Micro Trimmer Engine Repair Manual BRIGGS & STRATTON.pdf

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For Briggs & Stratton Discount Parts Call 606-678-9623 or 606-561-4983
Micro Engine
Repair Manual
www.mymowerparts.com
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TABLE OF CONTENTS
GENERAL INFORMATION
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Section 1
DISASSEMBLY AND REPAIR
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Section 2
I
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SECTION CONTENTS
2 Section 2
Disassembly and Repair
General Information
Rewind Assembly
Inspect Starter Rope
Remove Blower Housing – Direct Drive Engine
Replace Starter Rope
Install Blower Housing – Direct Drive Engine
Remove Blower Housing – Clutch Drive Engine
Install Blower Housing – Clutch Drive Engine
Ignition Coil
Remove Coil
Install Coil
Adjust Air Gap
Flywheel
Remove Flywheel – Direct Drive Engine
Install Flywheel – Direct Drive Engine
Remove Flywheel – Clutch Drive Engine
Install Flywheel – Clutch Drive Engine
Fuel Tank
Remove Fuel Tank
Install Fuel Tank
Cylinder Head
Remove Cylinder Head
Install Cylinder Head
Muffler
Replace Muffler
Carburetor
Remove Carburetor
Install Carburetor
Idle Speed Adjustment
1 Section 1
General Information
In The Interest Of Safety
Briggs & Stratton Numerical Identification System
Engine Identification
Fuel and Oil Recommendations
Gasoline
Lubrication
Maintenance
Check Oil
Change Oil
Air Cleaner
Breather Check Valve
Replace Spark Plug
Cooling System
Troubleshooting
Systematic Check
Check Ignition
Check Carburetion
Check Compression
Equipment Affecting Engine Operation
Hard Starting, Kickback or Will Not Start
Vibration
Power Loss
II
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Section 1
General Information
Section Contents
Page
IN THE INTEREST OF SAFETY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
BRIGGS & STRATTON NUMERICAL IDENTIFICATION SYSTEM
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4
ENGINE IDENTIFICATION
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FUEL AND OIL RECOMMENDATIONS (G asoline, Lubrication)
5
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5
MAINTENANCE
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6
Check Oil
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Change Oil
6
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7
Air Cleaner
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Replace Spark Plug
7
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7
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TROUBLESHOOTING
Cooling System
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
Systematic Check
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Check Ignition (With Engine Starter)
8
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8
Check Ignition (Engine Running)
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9
Check Carburetion
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Check Compression
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Affecting Engine Operation
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hard Starting, Kickback or Will Not Start
9
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9
Vibration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Loss
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
The Briggs & Stratton engine is made of the finest material in a state-of-the-art manufacturing facility. Please un-
derstand that Briggs & Stratton sells engines to original equipment manufacturers. It also sells to others in the
distribution chain who may sell to the ultimate consumer, an equipment manufacturer, another distributor or a
dealer. As a result, Briggs & Stratton does not necessarily know the application on which the engine will be placed.
For that reason, carefully read and understand the operating instructions of the equipment before you repair or
operate.
Y ou should also understand that there are equipment applications for which Briggs & Stratton does not approve
the use of its engines. Briggs & Stratton engines are not to be used on vehicles with less than 4 wheels. This
includes motor bikes, aircraft products and All Terrain Vehicles. Moreover, Briggs & Stratton does not approve
of its engines being used in competitive events. FOR THAT REASON, BRIGGS & STRATTON ENGINES ARE
NOT AUTHORIZED FOR ANY OF THESE APPLICATIONS. Failure to follow this warning could result in death,
serious injury (including paralysis) or property damage.
IN THE INTEREST OF SAFETY
A signal word (DANGER, WARNING or CAUTION) is
used with the alert symbol to indicate the likelihood and
the potential severity of injury. In addition, a hazard
symbol may be used to represent the type of hazard.
The safety alert symbol ( ) is used to identify
safety information about hazards that can result in
personal injury.
1
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