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John Deere X350 Troubleshooting

John Deere X350 Engine Problems

Tractor engine will not start

Gas tank is empty - Fill fuel up.
Low-quality gasoline - Change gasoline.
Stale gas - Drain fuel and add fresh.
Clogged fuel system - Remove clogging.
Spark plug wires are damaged - Check wires connection.
Spark plug not working - Change as required.
Clogged fuel filter - Change fuel filter.
Brake pedal not pushed down - Push the brake pedal down.
Carburetor malfunction - Check and repair as required.
Test fuel transfer pump output. Test compression.

Engine long starting

Spark plug failed - Check the spark and replace defective spark.
Carburetor is dirty - Wash, clean and adjust.
Dirt in fuel lines - Clean fuel system components.
Choke cable not adjusted properly - Checking and adjusting.
Stale or incorrect fuel - Fill in proper fuel.
Electrical connections are damaged - Checking and replace wiring if necessary.
Starter fault - Test starter and repair if necessary.

Engine runs roughly

Cooling fins blocked - Clean and wash cooling fins.
Electrical connections damaged - Inspect and restore defective contacts.
Ignition adjustment lost - Check spark plug and ignition.
Choke cable sticking - Repair or replace.
Air cleaner element plugged - Replace air cleaner.

Engine misses

Spark plug worn out - Check spark plug wire for wet or deteriorated condition.
Carburetor malfunction - Inspect and overhaul.
Ignition coil not working - Replace defective component.

JD X350 Engine overheating

Engine runs under excessive load - Reduce the load.
Cooling fins or air inlet plugged - Clean clogged components.
Engine oil high or too low - Add or drain oil.
Incorrect engine oil viscosity - Change engine oil.
Check connecting rod to crankshaft bearing clearance.
Too Fast idle - Adjusting fast idle speed.

Engine does not idle

Spark plug not gapped correctly - Tighten the spark plug correctly.
Spark plug wear - Test spark and change as required.

Engine knocking

Low octane fuel - Change fuel.
Engine overloaded - Reduce loads.
Low oil level - Add engine oil.
Low engine speed - Adjust carburetor.
Cylinder bore and rings are wear - Replace damaged parts.
Check for engine overheating from plugged cooling fins.
Checking and adjusting valve clearance.
Check for carbon build-up in combustion chamber.

Engine backfires

Checking spark plug.
Adjust or change the throttle.
Adjust carburetor idle mixture screw.
Checking and adjusting ignition coil air gap.
Inspect for sticking valves.
Test valve clearance, adjusting if necessary.
Inspect flywheel key.

Engine does not develop full power

Engine overheating - Replace air cleaner.
Engine oil overfilled - Drain excess oil.
Defective fuel pump - Testing fuel pump output.
Governor not work - Inspect and adjust governor.
Inspect carburetor for plugged passages.
Check engine compression.

Engine uses too much fuel

Insufficient choke opening - Inspect choke cable.
Carburetor malfunction - Adjust carburetor.

Emits black smoke

Air cleaner is dirty or oiled - Check and clean.
Choke not fully engaged - Inspecting and adjusting throttle.
Check oil fill dipstick O-ring seal or cracked cap.

JD X350 Electrical System Troubleshooting

Starter does not run

Main fuse malfunction - Fit new fuse.
Poor terminal connection - Clean terminals.
Battery discharged - Need to charge the battery.
Ignition switch is damaged - Installing new lock.
Starter is damaged - Repair or replace.
Wiring damage - Change wiring.

Battery does not charge

One or more battery cells dead - Replace the battery.
Bad contact between battery pole and cable - Change or clean cable.

Lighting does not function

Light plug disconnected.
Check light bulbs.
Short circuit in electrical wires.

John Deere X350 Machine Problems

Tractor vibrates excessively

Equipment drive belts worn out - Inspect and change damaged belt.
Traction drive belt worn - Install new belt.
Dirt on driven pulley - Change if necessary.
Mower blades malfunction - Change as needed.

The engine is running but tractor is not moving

The parking brake is locked - Release the parking brake.
Bypass valve lever is engaged - Deactivate the bypass valve.
Mower blade could be loose - Tighten mower blades.
Improper blade balance - Check blades for damage and balance as required.
Lack of oil in transmission - Fill transmission with oil.

John Deere X350 Lawn Mower Troubleshooting

Plugged discharge chute

Lawn mower is driving too fast - Need to reduce speed.
Grass too long - try operating a short cutting height.
Grass too wet - Wait until later to cut.
Engine speed reduced - Adjust throttle to full opening.
Restricted air flow - Adjust to high revs.
Cutting too low - Use higher cutting.
Improper belt installation - Fit belt correctly.

Lawn mower leaving uncut grass

Cutting deck clogging - Deck cleaning required.
Damaged blade - Check and replace the blade.
Deck level is too low - Checking and adjust deck height.
Grass bag too full - Empty bagger.
Traveling too fast - Need to reduce speed.

Belt slips

Dirt in the sheaves - Check and clean.
Drive belt damage - Fit new belt.
Belt tension problems - Adjust belt tension.

The lawn mower vibrates excessively

Mower clogged or in pulleys - Remove debris from the pulley or deck.
Belt or sheaves faulty - Change defective components.
Belt or sheaves out of centering - Inspect and centering.
Blades out of balance - Balance blades properly.

Blade strips grass

Wrong cutting height - adjust cutting height.
Mower wheels not adjusted correctly - Adjust mower deck wheels.
Low tire inflation - Need to inflate tires.
Blades speed too fast - Correct blades speed.
Bent mower blades - Remove bent blade and install new one.

Uneven Cut

Mower deck low - Adjust and level the deck height.
Low tire inflation - Tire pressure required.
Incorrect rollers height - Adjust mower deck wheels.
Traveling too fast - Choose recommended speed.
Blades worn - Installing 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