Murray 387002x92D Lawn Mower Manual

The Murray 387002x92D 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, durable steel deck, easy-start system, and rear-wheel drive. This manual covers safety, assembly, operation, maintenance, troubleshooting, and specifications. Always read and understand all instructions before use.

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

Features at a Glance

Key components: 190cc Briggs & Stratton engine, 21-inch steel cutting deck, rear bagger, mulch plug, side discharge chute, single-lever height adjustment, recoil start, 8-inch rear wheels.

Feature	Description
Engine	190cc Briggs & Stratton 4-cycle, OHV
Cutting Width	21 inches
Cutting Options	Mulch, Bag, Side Discharge (3-in-1)
Height Adjustment	Single-lever, 6 positions (1.5-3.75 inches)
Drive System	Rear-wheel drive
Start Type	Recoil pull-start
Deck Material	Durable steel
Wheels	8-inch rear, 7-inch front
Fuel Tank	1.0 quart capacity
Weight	Approximately 65 lbs

Assembly Instructions

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

Attach handle: Align lower handle with deck brackets, secure with bolts and wing nuts.
Install upper handle: Connect to lower handle, secure with provided hardware.
Attach grass bag: Hook bag frame onto rear deck brackets; ensure bag is secure.
Install side discharge chute: If using, attach to deck opening with retaining pin.
Add engine oil: Fill with SAE 30 detergent oil (check dipstick).
Add fuel: Use fresh unleaded gasoline (87 octane minimum).

WARNING! Do not add fuel or oil while engine is hot. Ensure all fasteners are tight before operation.

Safety Precautions

Always wear safety glasses, long pants, and sturdy shoes. Keep bystanders away.

Clear mowing area of stones, toys, and other objects.
Never mow wet grass or in poor visibility.
Do not remove safety devices or guards.
Stop engine and disconnect spark plug before unclogging or maintenance.
Do not allow children to operate mower.
Use extreme caution on slopes; mow across slopes, not up and down.

CAUTION! Gasoline is flammable. Store fuel in approved container away from ignition sources.

Specifications

Model: Murray 387002x92D
Engine: Briggs & Stratton 190cc, 4-cycle
Cutting Width: 21 inches
Cutting Height: 1.5 - 3.75 inches (6 positions)
Deck Material: Steel
Drive: Rear-wheel
Start System: Recoil
Fuel Type: Unleaded gasoline (87 octane min)
Oil Type: SAE 30 detergent (API service class SJ or higher)
Warranty: 2-year limited

Controls and Operation

Handle Controls: Drive control lever (bail), height adjustment lever, recoil starter grip.

Starting Engine: 1. Push primer bulb 3 times (cold engine). 2. Set throttle to FAST. 3. Pull recoil starter firmly. Stopping Engine: Release drive bail, move throttle to STOP. Drive Control: Squeeze bail against handle to engage drive; release to stop. Height Adjustment: Move single lever to desired position (1-6).

Cutting & Height Adjustment

Select cutting mode: Bagging (install bag), Mulching (install mulch plug), Side Discharge (install chute).

Adjust height before starting mower.
For best results, mow when grass is dry.
Do not cut more than 1/3 of grass height at one time.
Overlap cutting rows slightly for even cut.
Empty bag frequently to maintain performance.

Tip: Sharpen blade at least once per season for clean cut.

Engine Operation

Briggs & Stratton 190cc 4-cycle engine requires regular oil and air filter maintenance.

Check oil level before each use; change after first 5 hours, then every 50 hours.
Use fresh gasoline; add fuel stabilizer for storage over 30 days.
Clean air filter every 25 hours; replace if damaged.
Replace spark plug annually.
Never run engine without air filter.

WARNING! Engine parts are hot during/after operation. Allow to cool before touching.

Maintenance Schedule

Before each use: Check oil, inspect blade, clear deck of debris.

Interval	Task
Every 25 hours	Clean/replace air filter; check spark plug
Every 50 hours	Change engine oil
Season start	Sharpen/replace blade; check tire pressure
Season end	Drain fuel or add stabilizer; clean deck
As needed	Tighten bolts; lubricate wheels

CAUTION! Always disconnect spark plug wire before performing maintenance.

Storage Instructions

Prepare mower for off-season storage to prevent damage.

Drain fuel tank or add fuel stabilizer and run engine 5 minutes.
Change engine oil.
Clean underside of deck thoroughly.
Remove spark plug, add 1 tablespoon oil, pull starter slowly to coat cylinder.
Store in dry, covered area away from children.

CAUTION! Do not store with fuel in tank indoors or near open flame.

Warranty Information

Murray 387002x92D includes 2-year limited warranty covering defects in materials/workmanship. Warranty does not cover normal wear, misuse, improper maintenance, or commercial use. For warranty service, 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	Add fresh fuel; check oil level; clean/replace air filter.
Engine runs poorly	Dirty air filter, bad spark plug	Clean air filter; replace spark plug; check fuel.
Uneven cutting	Dull blade, uneven tire pressure	Sharpen/replace blade; inflate tires evenly.
Mower vibrates excessively	Loose blade, bent blade	Tighten blade bolt; replace bent blade.
Won't drive	Drive cable loose, belt worn	Adjust drive cable; replace drive belt.

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