Briggs & Stratton 276535, Repair Manual

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2-Cycle Snow Engine
Table of Contents
iv
2-CYCLE SNOW ENGINE
REPAIR MANUAL ..................................... 0
SAFETY INFORMATION ........................... i
In The Interest Of Safety ............................... i
SECTION 1
GENERAL INFORMATION ....................... 1
TWO-CYCLE ENGINE THEORY .................1
IGNITION COIL OPERATION ......................2
REWIND STARTER .....................................3
ELECTRIC START (OPTIONAL) .................3
RECOMMENDED MAINTENANCE
SCHEDULE ..................................................3
25 Hours .......................................................... 3
50 Hours .......................................................... 3
REPLACE SPARK PLUG .............................4
CLEANING THE EXHAUST SYSTEM .........4
SECTION 2
TROUBLESHOOTING .............................. 5
GENERAL TROUBLESHOOTING
INFORMATION ............................................5
Systematic Check ............................................ 5
Check Ignition .................................................. 5
Engine Misfires ................................................ 5
Check Carburetion ........................................... 6
Check Compression ........................................ 6
EQUIPMENT AFFECTING ENGINE
OPERATION ................................................6
Hard Starting, Kickback, or Will Not Start ........ 7
Vibration ........................................................... 7
Power Loss ...................................................... 7
STARTER MOTOR FAILS TO TURN .........7
Power not reaching product. ............................ 7
Starter switch malfunction. ............................... 7
Engine has seized. .......................................... 7
Starter motor has failed. .................................. 7
SECTION 3
ENGINE DISASSEMBLY ..........................9
REMOVE SHROUD .....................................9
REMOVE CARBURETOR ............................9
REMOVE FLYWHEEL ................................10
REMOVE OPTIONAL 120V STARTER ......10
REMOVE MUFFLER ..................................10
REMOVE IGNITION MODULE ...................11
ENGINE DISASSEMBLY ...........................11
SECTION 4
ENGINE OVERHAUL ..............................13
ENGINE INSPECTION & REPAIR .............13
Flywheel and Key ...........................................13
Bearings .........................................................13
Crankcase ......................................................13
Check Cylinder Bore ......................................13
Piston And Rings ............................................14
Piston Pin (Wrist Pin) And Connecting Rod .....4
CARBURETOR DISASSEMBLY ................15
CARBURETOR CLEANING &
INSPECTION ..............................................17
CARBURETOR ASSEMBLY ......................17
REWIND STARTER Replacement .............20
Rope Replacement .........................................20
(OPTIONAL) ELECTRIC STARTER
REPLACEMENT .........................................20
SECTION 5
ENGINE ASSEMBLY ..............................21
ASSEMBLE PISTON AND
CONNECTING ROD ..................................21
INSTALL PISTON RINGS ..........................21
Engine Model 84130 & 84230 ........................21
Engine Model 84330 .....................................21