuel line kit with the big fuel line (tank to carb) and the little one (carb to engine) together with all the necessary clamps.
Parts Used:
Line-fuel Clamp-hose Carburetor Overhaul Kit
  • Jonathan from LIBERTY TWP, OH
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers, Screw drivers, Socket set
8 of 11 people found this instruction helpful.
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Mower body was die cast and in good condition. Engine was burning oil.
Removed engine, no specialty tools required. Honed the cylinder, and lapped the valves. Tip on compressing valve spring for reassembly; compress springs with you finger and tie them with 2 zip ties, cut the zip ties after installing the keepers. Repainted the mower deck and engine. It runs and looks like new. My Toro is a 1999 model .
Parts Used:
Engine Gasket Set Ring Set-std
  • Robert from TEGA CAY, SC
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    More than 2 hours
5 of 8 people found this instruction helpful.
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