Tecumseh 2 Cycle Small Engine Repair Manual Service & Repair Manual Download PDF #❶ SELLING

GENERAL INFORMATION 1
ENGINE IDENTIFICATION 1
INTERPRETATION OF MODEL NUMBER 1
ENGINE CARE 2
SHORT BLOCKS 2
STORAGE: 2
TUNE-UP PROCEDURE 3
EXHAUST PORT CLEANING 3
2-CYCLE THEORY OF OPERATION 4
OPERATION OF PISTON PORT STYLE 4
OPERATION OF REED PORTED STYLE
WITH LOOP SCAVENGING 4
TERMS 4
EXHAUST OR SCAVENGE PHASE 4
PORTS 4
EXHAUST PORTS 4
THIRD PORT 4
REED VALVE 4
LUBRICATION 4
AIR CLEANERS, CARBURETORS, GOVERNORS
AND LINKAGE 5
AIR CLEANERS 5
POLYURETHANE-TYPE AIR CLEANER 5
KLEEN-AIRE® SYSTEM 5
PAPER-TYPE AIR CLEANER SERVICE 5
GENERAL CARBURETOR INFORMATION 6
CARBURETOR IDENTIFICATION 6
FLOAT-TYPE CARBURETORS 6
DIAPHRAGM (PRESSURE DIFFERENTIAL)
CARBURETORS 6
OPERATION 7
CARBURETOR SERVICE 7
THROTTLE 7
CHOKE 8
ADJUSTING SCREWS 8
FUEL BOWL RETAINING NUT 8
CARBURETOR VENTING 8
HIGH TILT FLOAT STYLE 8
FUEL BOWL 8
FLOAT 8
INLET NEEDLE AND SEAT (FLOAT
CARBURETORS) 9
NEEDLE AND SEAT OPO-OFF TEST 9
FLOAT HEIGHT SETTINGS 9
PRIMER BULB 10
CLEANING CARBURETOR BODY 10
DIAPHRAGMS 10
INLET NEEDLE AND SEAT 11
FUEL INLET FITTING 11
ii
IGNITION 31
IGNITION OPERATION (Pre- 1985
Production) 31
MAGNETO IGNITION 31
CONTACT POINTS 31
CONDENSER 31
OPERATION OF THE TECUMSEH
MAGNETO IGNITION 31
SOLID STATE IGNITION (1985 to Present) 32
SOLID STATE IGNITION OPERATION 32
IGNITION SERVICE 33
SPARK PLUG SERVICE 33
FLYWHEEL REMOVAL AND SERVICE 33
FLYWHEEL MAGNETS 33
FLYWHEEL KEYS 34
ADAPTER KEY TO FLYWHEEL ASSEMBLY 34
FLYWHEEL SLEEVE 34
FLYWHEEL TORQUE 34
REPLACING MAGNETO BREAKER POINTS 34
CONDENSER CHECK 34
IGNITION COIL 34
IGNITION TIMING 34
FIXED TIME SPEED (EXTERNAL COIL) 36
SOLID STATE (CDI) 36
OTHER IGNITION SYSTEMS 36
OUTBOARD TIMING 38
OUTBOARD TIMING (STANDARD IGNITION) 38
OUTBOARD TIMING (SOLID STATE) 39
CYLINDERS & INTERNAL COMPONENTS 41
PISTON & RING SERVICE 41
CONNECTING ROD SERVICE 42
NEEDLE BEARINGS 42
CRANKSHAFT, BEARING AND OIL SEAL
SERVICE 43
NEEDLE BEARINGS 43

This manual contains information on Tecumseh Engines built to comply with emission regulations As a technician it is unlawful to modify or cause a change in the original calibration of these engines All speed adjustments must remain within the limits that are specified for each engine, and are not to exceed the maximum Any deviation must be specifically approved by Tecumseh Products Company

OIL SEALS 43
ONE PIECE SEALS 43
THREE PIECE SEALS 44
OUTBOARD SEAL SERVICE 44
CYLINDERS, REEDS & COMPRESSION
RELEASE 45
CYLINDER & HEAD SERVICE 45
GASKETS 45
REED VALVES 45
AUTOMATIC COMPRESSION RELEASE
(DOUBLE REED TYPE) 45
AUTOMATIC COMPRESSION RELEASE
(SINGLE REED TYPE) 45
CYLINDER EXHAUST PORTS 46
TROUBLESHOOTING 47
ENGINE FAILS TO START OR STARTS
WITH DIFFICULTY 47
ENGINE KNOCKS 47
ENGINE MISSES UNDER LOAD 48
ENGINE LACKS POWER 48
ENGINE OVERHEATS 48
ENGINE SURGES OR RUNS UNEVENLY 49
ENGINE VIBRATES EXCESSIVELY 49
SPECIFICATIONS 50
ENGINE TYPE NUMBER AND LETTER
REFERENCE 50
SEARS CRAFTSMAN CROSS REFERENCE 51
TABLE OF SPECIFICATIONS 52 – 61
TABLE OF TORQUE LIMITS 62
EDUCATIONAL MATERIALS AND TOOLS 63
AVAILABLE TECHNICIAN’S HANDBOOKS 63
AVAILABLE FOREIGN TECHNICIAN’S
HANDBOOKS 63
TOOL KIT 670195D 64
TOOLS 65

PLEASE NOTE:

• This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
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