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General| Fuel Type | Gasoline |
|---|---|
| Cooling System | Air-cooled |
| Compression Ratio | 6.5:1 |
| Lubrication System | Splash |
| Oil Capacity | 20 oz (0.6 L) |
| Gap | 0.030 in (0.76 mm) |
| Governor Type | Mechanical |
| Power | 3.5 hp at 3600 rpm |
| Ignition System | Magneto |
| Spark Plug | Champion |
| Carburetor | Float type |
| Starting System | Recoil |
| Rotation | Counterclockwise (from PTO side) |
| PTO Shaft Diameter | 0.75 in (19 mm) |
| Engine Type | 4-cycle, L-head |
Details on locating and understanding Tecumseh engine model and serial numbers.
Explains the meaning of letters and numbers in Tecumseh engine model designations.
Flowchart to diagnose engine starting problems and identify potential causes.
Chart correlating air, diaphragm, and fuel system problems with engine operation issues.
Procedures for testing engine starting circuits and diagnosing carburetor issues.
Guidelines for pre-setting main and idle mixture screws for various Tecumseh carburetors.
Procedure for fine-tuning main and idle mixture screws for optimal engine performance.
Step-by-step instructions for disassembling float style carburetors, including component removal.
Guidance on diagnosing engine problems suspected to be caused by the governor system.
Steps to diagnose and correct engine overspeeding issues to prevent damage.
Troubleshooting steps for diagnosing and correcting engine RPM fluctuations (surging).
Step-by-step instructions for adjusting the governor to set engine speed and RPM.
Information on different speed control systems and linkage adjustments for engine RPM settings.
Details the sequence of operations for electric starter engagement and engine cranking.
Describes the use of diodes and rectifiers to convert AC to DC for battery charging.
Essential preliminary checks for electrical system troubleshooting, including battery and connections.
A diagnostic flowchart to identify and resolve electric starter circuit problems.
A diagnostic flowchart for troubleshooting electrical charging circuit faults.
Steps for checking power sources, starter terminals, wiring, and engine mechanical binding.
Procedures for testing various charging systems by measuring AC/DC voltage at different RPMs.
Introduction to Tecumseh ignition systems: solid state capacitor discharge and magneto systems.
Explains the working principles of solid state (CDI) and magneto ignition systems.
Details the energy storage and release process in a solid state ignition system for spark generation.
Explains how magnetic fields and contact points create spark in a magneto ignition system.
Flowchart to diagnose engine ignition problems, from no start to erratic running.
Steps for testing ignition systems, including spark checks, air gap settings, and component tests.
Covers engine internal components like block, piston, head, crankshaft, and camshaft.
Lists common engine operational issues such as knocks, overheating, surging, misfires, and consumption.
Procedures for testing engine performance issues like knocks, overheating, surging, misfires, and vibration.
Diagnostic steps for identifying causes of engine knocking sounds.
Troubleshooting steps for diagnosing and resolving engine overheating problems.
General service information for internal engine components.
Step-by-step instructions for disassembling the engine, including flywheel and cylinder head removal.
Table of torque specifications for various engine components across different models.
Table of engine specifications for standard point ignition systems.
Table of engine specifications for solid state and external ignition systems.
Quick reference booklet for carburetor problems and repair procedures.
Booklet on identifying Tecumseh ignition systems and troubleshooting related problems.
