________________________________________________________________________________________

Home / Lawn and Garden Tractors / John Deere Lawn Tractors / John Deere L111

John Deere L111 Troubleshooting

The John Deere L111 is a 2-wheel drive lawn tractor from L100 series. This model was manufactured between 2004 and 2006.

The John Deere L111 driveline components: a 40 cubic inches (656 cc) Briggs and Stratton 4-cycle V-twin cylinder OHV vertical-shaft air-cooled gasoline engine with a rated power of 20 Hp (14.8 kW), and Tuff Torq T40 belt-driven hydrostatic transmission with infinite forward and reverse gears.

The engine has a float-feed carburetor, full pressure lubrication, forced air cooling system, and electronic ignition system. Max. travel speed (forward and reverse): 5.5 mph (8.8 km/h) / 3.2 mph (5.1 km/h). The John Deere L111 was equipped with a manual steering system, disc brakes, 15x6.00-6 front tires, and 20x8.00-8 rear tires. The wheelbase is 49 inches (1240 mm).

The tractor is compatible with a 42" mid-mount 2-blade mower deck with cutting height of 1-4" (25-102 mm), seven cut positions, and mechanical lifting system.

Engine Troubleshooting
Engine starts up hard or will not start
Empty fuel tank - Fill fuel up
Low-quality gasoline - Use correct fuel grade
Fuel system clogged - Repair or replace
Spark plug wiring connection is defective - Inspect spark plug wiring connection, change or repair
Spark plug is defective - Change spark plug as required
Fuel filter is clogged - Replace fuel filter
Brake pedal not depressed - Press the brake pedal
Incorrect carburetor adjustment - Adjust carburetor idle mixture screw
Engine has low compression - Check cylinder block and replace defective parts
Throttle cable is adjusted incorrectly or damaged - Change cable or adjust properly
Engine runs roughly
Air intake grill is clogged - Clean and wash as required
Ignition system malfunction - Inspect ignition system and change failed components
Stuck or faulty throttle cable - Change or clean the cable
Air filter element is clogged - Replace or service air filter
Fuel pump is damaged or dirty - Clean or replace fuel pump
Engine starts but then stops
Defective spark plug - Install new spark plug
Carburetor is faulty or clogged - Service or change carburetor
Ignition coil is damaged - Ignition coil must be replaced
Damaged or weak valve springs - New valve springs need to be installed
Valves sticking - Valves must be cleaned
Engine overheating
Engine oil level is insufficient - Check oil level and add oil as required
Engine overloaded - Reduce engine load
Cooling fins are blocked - Need to wash or clean
Carburetor is running lean - Adjust carburetor properly
Ignition timing is wrong - Adjust ignition timing correctly
Improper valve setting - Set the valves correctly
Engine noise or knocking
Low octane fuel - Change fuel
Engine is overloaded - Load reducing is recommended
Engine oil level is insufficient - Add oil to the engine crankcase
Too low idle RPM - Adjustment required
Clogged or damaged fuel pump - Clean or install new fuel pump
Worn crankshaft or main bearings - Repair or replace defective parts
Valve clearance is improper - Adjust to proper valve clearance
Damaged piston rings or cylinder bore - Change faulty parts
Lack of engine power
Incorrectly adjusted or clogged carburetor - Adjust the carburetor properly or clean it
Air filter element is clogged - Service or change air filter
Clogged or damaged fuel pump - Test fuel pump and replace if necessary
Ignition failure - Check ignition and replace faulty components
Defective cylinder head gasket - Install new head gasket
Valves are burned or stuck - Service or change valves
Worn or defective push rod - Install a new push rod
Faulty cylinder block parts - Replace defective parts
Engine uses too much fuel
Choke doesn't open well - Adjust or replace choke cable
Carburetor main jet adjustment is incorrect - Adjust main jet as required
Loose or defective spark plug - Replace or tighten spark plug
Valves are stuck, worn, or burned - Clean or change valves
Worn piston, rings, or sleeve - Replace defective components
Excessive valve clearance - Adjustment procedure required
Excessive oil consumption
Gaskets or seals can be faulty - Replace worn parts to avoid leaks
Valve stems or guides are damaged - Need to replace the valves
Piston rings are defective or worn - Change piston rings
Damaged cylinder liner or piston - Inspect piston and liner, fit new components as necessary
Breather hose or pipe is plugged - Change or service


