MTD 173 cc OHV User Manual

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Safe Operation Practices • Set-Up • Operation • Maintenance • Troubleshooting • Warranty
WARNING
READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL
BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
OperatOr’s Manual
173 cc OHV Vertical Shaft Engine
Form No. 769-07391B
(December 6, 2012)

MTD 173 cc OHV Specifications

General

Brand	MTD
Model	173 cc OHV
Category	Engine
Language	English

Summary

Important Safe Operation Practices

Training

Preparation

Safe Handling of Gasoline

Guidelines for safely handling gasoline to prevent injury or damage.

Operation

Maintenance & Storage

Keep the engine in safe working order

Safety Symbols

READ THE OPERATOR'S MANUAL(S)

WARNING—GASOLINE IS FLAMMABLE

Warning about gasoline flammability and cooling before refueling.

WARNING—CARBON MONOXIDE

Warning about carbon monoxide in poorly ventilated areas.

WARNING—ELECTRICAL SHOCK

Warning about using electric starter in the rain.

WARNING—HOT SURFACE

Warning about hot engine parts and the need to cool them.

Set-Up

Gas & Oil

Instructions for filling the engine with gasoline and oil.

Oil Recommendations

Checking Oil Level

Procedure for checking the engine oil level.

Fuel Requirements

Specifications for the type of gasoline to use and warnings.

Adding Fuel

Step-by-step instructions for safely adding fuel to the engine.

Controls and Features

Engine Controls

Operation

Pre-Operation Check

Steps to perform before starting the engine.

Determine The Starting System

Manual Choke System (On the Upper Handle)

Instructions for starting with a manual choke on the handle.

Manual Choke System (On the Engine)

Instructions for starting with a manual choke on the engine.

Auto-Choke System

Instructions for starting with an auto-choke system.

Primer/Electric Start System

Instructions for starting with a primer and electric start.

Stopping Engine

Engine Maintenance

Maintenance Schedule

Schedule of recommended maintenance tasks and intervals.

Oil Service

Procedures for checking and changing engine oil.

Oil Change

Air Filter Service

Air Filter Service

Dual Element Air Filter

Single Element Air Filter

Spark Plug Service

Spark Plug Service

Fuel Filter Service

Fuel Filter Service

Troubleshooting

Engine Fails to start

Engine runs erratic

Engine overheats

Occasional skips (hesitates) at high speed

Idles poorly

Replacement Parts