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John Deere 190C Lawn Tractor Problems

John Deere 190C Engine Troubleshooting

Briggs and Stratton engine does not start

Empty fuel tank - Fill gasoline up.
Improper fuel grade - Change fuel.
Stale gas - Drain gasoline and add fresh.
Clogged fuel system - Remove clogging.
Defective spark plug wires - Check wires connection.
Faulty spark plug - Change as required.
Plugged fuel filter - Fuel filter needs changing.
Faulty safety switch - Change damaged switch.
Carburetor problems - Carburetor diagnostics required.
Test fuel transfer pump output. Test compression.

Engine starts hard

Spark plug fail - Test spark and change as required.
Carburetor settings incorrect - Adjusting as required.
Dirt in fuel lines - Service required.
Worn throttle cable - Replace as required.
Stale or incorrect fuel - Fill in proper fuel.
Electrical connection problems - Inspect and replace wiring as needed.
Starter fault - Check the starter and replace defective components.

Engine runs unevenly

Cooling fins plugged - Remove dirt from cooling fins.
Electrical contacts are damaged - Inspect and replace defective contacts.
Incorrect ignition settings - Check ignition system and adjust as required.
Choke cable sticks - Repair or replace.
Air filter dirty - Replace air cleaner.

Engine stops or misses

Spark plug wear - Inspect spark plug wire.
Carburetor malfunction - Inspect and overhaul.
Ignition coil defective - Test ignition coil and replace if necessary.

Briggs and Stratton engine overheating

Engine runs under excessive load - Reduce loads.
Air intake screen clogged - Clean clogged components.
Too little or too much oil - Checking oil level and oil pressure.
Incorrect engine oil viscosity - Change oil.
Check internal bearing clearance.
Idle speed problems - Adjust fast idle.

Engine will not idle

Spark plug is loose - Adjust spark plug gap.
Spark plug malfunction - Test spark and replace as required.

Engine knocking

Low octane fuel - Use proper fuel.
Engine overloaded - Reduce the load.
Low oil level - Add engine oil.
Low engine speed - Adjust carburetor as needed.
Cylinder bore or piston rings are damaged - Replace defective components.
Check for engine overheating from plugged cooling fins.
Checking and adjusting valve clearance.
Inspect for loose or wear connecting rods.

Briggs and Stratton engine back-fire

Inspect spark plug and change if required.
Adjust or change the choke.
Checking and adjusting carburetor.
Checking and adjusting ignition coil air gap.
Check for sticking valves.
Checking and adjusting valve clearance.
Inspecting flywheel key.

Loss of power

Engine overheats - Air cleaner element plugged.
Excess engine oil - Drain excess oil.
Faulty fuel pump - Repair or replace fuel pump.
Governor not work - Checking and adjusting governor.
Check carburetor float adjustment.
Test engine compression.

Engine getting too much fuel

Insufficient choke opening - Replace throttle cable.
Carburetor is not adjusted - Checking and adjusting carburetor.

Exhaust with black smoke

Air cleaner element plugged - Clean or replace filter.
Throttle is partially engaged - Replace or repair choke.
Check oil fill dipstick O-ring seal or cracked cap.

John Deere 190C Electrical System Troubleshooting

Starter does not run

Blown fuse - Fit new fuse.
Terminals are severely corroded and heat up - Clean terminals.
Low charging voltage - Need to charge the battery.
Ignition switch defective - Installing new lock.
Damaged starter - Replace or repair.
Wiring disconnected - Connect wires.

Battery doesn't charge

Dead cell in the battery - Change the battery.
Battery terminals and cables are dirty - Clean or change cable.

Lights do not work

Light plug disconnected.
lamp defective.
Short circuit in electrical wires.

John Deere 190C Machine Troubleshooting

The machine vibrates

Equipment driven belt worn out - Check and change worn belt.
Traction drive belt damage - Check and replace belt.
Drive pulley is dirty - Fit new pulley.
Cutting blade loose or unbalanced - Change defective blades.

Tractor will not move with engine running

Parking brake is applied - Release the park brake.
Bypass valve lever in the push position - Disengage the bypass valve lever.
Loose lawnmower blades - Fasten the blades securely.
Incorrect blade balancing - Check blades for damage and balance as required.
Low transmission oil - Add oil to the transmission.

John Deere 190C Lawn Mower Problems

Discharge Chute Plugged

Traveling too fast - Choose recommended speed.
Grass has grown too long - Adjusting cutting height.
Wet grass - Wait until later to cut.
Engine is running at too low speed - Engine speed must be increased.
Lack of air flow - Check engine rpm.
Cutting too low - Adjust to higher cutting.
Belt fitted incorrectly - Reinstall the belt properly.

Streaking of uncut grass

Mower's cutting deck is clogged - Deck cleaning required.
Damaged blade - Sharpen the blade or install a new one.
Deck too low - Deck leveling required.
Grass bagger overfilled - Empty the grass bag.
Speed is very fast - Use slower speed.

Belt Slipping

Debris in sheaves - Pulley cleaning required.
Belt is damaged - Inspect and replace worn belt.
Belt tension problems - Belt tension needs to be adjusted.

Excessive mower vibration

Mower deck clogged or in sheaves - Remove debris from the pulley or deck.
Damaged mower belt or pulleys - Replace worn parts.
Belt or sheaves no adjustment - Check and centering.
Improper blade balancing - Balance blades correctly.

Blades scalping grass

Incorrect height cutting - Set the correct cutting height.
Mower wheel height incorrect - Adjust rear or front wheel height.
Tires inflated insufficient - Check and inflate the tires.
Faster mower blade speeds - Adjust the speed of blades.
Bent blades during operation - Remove bent blade and fit new one.

Uneven cutting results

Deck too low - Adjust and level the deck height.
Low tire pressure - Need to inflate tires.
Incorrect rollers height - Adjust front or back wheel height.
Ground speed too fast - Use slower speed.
Blades worn - Sharpen or replace 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