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John Deere LA165 Lawn Tractor Problems

John Deere LA165 Engine Problems

Briggs and Stratton engine fails to start

Gas tank is empty - Fill gasoline up.
Wrong grade of gasoline - Use correct gasoline grade.
Stale gas - Drain fuel and add fresh.
Air or water in fuel system - Remove water or air from fuel system.
Spark plug wire is loose or disconnected - Check wires connection.
Spark plug not working - Replace as required.
Fuel filter is clogged - Fuel filter needs to be replaced.
Defective safety switch - Replace if required.
Carburetor problems - Carburetor diagnostics required.
Inspect starter cranking speed RPM. Test crankcase vacuum.

Engine starts hard

Spark plug fail - Check the spark and replace defective spark.
Wrong carburetor adjustment - Adjusting carburetor correctly.
Fuel pipes are clogged - Remove clogging from fuel pipes.
Choke cable damaged - Replacement required.
Stale or improper fuel - Drain and add quality fuel.
Loose or corroded electrical connections - Checking and replace.
Failing starter - Test starter and repair if necessary.

Engine runs roughly

Cooling fins are clogged - Clean and wash cooling fins.
Electrical contacts are damaged - Check and restore defective connections.
Incorrect ignition settings - Test ignition and spark plug.
Choke cable sticking - Repair or replace.
Air filter dirty - Change air cleaner.

Engine misses

Spark plug fail - Inspect spark plug wire.
Carburetor malfunction - Inspect and overhaul.
Ignition coil not working - Replace defective component.

Briggs and Stratton engine overheating

Engine overloaded - Reduce loads.
Air intake screen clogged - Clean dirty components.
Engine oil low or too high - Inspect oil pump for damage or worn.
Incorrect engine oil viscosity - Change engine oil.
Inspect crankshaft to main bearing clearance.
Idle speed problems - Adjust carburetor.

Engine does not idle

Poor spark plug contact - Tighten the spark plug correctly.
Spark plug wear - Check the spark and change defective spark.

Engine knocks

Low octane fuel - Use proper fuel.
Engine overload - Reduce the load.
Low oil level - Add to required level.
Engine speed too low - Adjust carburetor as needed.
Cylinder bore or piston rings are damaged - Replace damaged parts.
Inspect for engine overheats from clogged cooling fins.
Checking and adjusting valve clearance.
Check for loose or worn connecting rods.

Briggs and Stratton engine back-fire

Inspect spark plug and change if required.
Adjust or replace throttle.
Adjust carburetor idle mixture screw.
Inspect and adjust ignition coil air gap.
Inspect inlet and outlet valves.
Check and adjust valve clearance.
Check flywheel key.

Engine does not develop full power

Engine overheating - Change air filter.
Excess engine oil - Drain excess oil.
Fuel pump problems - Inspect and repair fuel pump.
Governor is damage - Repair or replace governor.
Check and overhaul carburetor.
Check engine compression.

Engine gets too much gas

Insufficient throttle opening - Replace throttle cable.
Carburetor is not working properly - Check carburetor float adjustment.

Black exhaust smoke

Air cleaner element plugged - Clean or replace filter.
Choke partially engaged - Inspect and adjust choke.
Checking and adjusting carburetor float level.

John Deere LA165 Electrical Troubleshooting

Starter motor will not turn engine

Blown main fuse - Fit new fuse.
Battery contacts are corroded - Inspect and clean contacts.
Weak battery - Battery charging required.
Ignition lock defective - Change switch.
Faulty starter - Replace or repair.
Wires disconnected - Reconnect wires.

Battery does not charge

Battery cells fails - Install new battery.
Battery terminals and cables are dirty - Clean or replace cable.

Lighting does not function

Light connector defective - Replace.
Loose or burned out bulb - Install new bulb.
Short circuit in electrical wires - Replace damaged wires.

John Deere LA165 Mechanical Troubleshooting

Excessive tractor vibration

Implements driven belt damaged or worn - Belt replacement required.
Worn traction drive belt - Installing new driven belt.
Drive sheaves are dirty - Installing a new pulley.
Bent cutting blade or no balance - Tighten and balance blade.

The engine is running but tractor is not moving

Parking brake is applied - Release the parking brake.
Bypass valve lever is engaged - Deactivate the bypass valve.
Mower blade could be loose - Inspect and fasten securely if necessary.
Incorrect blade balance - Balance the blades correctly.
Transmission oil too low - Add oil to the transmission.

John Deere LA165 Lawnmower Problems

Plugged discharge chute

Speed too high - Operate the mower at low speed.
High grass - Adjust cutting height.
Grass too wet - Do not mow when grass is wet.
Engine is running at too low speed - Open throttle wide.
Loss of airflow - Check engine rpm.
Low cutting height - Adjust cutting settings.
Belt is loose - Reinstall the belt properly.

Lawn mower leaving uncut grass

Debris in mower deck - Need to clean the mower deck.
Blade wornout - Sharpen the blade or install a new one.
Mower deck low - Level mower deck.
Grass bag too full - Empty bagger.
Ground speed too fast - Choose recommended speed.

Slipping drive belt

Debris in sheaves - Need to clean the pulley.
Belt is loose - Fit new belt.
Belt tension problems - Check belt tension.

Mower vibrates

Debris in mower deck or in pulleys - Clean pulley and deck from debris.
Damaged pulleys or belt - Replace defective parts.
Belt or pulleys no adjustment - Check and centering.
The blades are unbalanced - Blades need balancing.

Blades scalp grass

Incorrect height cutting - Set the correct cutting height.
Mower height wheels not adjusted - Adjust mower deck wheels.
Tires inflated insufficient - Inflate tires as required.
Faster mower blade speeds - Blade speed required.
Blades are bent - Install new blades.

Uneven cutting results

Mower deck not leveled properly - Checking and adjust deck height.
Tire pressure unequal - Increase tire pressure.
Wrong rollers position - Adjust front or back wheel height.
Speed too high - Use slower speed.
Mower blades dull - Install new blade.

JOHN DEERE TRACTORS ATTACHMENTS
420	430	455	790	990
X300	X320	X330	X350	X475
X485	X500	X540	X570	X590
X700	X720	X738	X758	1023E
2025R	2210	2520	3025E	3032E
3038E	3038R	3039R	3046R	3203
3320	3520	4052R	4066R	4100
4105	4115	4200	4310	4320
4400	4410	4520	4600	4720

JD TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R