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Tecumseh OVRM120 User Manual

Tecumseh OVRM120
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TecumsehPower
OVRM
120
Engine Operator’s Manual
Four-Cycle Engine • Vertical Crankshaft • Air-Cooled
Table of Contents
IMPORTANT NOTICE! Safety Definitions ........................................ ii
I. General Safety Precautions ............................................................. 1
II. How to Get Service .......................................................................... 3
III. Oil and Fuel Specifications ............................................................... 4
IV. Before Starting Your Engine ............................................................. 4
V. Starting Your Engine......................................................................... 7
VI. Stopping Your Engine and Short-Term Storage.............................. 13
VII. Maintenance................................................................................... 13
VIII. Transporting Your Engine............................................................... 20
IX. Storing Your Engine........................................................................ 21
X. Preventing Forest, Brush and Grass Fires ..................................... 23
XI. Maintenance Intervals .................................................................... 23
California & US EPA Emission Control Warranty Statement .......... 28
Emission Control System Warranty................................................ 29
XII. Warranty Information ...................................................................... 30
Register Your Tecumseh Engine
Maintenance Tips
Parts Look-Up System
Great Tecumseh Apparel
Nearest Authorized Tecumseh Servicing Dealer Location
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www.TecumsehPower.com
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181-1216-14
(English) 1/01/08

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Tecumseh OVRM120 Specifications

General IconGeneral
Compression Ratio8.0:1
Shaft OrientationVertical
Horsepower3.5 HP
Ignition SystemSolid state
Oil Capacity0.6 liters (20 ounces)

Summary

General Safety Precautions

Carbon Monoxide Poisoning Prevention

Dangers of CO gas and precautions against poisoning from engine exhaust.

Gasoline Fire Prevention

Guidelines to prevent fuel fires and explosions when handling gasoline.

Safe Operation and Supervision

Ensure adults supervise engine use, refueling, and maintenance for safety.

Rotating Parts Hazard

Keep clear of engine's moving components to prevent entanglement and serious injury.

Engine Modification and Speed Warnings

Do not modify engine; tampering can cause unsafe speeds and void warranty.

Hot Surfaces and Fire Hazards

Awareness of hot parts and keeping flammable materials away to prevent burns/fires.

Accidental Starts Prevention

Procedures to prevent accidental engine startup during maintenance or servicing.

Hearing Protection Recommendation

Always wear hearing protection to prevent potential hearing damage from engine noise.

How to Get Service

Engine Identification Decal

Locate and record engine identification details for reference and warranty purposes.

Tecumseh Technician's Handbook

Information on obtaining a technician's handbook for advanced engine repair and service.

Oil and Fuel Specifications

Recommended Engine Oil

Details on the type and quantity of oil required for optimal engine operation.

Recommended Fuel Types

Guidelines on appropriate unleaded gasoline and fuel additives for the engine.

Before Starting Your Engine

Checking Oil Level

Procedure to ensure the engine oil level is within the correct operating range before use.

Filling the Oil Sump

Step-by-step instructions for adding oil to the engine, with or without a dipstick.

Filling the Fuel Tank Safely

Safe procedures for adding fuel to the engine's fuel tank, emphasizing ventilation and spill prevention.

Starting Your Engine

Starting with Electric Starter

Instructions for starting engines equipped with electric starters, covering primer and choke operation.

Starting with Recoil Starter

Instructions for starting engines equipped with recoil starters, covering primer and choke operation.

Stopping Your Engine and Short-Term Storage

Maintenance

Checking and Changing Oil

Procedures for monitoring and replacing engine oil based on operating hours and conditions.

Removing Debris from Engine

Clearing grass, dirt, and debris from engine components for optimal cooling and performance.

Spark Plug Maintenance

Inspect, clean, gap, and replace the spark plug for reliable ignition.

Cleaning/Replacing Air Cleaner

Maintaining the air cleaner to prevent engine wear and ensure proper air intake.

Servicing Foam Air Filters

Steps for cleaning and maintaining foam-type air filter elements for optimal engine performance.

Servicing Paper Air Filters

Instructions for replacing paper-type air filter elements as part of regular engine maintenance.

Engine Systems and Adjustments

Carburetor and Engine Speed

Information on carburetor needs, altitude effects, and warnings against modifying engine speed.

Engine Stopping Mechanism

Understanding and maintaining the safety mechanism that stops the engine and blade.

Factory Engine Adjustments

Guidance on engine adjustments, advising to contact a dealer for any required settings.

Transporting Your Engine

Storing Your Engine

Short-Term/Seasonal Storage

Procedures for preparing the engine for periods of inactivity, including cleaning and fuel treatment.

Fuel System Treatment for Storage

Using fuel stabilizers and running the engine to protect the fuel system during storage.

Extended Storage and Draining Fuel

Steps for long-term storage, including draining the fuel tank and lubricating the cylinder bore.

Preventing Forest, Brush and Grass Fires

Maintenance Intervals

Emission Control Warranty Statement

Warranty Information

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