Hydrostatic Transmission Troubleshooting
Excessive HST transmission noise
Speed control pedal linkage is bent or not adjusted - Adjust or repair linkage
Excessive loading - Reduce the load is required
Low transmission oil level or contaminated oil - Add oil to the correct level or fill the transmission with fresh oil
Defective or worn transmission parts - Check transmission parts for damage or wear and replace if required
Hard to shift
Shift linkage is corroded or worn - Lubricate or replace linkage
Stuck or defective hydrostatic pump - Repair or replace pump
Worn or misadjusted transmission shift control parts - Adjust correctly or replace
Lack of power
Transmission oil level is low - Fill up the transmission oil
Worn or damaged drive sheave - Install a new sheave
Shifter linkage is faulty or not adjusted - Adjust correctly or replace linkage
Worn or unadjusted speed control linkage - Adjust or replace linkage
Transmission leakage
Broken transmission gaskets or seals - Install new seals or gaskets
Final drive shaft leaks - Shaft seals need to be changed
Cracked transmission case - Install a new transmission case

Mower Deck Troubleshooting
Mower vibrates too much
Damaged or clogged mower drive pulley - Clean or change pulley
Drive belt is defective or loose - Adjust belt tension or replace belt
Mower blades are not balanced or warped - Change or balance blades
Loose blade mounting bolts - Tighten it fast
Constant clogging of discharge chute
High ground speed - Use a lower speed
Long grass - Must be set to low cutting height
Reduced engine speeds - Choke is not fully opening
Cutting height is too low - Adjust mower to higher cutting height
Incorrect mower drive belt installation - Check drive belt for correct installation
Grass patches are not cut
Discharge area is clogged - Mower deck needs to be cleaned
Not sharp blades - Need a blade sharpening
Damaged or worn blades - Blades must be changed
Fast mowing speed - Select a lower speed
Mower cuts too low - Use correct cutting height
Filled bagger - Clean bagger
Blades are scalping the grass
Bumpy or unleveled lawn - Lawn needs to be leveled
Mower cuts too low - Use correct cutting height
High mowing speed - Select a lower speed
Deck level is not correct - Deck should be adjusted correctly
Blades are bent or worn - Replace the blades
Low tire inflation - Correct tire pressure
Uneven cut
Tires are not properly inflated - Inflate tires as required
Incorrect level of mower deck - Adjust mower deck level properly
Not sharp blades - Sharpen the blades
Worn or bent blades - Install new blades
Deck is plugged with grass - Need to clean the mower deck
Broken mower deck shell - Replace or rebuild mower deck
Bent or loose mower spindle - Spindle needs to be repaired or replaced

Electrical Troubleshooting
Battery does not charge
Electrical wire connections are corroded or loose Service or tighten connections
Battery terminal clamps are faulty - Terminal clamps should be changed
Worn-out battery - Battery replacement required
Starter motor cranks slow
Low battery voltage - Battery is drained, charge it
Battery is draining quickly - Service battery or replace it
Disconnected wires or corroded battery terminals - Check cables and clean or change terminals
Starter will not crank
Battery is drained or worn - Change or recharge battery
Battery cables are disconnected or improperly connected - Inspect cables and connect properly
Low battery output voltage - Charge the battery
Improperly gapped or dirty spark plug - Clean, gap or replace spark plug
Starter motor or solenoid is defective - Starter/solenoid should be replaced

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

Lawn and Garden Tractors Technical Specs
JOHN DEERE 314 JOHN DEERE D130 JOHN DEERE E150 JOHN DEERE L118
KUBOTA G5200 KUBOTA GR2100 KUBOTA T1400 KUBOTA T1560
FORD 140 FORD GT95 FORD LGT14D FORD LGT165
CRAFTSMAN GT5000 CRAFTSMAN LT2500 CRAFTSMAN T2000 CRAFTSMAN YT3000
CUB CADET 782D CUB CADET 1811 CUB CADET 2186 CUB CADET LT1045
HUSQVARNA CTH151 HUSQVARNA TC138 HUSQVARNA TS142T HUSQVARNA GT2254