Murray MYT4219000 Lawn Mower Manual

The Murray MYT4219000 is a 21-inch push lawn mower featuring a 190cc Briggs & Stratton engine, 3-in-1 mulching/bagging/side discharge capability, single-lever height adjustment (6 positions from 1.5" to 4"), durable steel deck, easy-start system, large rear wheels for maneuverability, and a 2.1 bushel grass bag. Below are key sections for safety, features, assembly, operation, maintenance, troubleshooting, and specifications.

1. Features at a Glance 2. Assembly Instructions 3. Safety Precautions 4. Specifications 5. Controls and Operation 6. Cutting Height Adjustment 7. 3-in-1 Function Setup 8. Maintenance Schedule 9. Storage Guidelines 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: 190cc Briggs & Stratton engine, 21-inch steel cutting deck, rear grass bag, height adjustment lever, discharge chute, and push handle.

Feature	Description
Engine	190cc Briggs & Stratton, 4-cycle, easy-start system
Cutting Width	21 inches
Cutting Deck	Durable steel construction
Cutting Options	3-in-1 (Mulch, Bag, Side Discharge)
Height Adjustment	Single lever, 6 positions (1.5" to 4")
Grass Bag Capacity	2.1 bushels
Wheels	Large rear wheels for easy maneuverability
Handle	Foldable push handle with comfort grip
Starter	Recoil starter
Fuel Tank	0.5 gallon capacity

Assembly Instructions

Unpack all parts and inspect for damage. Assembly requires basic tools (included).

Attach the handle: Align handle brackets with deck mounts, secure with provided bolts and wing nuts.
Install the grass bag: Attach bag support frame to rear deck hooks, then hang the fabric bag.
Attach the discharge chute: Secure the chute to the side discharge opening with the provided pin or bolt.
Install the height adjustment lever: Connect to the linkage on the deck as per diagram.
Check wheel installation: Ensure all wheels are securely fastened and rotate freely.

WARNING! Do not attempt to start the engine before completing assembly. Ensure all fasteners are tight.

Safety Precautions

Always operate the mower with care to prevent injury or damage.

Read manual thoroughly before use.
Clear mowing area of stones, sticks, and debris.
Wear sturdy shoes, eye protection, and long pants.
Do not mow when grass is wet.
Never allow children or pets in the area during operation.
Stop engine and wait for blade to stop before unclogging or adjusting.
Use only outdoors in well-ventilated areas.
Refuel only when engine is cool, outdoors.

DANGER! The rotating blade can cause severe injury. Keep hands and feet away from deck at all times.

Specifications

Model: Murray MYT4219000
Engine: Briggs & Stratton 190cc, 4-cycle
Cutting Width: 21 inches
Cutting Height Range: 1.5" - 4" (6 positions)
Deck Material: Steel
Grass Bag Capacity: 2.1 bushels
Wheels: Front: 8", Rear: 10"
Weight: Approximately 65 lbs
Fuel Type: Unleaded gasoline (87 octane or higher)
Oil Type: SAE 30 (summer), check manual for alternatives

Controls and Operation

Handle Controls: Throttle lever, drive control bar (if self-propelled model), height adjustment lever.

Starting the Engine:

Check oil and fuel levels.
Move throttle lever to FAST position.
Prime the engine (if equipped) by pressing primer bulb 3 times.
Pull recoil starter handle firmly.

Stopping the Engine: Move throttle lever to STOP position.

Operating Tips: Mow at a steady pace, overlap passes slightly for even cut. Avoid mowing in reverse.

Cutting Height Adjustment

Single-lever adjustment changes height for all four wheels simultaneously.

Stop engine and ensure blade is not rotating.
Pull adjustment lever towards wheel to unlock.
Move lever to desired height setting (1-6).
Release lever to lock in position.
Check that all wheels are at same height.

Tip: For first mow of season, set to highest setting. Gradually lower for subsequent mows.

3-in-1 Function Setup

Configure for mulching, bagging, or side discharge.

Mulching: Install mulch plug (if provided) over discharge opening. Blade must be mulching type.
Bagging: Attach grass bag to rear deck. Ensure discharge chute is removed or closed.
Side Discharge: Attach discharge chute to side opening. Ensure bag is removed.

WARNING! Always stop engine before changing cutting function. Never operate without discharge chute, mulch plug, or bag properly installed.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Task	Frequency
Check engine oil level	Before each use
Clean underside of deck	After each use
Check blade sharpness/balance	Every 25 hours
Replace air filter	Every season or 25 hours
Change engine oil	First 5 hours, then every 50 hours
Replace spark plug	Every 100 hours
Lubricate wheel bearings	Every season
Check all bolts and fasteners	Monthly

Storage Guidelines

Proper storage prevents damage and prepares mower for next season.

Drain fuel tank or add fuel stabilizer.
Run engine until it stops to clear carburetor.
Change oil if due.
Clean entire mower, especially underside.
Remove spark plug, add teaspoon of oil to cylinder, pull starter slowly to coat.
Store in clean, dry place, protected from weather.
Cover mower to prevent dust accumulation.

CAUTION! Gasoline left in tank over 30 days can degrade and damage engine components.

Warranty Information

Murray mowers are backed by a limited warranty. The MYT4219000 includes a 2-year limited warranty for residential use. Proof of purchase required. Warranty covers defects in materials and workmanship under normal use. Not covered: normal wear, misuse, neglect, improper maintenance, commercial use. For warranty service, contact Murray Customer Service at 1-800-800-7310 or visit www.murray.com. Keep your receipt and model/serial numbers (located on deck near rear wheels).

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old fuel, clogged air filter, spark plug	Check fuel level; use fresh gas; clean/replace air filter; check spark plug.
Engine runs poorly	Dirty air filter, old fuel, clogged carburetor	Clean air filter; drain old fuel; clean carburetor.
Uneven cutting	Dull blade, uneven tire pressure, deck clogged	Sharpen/balance blade; check tire pressure; clean deck.
Excessive vibration	Loose blade, bent blade, debris in blade area	Tighten blade bolt; replace bent blade; clean under deck.
Grass not discharging	Wet grass, deck clogged, engine speed too low	Mow when dry; clean deck; run engine at full throttle.
Wheels not turning freely	Debris in axles, lack of lubrication	Clean axles; lubricate wheel bearings.

Service: For technical support, call 1-800-800-7310 or visit www.murray.com. For engine-specific issues, contact Briggs & Stratton at 1-800-233-3723.