MTD Series 080 User Manual

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MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

Printed In USA

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Op e r a t O r ’s Ma n u a l

Form No. 769-04300

(August 21, 2008)

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Questions and Answers:

I
Isaac LeonardAug 17, 2025
Why MTD 080 Lawn Mower engine fails to start?
- C
  carmenmoodyAug 17, 2025
  The MTD Lawn Mower engine may fail to start due to several reasons: the blade control might be disengaged (engage the blade control); the spark plug boot could be disconnected (connect the wire to the spark boot); the fuel tank might be empty or contain stale fuel (fill the tank with clean, fresh gasoline); the engine might not be primed (prime the engine as instructed); the spark plug could be faulty (clean, adjust the gap, or replace it); the fuel line might be blocked (clean the fuel line); the engine could be flooded (wait a few minutes to restart, but do not prime); the fuel valve might be closed (open the fuel valve); or the engine might not be choked (choke the engine).
D
Donald LindseyAug 20, 2025
Why MTD 080 engine runs erratic?
- R
  Regina StoneAug 20, 2025
  An MTD Lawn Mower engine may run erratically due to a loose spark plug boot (connect and tighten it), a blocked fuel line or stale fuel (clean the fuel line and refill with fresh gasoline), a plugged vent in the gas cap (clear the vent), or water/dirt in the fuel system (drain the fuel tank and refill with fresh fuel). Also, check if the unit is running with the choke applied and push the choke knob in if necessary.
B
Brad PhamAug 22, 2025
How to fix uneven cut with MTD Lawn Mower?
- M
  Melissa RuizAug 22, 2025
  An uneven cut with your MTD Lawn Mower can occur if the wheels are not positioned correctly (place all four wheels in the same height position if equipped with individual height adjusters) or if the blade is dull (sharpen or replace the blade).
J
Justin EvansAug 26, 2025
Why MTD Lawn Mower has an uneven cut?
- M
  medinaannAug 26, 2025
  An uneven cut with your MTD Lawn Mower may be caused by: * Improper wheel positioning; place all four wheels in the same height position. * A dull blade; sharpen or replace the blade.
R
russelllauraAug 27, 2025
What to do if MTD 080 idles poorly?
- J
  James HoffmanAug 27, 2025
  If your MTD Lawn Mower idles poorly, the spark plug may be fouled, faulty, or have a gap that is too wide. Reset the gap to .030” or replace the spark plug.
C
Charles JohnsAug 30, 2025
What to do if MTD 080 Lawn Mower engine overheats?
- D
  Douglas SilvaAug 30, 2025
  If your MTD Lawn Mower engine overheats, it could be due to a low engine oil level (fill the crankcase with the proper oil) or restricted airflow (clean the area around and on top of the engine).
M
Miss Brittany HesterSep 1, 2025
Why MTD 080 has excessive vibration?
- M
  mcolemanSep 1, 2025
  Excessive vibration in your MTD Lawn Mower can be caused by a loose or unbalanced cutting blade (tighten the blade and adapter, and balance the blade). If the cutting blade is bent, consult an authorized service dealer.
D
Deborah McknightSep 4, 2025
What to do if MTD 080 will not mulch grass?
- S
  Susan HernandezSep 4, 2025
  If your MTD Lawn Mower won't mulch grass, it might be due to wet grass (do not mow when grass is wet; wait until later to cut), excessively high grass (mow once at a high cutting height, then mow again at desired height or make a narrower cutting path), or a dull blade (sharpen or replace the blade).
S
Shannon McdonaldSep 6, 2025
Why MTD Lawn Mower idles poorly?
- K
  Katie ReyesSep 6, 2025
  Poor idling in your MTD Lawn Mower can be caused by a spark plug that is fouled, faulty, or has a gap that is too wide (reset the gap to .030” or replace the spark plug).
S
sarah81Sep 9, 2025
Why MTD 080 Lawn Mower occasionally skips at high speed?
- C
  Carl WarnerSep 9, 2025
  Occasional skipping or hesitation at high speed in your MTD Lawn Mower may be due to a spark plug gap that is too close (adjust the gap to .030”).

MTD Series 080 Specifications

General

Brand	MTD
Model	Series 080
Category	Lawn Mower
Language	English

Summary

Important Safe Operation Practices

General Operation

Read, understand, and follow all instructions before operating the machine.

Safety Warnings

Key safety warnings including Proposition 65 and DANGER notices.

Slope Operation

Exercise caution on slopes, do not mow slopes greater than 15 degrees.

Children

Keep children out of the mowing area and be alert to their presence.

Service

Safe Handling Of Gasoline

Handle gasoline with care due to flammability and explosive vapors.

General Service

General recommendations for maintenance, lubrication, and engine care.

Do Not Modify Engine

Avoid modifying the engine, especially the governor setting, to prevent unsafe speeds.

Notice Regarding Emissions

Information on emission control systems and regulations for California and federal EPA.

Spark Arrestor

Warning about using the machine on dry grass or brush without a spark arrester.

Safety Symbols

Assembly & Set-Up

Contents of Carton

Lists the items included in the carton with the lawn mower.

Assembly

Instructions for assembling the lawn mower, including chute deflector.

Handle

Steps for setting up the mower handle to the desired height position.

Mulching Baffle (If Equipped)

Instructions for installing the optional mulching baffle.

Cutting Height

How to adjust the cutting height of the mower using the levers.

Set-Up (Gas and Oil Fill-Up)

Instructions for filling the engine with gasoline and oil before operation.

Controls and Features

Blade Control

Description of the blade control lever and its function as a safety device.

Cutting Height Adjustment Lever

Explanation of the levers used to adjust the cutting height on each wheel.

Recoil Starter

How to use the recoil starter to start the mower's engine.

Mulching Baffle (If Equipped)

Information on the mulching baffle and its attachment.

Operation

Starting Engine

Step-by-step instructions for starting the mower's engine.

Stopping Engine

How to stop the engine and blade using the blade control.

Using Your Lawn Mower

Safety precautions and tips for operating the lawn mower effectively.

Using as Mulcher (If Equipped)

Guidance on using the mulching baffle for effective mulching.

Maintenance & Adjustments

General Recommendations

General safety rules and warranty considerations for maintenance.

Lubrication

Instructions for lubricating pivot points, wheels, and springs.

Deck Care

Steps for cleaning the underside of the mower deck.

Engine Care

Key engine maintenance jobs and references to the engine manual.

Service

Blade Care

Instructions for removing, balancing, and servicing the cutting blade.

Off-Season Storage

Steps to prepare the mower for storage, including cleaning and lubrication.

Troubleshooting

Illustrated Parts List

MANUFACTURER'S LIMITED WARRANTY

How to Obtain Service

Steps and contact information for obtaining warranty service for the product.

Warranty Coverage Limitations

Cases where the limited warranty does not provide coverage.

State Law and Warranty Rights

Information on how state law affects warranty rights.

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