Murray YARD KING EYK15540GF Lawn Mower Manual

The Murray YARD KING EYK15540GF is a 155cc gas-powered push lawn mower featuring a 40-inch cutting deck, 3-in-1 mulching/bagging/side-discharge capability, 6-position height adjustment, Briggs & Stratton engine with easy-start system, durable steel deck, large rear wheels for maneuverability, ergonomic handle with controls, and washout port for easy cleaning. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

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 Discharge System 8. Maintenance Schedule 9. Storage Guidelines 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: Briggs & Stratton 155cc engine, 40-inch steel cutting deck, 3-in-1 discharge system, 6-position height adjustment, washout port, ergonomic handle with controls.

Feature	Description
Engine	Briggs & Stratton 155cc, 4-cycle, easy-start system
Cutting Width	40-inch steel deck for efficient mowing
Cutting Height	6-position adjustment (1.5-4 inches)
Discharge System	3-in-1: Mulch, Bag, Side-discharge
Wheels	Large rear wheels for easy maneuverability
Handle	Ergonomic design with adjustable height
Washout Port	For easy deck cleaning after use
Fuel Tank	1.0-gallon capacity
Starter	Recoil start system
Blade Type	High-lift steel blade for optimal grass lift

Assembly Instructions

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

Attach handle: Secure upper and lower handle sections with provided bolts.
Install wheels: Attach all four wheels to axles using washers and retaining clips.
Connect control cables: Route throttle and blade control cables along handle.
Install discharge chute: Attach side-discharge chute if using side-discharge mode.
Add engine oil: Fill with SAE 30 detergent oil (check dipstick for level).
Add gasoline: Use fresh unleaded gasoline (87 octane minimum).

WARNING! Wear gloves during assembly. Ensure all bolts are tightened securely before operation.

Safety Precautions

Always follow safety guidelines to prevent injury.

Read manual thoroughly before operation.
Wear protective equipment: safety glasses, long pants, sturdy shoes.
Clear mowing area of debris, rocks, and toys.
Never operate without proper guards or discharge chute in place.
Stop engine and disconnect spark plug before maintenance.
Do not mow on steep slopes (over 15 degrees).
Keep children and pets away during operation.

CAUTION! Gasoline is flammable. Refuel outdoors with engine off and cool.

Specifications

Model: Murray YARD KING EYK15540GF
Engine: Briggs & Stratton 155cc, 4-cycle
Cutting Width: 40 inches
Cutting Height: 1.5-4 inches (6 positions)
Deck Material: Powder-coated steel
Discharge Options: Mulch, Bag, Side-discharge
Fuel Capacity: 1.0 gallon
Oil Capacity: 20 oz (SAE 30)
Wheel Size: Front: 8-inch, Rear: 10-inch
Weight: 85 lbs (approx.)

Controls and Operation

Handle controls: Throttle lever, Blade engagement lever, Drive control bar (if self-propelled model).

Starting Procedure:

Check oil and fuel levels.
Prime engine (3-5 presses on primer bulb).
Set throttle to FAST position.
Pull recoil starter firmly until engine starts.
Allow engine to warm up for 30 seconds.

Stopping: Release blade control, move throttle to STOP, wait for blade to stop completely.

Cutting Height Adjustment

Adjust all four wheels simultaneously for even cutting.

Stop engine and ensure blade is disengaged.
Locate height adjustment lever near each wheel.
Move lever to desired position (1=lowest, 6=highest).
Ensure all wheels are set to same position.
Test mow small area to verify height.

Tip: For first mow of season, set to highest position and gradually lower.

3-in-1 Discharge System

Configure for mulching, bagging, or side-discharge.

Mulching: Install mulch plug; blade converts clippings to fine particles.
Bagging: Attach grass bag to rear bracket; ensure bag is empty before mowing.
Side-discharge: Install discharge chute; direct clippings away from work area.

WARNING! Always stop engine before changing discharge configuration.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Maintenance	Frequency
Check engine oil level	Before each use
Clean under deck	After each use
Sharpen/replace blade	Every 25 hours or when dull
Change engine oil	First 5 hours, then every 50 hours
Replace air filter	Every 25 hours or as needed
Replace spark plug	Every 100 hours or annually
Check tire pressure	Monthly

Storage Guidelines

Proper storage prevents damage and extends mower life.

Clean thoroughly: Remove grass clippings from deck and undercarriage.
Drain or stabilize fuel: For long-term storage, add fuel stabilizer or drain tank.
Change oil: Fresh oil prevents corrosion during storage.
Remove spark plug: Add teaspoon of oil to cylinder and pull starter slowly.
Store in dry, covered area away from moisture.

CAUTION! Never store mower with fuel in tank near open flames or heat sources.

Warranty Information

Murray YARD KING EYK15540GF comes with a 2-year limited warranty covering defects in materials and workmanship. Warranty does not cover normal wear, misuse, or lack of maintenance. For warranty claims, contact Murray customer service at 1-800-800-7310 or visit www.murray.com. Keep original receipt as proof of purchase.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old gas, clogged filter	Check fuel level; use fresh gas; clean/replace air filter.
Poor cutting performance	Dull blade, low engine speed	Sharpen/replace blade; set throttle to FAST.
Uneven cutting	Uneven tire pressure, worn blade	Check tire pressure; balance or replace blade.
Excessive vibration	Loose blade, debris under deck	Tighten blade bolt; clean under deck.
Grass not discharging	Wet grass, clogged deck	Mow when grass is dry; clean discharge area.
Engine stalls frequently	Dirty carburetor, old fuel	Clean carburetor; use fuel stabilizer.

Service: For technical support, call 1-800-800-7310 or visit www.murray.com