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John Deere X350R Troubleshooting

John Deere X350R Engine Problems

Tractor engine will not start

No gasoline in tank - Add gasoline.
Wrong fuel grade - Use quality gasoline.
Stale fuel - Drain fuel and fill up fresh.
Fuel system clogged - Repair or replace.
Defective spark plug wires - Check the spark plug wires.
Faulty spark plug - Inspect ignition spark.
Fuel filter is dirty - Install new filter.
Defective safety switch - Replace if required.
Incorrect carburetor adjustment - Adjust carburetor idle mixture screw.
Check starter cranking RPM. Test compression.

Engine starts hard

Faulty spark plug - Check the spark and replace defective spark.
Problems with carburetor adjustment - Adjust as required.
Fuel lines are clogged - Clean fuel system components.
Throttle cable worn - Install new throttle cable.
Old or incorrect fuel - Pour quality fuel.
Electrical connection problems - Check and replace wires if necessary.
Starter problems - Check starter, repair or replace.

Rough running engine

Cooling fins blocked - Clean cooling fins.
Loose electrical connections - Check and restore defective connections.
Ignition system problems - Inspect spark plug and ignition system.
Choke cable sticks - Check and replace.
Air filter dirty - Clean or change air filter.

Engine stops or misses

Spark plug wear - Inspect spark plug wire.
Carburetor malfunction - Inspect and overhaul.
Ignition coil air gap incorrect - Check and adjust ignition coil air gap.

Engine overheating

Engine overloaded - Reduce loads.
Air intake screen blocked - Clean clogged components.
Too much or too little oil - Checking oil level and oil pressure.
Incorrect engine oil viscosity - Change oil.
Check internal bearing clearance.
Too Fast idle - Adjust carburetor idle mixture screw.

Engine will not idle

Spark plug not gapped correctly - Tighten the spark plug correctly.
Spark plug wear - Inspect the spark, replace if necessary.

JD X350R Engine knocks

Stale gasoline - Change fuel.
Engine overloaded - Reduce the load.
Lack of engine oil - Check oil level and add if necessary.
Low engine speed - Adjust the required speed.
Cylinder bore and rings worn out - Replace damaged parts.
Check for engine overheating from plugged cooling fins.
Check and adjust crankshaft end play.
Check for carbon build-up in combustion chamber.

Engine backfires

Inspect spark plug and change if required.
Check and adjust the choke.
Check and adjust carburetor.
Check and adjust ignition coil air gap.
Check inlet and outlet valves.
Check valve clearance, adjust if required.
Check flywheel key.

Insufficient engine power

Engine temperature too high - Clogged air filter element.
Engine oil overfilled - Excess oil needs to be drained.
Fuel pump broken - Testing fuel pump output.
Governor not work - Inspect and adjust governor.
Check and overhaul carburetor.
Test engine compression.

Engine gets too much gas

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

Exhaust with black smoke

Air cleaner element plugged - Inspect and clean.
Throttle not fully engaged - Inspecting and adjusting choke.
Check for correct main jet for elevation.

John Deere X350R Electrical Troubleshooting

Starter does not function

Blown main fuse - Installing new fuse.
Poor terminal connection - Inspect and clean terminals.
Battery discharged - Battery charging required.
Ignition lock problems - Replace the lock.
Damaged starter - Replace or repair.
Electrical wires are damaged - Connect wires.

Battery will not charge

Faulty cell in battery - Change the battery.
No contact between cable and battery terminal - Change or clean cable.

Lighting does not function

Light plug disconnected.
lamp defective.
Short-circuit in cable.

JD X350R Machine Troubleshooting

Tractor vibrates too much or rattles excessively

Attachment driven belt worn or damaged - Inspect and replace damaged belt.
Traction drive belt damage - Check and change worn belt.
Drive sheaves are dirty - Replace if necessary.
Cutting blade loose or unbalanced - Replace damaged blades.

Tractor doesn't move when engine runs

Parking brake holds the tractor - Release the park brake.
Bypass valve lever activated - Deactivate the bypass valve.
Loose lawnmower blades - Inspect and fasten securely if necessary.
Incorrect blade balancing - Check blade balancing.
Too much or too little oil - Fill transmission with oil.

John Deere X350R Mower Deck Troubleshooting

Discharge Chute Clogged

Speed too high - Need to reduce speed.
High grass - Adjust the mower to a lower cutting height.
Wet grass - Wait until later to cut.
Engine speed reduced - Adjusting carburetor for higher rpm.
Restricted air flow - Check engine speed.
Lack of cutting height - Adjust cutting settings.
Incorrect belt installation - Fit belt correctly.

Patches of grass uncut

Debris in cutting deck - Clean mower deck.
Damaged or worn blade - Installing new blade.
Mower deck low - Leveling the mower deck.
Grass bagger overfilled - Empty the grass bag.
Speed is very fast - Need to reduce speed.

Belt Slipping

Pulley is dirty - Need to clean the pulley.
Belt is loose - Install new belt.
No belt tension required - Check belt tension.

Mower vibrates

Mower deck clogged or in sheaves - Remove debris from the pulley or deck.
Pulley or belt faulty - Change worn parts.
Pulleys or belt misaligned - Inspect and align.
The blades are unbalanced - Balance blades correctly.

Blades scalp grass

Incorrect height cutting - Check and adjust height.
Mower wheel height incorrect - Adjust wheel heights correctly.
Insufficient tire pressure - Need to inflate tires.
Blades speed too fast - Balance mower speed.
Bent mower blades - Install new blades.

Uneven Cut

Deck level is too low - Leveling the mower deck.
Low tire inflation - Increase tire pressure.
Incorrect rollers height - Adjust mower deck wheels.
Speed too high - Don't use fast speed.
Mower blades blunt - Check for blade damage and replace if necessary.

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