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John Deere X135R Troubleshooting
The
John Deere X135R is a 2-wheel drive lawn tractor from X100 series. This model
was manufactured from 2013 to 2025. The driveline consists of 40.1 cu.in (656
cc) Briggs and Stratton 4-cycle V-twin cylinder OHV vertical shaft air-cooled
gasoline engine with a rated power of 11.8 Hp (9 kW), and Tuff Torq K46CY
hydrostatic transmission with infinite forward and reverse gears.
The John Deere X135R is equipped with a manual steering system, electric
PTO clutch, disc brakes, 15x6.00-6 front tires, and 18x8.50-8 rear
tires. The operating weight is 514 lbs (233 kg). The John Deere X135R
tractor is compatible with a 42" mid-mount 2-blade rear-discharge mower
deck with a cutting height of 1.0-3.5" (25-90 mm) and mechanical lift
system.
| Engine Troubleshooting |
| Engine starts hard or doesn't start |
| Empty fuel tank - Fill gasoline up |
| Wrong fuel grade - Use correct fuel grade |
| Air trapped in fuel system - Bleed air |
| Disconnected or loose spark plug wire - Check spark plug wiring connection, repair or change |
| Damaged spark plug - Change spark plug as required |
| Clogged fuel filter - Replace fuel filter |
| Brake pedal not depressed - Press the brake pedal |
| Carburetor is clogged - Clean the carburetor |
| Bad engine compression - Inspect cylinder block and replace worn components |
| Worn or improperly adjusted choke cable - Replace cable or adjust properly |
| Air intake screen is plugged - Wash or clean as required |
| Ignition system malfunction - Check ignition system and replace faulty parts |
| Throttle cable is stuck or defective - Service or change the cable |
| Plugged air filter - Clean or change air filter |
| Fuel pump is defective or dirty - Clean or install new fuel pump |
| Engine starts but stops suddenly |
| Faulty spark plug - Spark plug need to be replaced |
| Dirty or faulty carburetor - Service or change carburetor |
| Damaged ignition coil - Install a new ignition coil |
| Valve springs are broken or bad - Replace valve springs |
| Stuck valves - Service the valves |
| Engine oil insufficient - Need to add engine oil |
| Excessive engine load - Reduce engine load |
| Plugged cooling fins - Clean and wash as required |
| Carburetor is running lean - Adjust carburetor properly |
| Ignition timing is incorrect - Adjust ignition timing correctly |
| Valve setting is wrong - Adjust valves correctly |
| Abnormal engine noise or knocking |
| Stale fuel - Change gasoline |
| Engine is overloaded - Reduce the load |
| Engine oil insufficient - Check and refill engine oil |
| Wrong adjustment of low idle speed - Test and adjust |
| Dirty or faulty fuel pump - Inspect fuel pump and change as required |
| Worn crankshaft or main bearings - Repair or replace defective parts |
| Valve clearance is wrong - Need to adjust valve clearance |
| Cylinder bore or piston rings are damaged - Change faulty components |
| Improperly adjusted or dirty carburetor - Service or properly adjust carburetor |
| Plugged air filter - Replace or clean air filter |
| Dirty or damaged fuel pump - Inspect fuel pump and change as required |
| Defective ignition - Check ignition and replace faulty components |
| Damaged cylinder-head gasket - Install new cylinder head gasket |
| Valves are burned or stuck - Replace or service valves |
| Push rod is worn or bent - Push rod needs to be changed |
| Cylinder block components are worn - Change defective components |
| Engine using too much gasoline |
| Throttle opening is not full - Adjust or change throttle cable |
| Carburetor main jet is incorrectly adjusted - Adjust main jet as required |
| Loose or defective spark plug - Tighten or replace spark plug |
| Worn, stuck, or burned valves - Replace or clean valves |
| Worn sleeve, rings, or piston - Change defective components |
| Improper valve clearance - Check and adjust |
| Excessive oil consumption |
| Defective seals or gaskets - To repair leaks, replace worn parts |
| Valve stems and guides are worn - Valves need to be changed |
| Worn or broken piston rings - Replace piston rings |
| Piston or cylinder liner is damaged - Inspect liner and piston, fit new parts as necessary |
| Plugged breather pipe or hose - Clean or replace |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission makes excessive noise |
| Defective or not adjusted speed control pedal linkage - Repair or adjust linkage |
| Excessive loading - Reduce loading |
| Low transmission oil level or contaminated oil - Change transmission oil or top up to proper level |
| Defective or worn transmission parts - After disassembling and inspection, change defective components |
| Shift linkage is stuck or worn - Clean or replace linkage |
| Hydrostatic pump is stuck or worn - Repair or replace pump |
| Faulty or misadjusted transmission shift control parts - Adjust correctly or replace |
| Insufficient transmission oil - Fill the transmission housing with oil |
| Drive pulley is defective or worn - Change pulley |
| Misadjusted or faulty shifting linkage - Replace or adjust linkage |
| Worn or out of adjustment speed control linkage - Repair or adjust linkage |
| Transmission seals or gaskets are broken - Change seals or gaskets |
| Leaking final drive shaft - Replace shaft seals |
| Transmission housing is cracked - Install a new transmission housing |
| Mower Deck Troubleshooting |
| Mower vibrates excessively |
| Dirty or worn mower drive sheave - Service or change sheave |
| Drive belt is damaged or loose - Change belt or adjust belt tension |
| Warped or not balanced mower blades - Replace or balance blades |
| Blade bolts are not tightened well - Tighten it fast |
| Constant clogging of discharge chute |
| High mowing speed - Select a slower speed |
| Long grass - Must be set to low cutting height |
| Engine rpm is too low - Open choke fully |
| Cutting height is too low - Change cutting height adjustment |
| Mower drive belt installation is improper - Reinstall drive belt properly |
| Clogged mower deck - Clean out the mower deck |
| Excessive blade dullness - Need to sharpen the blades |
| Blades are defective or worn - Change the blades |
| Mowing speed is too high - Use a lower speed |
| Cutting height is too low - Adjust mower to higher cutting height |
| Full grass bag - Grass bag must be empty |
| Uneven or bumpy lawn - Level the lawn |
| Cutting level is too low - Change cutting height adjustment |
| Ground speed is too fast - Need to slow down |
| Improperly leveled mower deck - Adjust the level of mower deck correctly |
| Damaged or bent blades - Replace the blades |
| Incorrect tire pressure - Correct tire pressure |
| Tire pressure is too low - Correct tire pressure |
| Incorrect level of mower deck - Adjust mower deck level properly |
| Not sharp blades - Sharpen the blades |
| Worn or defective blades - Install new blades |
| Discharge chute is plugged - Clean mower deck as required |
| Broken mower deck shell - Repair or change the deck |
| Mower spindle is faulty or loose - Replace or repair the spindle |
| Electrical Troubleshooting |
| Battery won’t charge |
| Corroded or loose cable connections - Clean or tighten wiring connections |
| Defective electrical terminal connectors - Terminal connectors need to be changed |
| Faulty cell in battery - Battery change required |
| Battery capacity is low - Low battery charging, charge as required |
| Battery drains quickly - Service charging system or change battery |
| Corroded battery terminals or disconnected wires - Connect wiring correctly or install new terminals |
| Battery is discharged or defective - Charge or change the battery |
| Battery cables are disconnected or incorrectly connected - Check cables and connect as needed |
| Low battery voltage - Battery is drained, recharge it |
| Spark plug worn or incorrectly gapped - Clean, gap or change spark plug |
| Solenoid or starter motor is faulty - Replace solenoid or repair starter |
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| Lawn and Garden Tractors Technical Specs |
