MTD 357CC User Manual

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Safety • Operation • Maintenance • Storage • Troubleshooting

READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION

IMPORTANT:

PRINTED IN U.S.A. MTD Products Ltd., P. O. Box 1386, KITCHENER, ONTARIO N2G 4J1

277cc, 357cc and 420 cc

Horizontal Shaft OHV Snow Engines

06/05/09

769 -05118

OPERATOR’S MANUAL

Table of Contents

Questions and Answers:

K
kriceAug 7, 2025
Why MTD Engine fails to start?
- D
  Debbie SmithAug 7, 2025
  Your MTD engine might fail to start due to several reasons: the engine may be flooded from excessive priming, in which case you should wait at least ten minutes before starting. Other potential causes include a disconnected spark plug wire (connect it to the spark plug), an empty fuel tank or stale fuel (fill with clean, fresh gasoline), the engine not being choked (choke the engine), a faulty spark plug (clean, adjust gap, or replace it), the engine not being primed (prime the engine 3 times), the ignition key installed improperly (insert the ignition key all the way), or the throttle being in the stop position (move the throttle to the FAST/RUN position).
T
tcooperAug 18, 2025
Why does my MTD 357CC Engine fail to start?
- D
  Donna GutierrezAug 18, 2025
  Your MTD Engine might fail to start due to several reasons. It could be flooded, in which case you should wait at least 10 minutes before attempting to start it again. Other potential causes include a disconnected spark plug wire (connect it to the spark plug), an empty fuel tank or stale fuel (fill the tank with clean, fresh gasoline), the engine not being choked (choke the engine), a faulty spark plug (clean, adjust the gap, or replace it), or the throttle being in the stop position (move the throttle to the FAST/Run position).
J
jasondiazAug 27, 2025
What to do if MTD 357CC Engine runs erratically?
- B
  Brendan PerezAug 27, 2025
  If your MTD engine is running erratically, it could be due to a few reasons. Check the spark plug wire to ensure it is connected and tightened. Also, the spark plug could be scorched, defective, or have an incorrectly set electrode gap, so readjust the gap or replace the spark plug. Stale fuel, running the unit with the choke on (move choke to off), or water/dirt in the fuel system (drain and refill with fresh fuel) might also cause this issue.

MTD 357CC Specifications

General

Brand	MTD
Model	357CC
Category	Engine
Language	English

Summary

Engine Safe Operation Practices

Fuel Handling and Fire Safety

Guidelines for safe refueling, handling gasoline, and preventing fuel-related fires and explosions.

Engine Operation Hazards

Precautions concerning carbon monoxide, hot surfaces, and preventing fires from accumulated debris.

Mechanical and Electrical Hazards

Warnings about rotating parts, entanglement, kickback, and electrical shock risks.

Safety Label and Symbol Explanations

Explanation of safety label locations and interpretation of international safety symbols.

Operating the Engine

Engine Components Overview

Identification and description of key engine parts, controls, and reservoirs.

Primer, Ignition, Throttle, and Choke Operation

Instructions for using primer, ignition key, throttle, and choke for engine start-up.

Pre-Operation Checks and Recommendations

Essential checks before operation, including oil and fuel levels, and recommended types.

Electric Start Procedure

Step-by-step guide for starting the engine using the electric starter system.

Manual Start Procedure

Instructions for starting the engine using the starter handle (recoil start).

Stopping the Engine

Procedure for safely shutting down the engine after use, including key removal.

Maintaining the Engine

Maintenance Schedule and Oil Service

Recommended maintenance tasks, intervals, and procedures for checking and changing engine oil.

Spark Plug and Engine Cleaning

Guide for servicing the spark plug and cleaning the engine exterior to prevent debris buildup.

Engine Storage and Retrieval

Steps for preparing the engine for long-term storage and procedures for removing it from storage.

Troubleshooting

Engine Start-Up Issues

Common causes and solutions for an engine that fails to start.

Engine Operation Problems

Troubleshooting for erratic engine running and overheating issues.

Emission Control System Warranty

Warranty Coverage and Owner Responsibilities

Details on manufacturer's warranty coverage, owner's maintenance obligations, and claim procedures.

Emission-Related Parts and Interpretations

List of emission warranty parts and how warranty applies based on maintenance schedules.

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