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John Deere X105 Troubleshooting
The
John Deere X105 is a 2WD lawn tractor from X100 series. This model was
manufactured from 2015 to 2025. The driveline consists of 20.7 cu.in (340 cc)
Briggs and Stratton 21 Intek 4-cycle single cylinder OHV vertical shaft
air-cooled gasoline engine with a rated power of 9.2 Hp (6.9 kW), and
continuously variable transmission with infinite forward and reverse gears.
The John Deere X105 is equipped with a manual steering system,
mechanical PTO clutch, disc brakes, 15x6.00-6 front tires, and 20x8.00-8
rear tires. The operating weight is 415 lbs (185 kg). The John Deere
X105 tractor is compatible with a 42" mid-mount 2-blade mower deck with
a cutting height of 1.0-3.9" (25-100 mm) and mechanical lift system.
| Engine Troubleshooting |
| Engine hard to start or doesn't start |
| Empty gas tank - Fill it up |
| Wrong grade of gasoline - Change gasoline |
| There is air in the fuel system - Bleed the system |
| Spark plug wire is disconnected or loose - Inspect spark plug wiring connection, change or repair |
| Defective spark plug - Install new spark plug |
| Plugged fuel filter - Change fuel filter |
| Safety contact for brake pedal defective - Install new part |
| Carburetor settings incorrect - Adjusting as required |
| Bad engine compression - Inspect cylinder block and replace worn components |
| Throttle cable is damaged or adjusted incorrectly - Replace cable or adjust correctly |
| Clogged cooling fins - Need to wash or clean |
| Ignition system is defective - Check ignition and replace faulty components |
| Throttle cable is defective or stuck - Replace or service the cable |
| Plugged air filter - Change or service air filter |
| Clogged or damaged fuel pump - Test fuel pump and replace if necessary |
| Spark plug is damaged - Spark plug need to be replaced |
| Carburetor is faulty or clogged - Carburetor needs to be replaced or cleaned |
| Damaged ignition coil - Replace ignition coil as necessary |
| Worn or loose valve springs - Change valve springs |
| Valves are stuck - Valves need to be cleaned |
| Lack of engine oil - Fill up the engine oil |
| Engine is running overloaded - Load reducing is recommended |
| Cooling fins are clogged - Need to clean or wash |
| Too lean fuel mixture in carburetor - Set the carburetor correctly |
| Ignition timing is wrong - Adjust ignition timing as required |
| Wrong valve setting - Adjust valves as required |
| Stale fuel - Use proper fuel |
| Excessive engine load - Reduce load |
| Engine oil insufficient - Check oil level and add oil as required |
| Too low idle RPM - Correct the settings |
| Fuel pump is defective or dirty - Inspect fuel pump and change as required |
| Crankshaft or main bearings are worn out - Worn parts replacement required |
| Improper valve clearance - Adjust valve clearance |
| Piston rings or cylinder bore are damaged - Change faulty components |
| Carburetor is clogged or incorrectly adjusted - Carburetor needs to be adjusted correctly or cleaned |
| Dirty air filter element - Change or service air filter |
| Fuel pump is dirty or defective - Check fuel pump and change if required |
| Ignition system is defective - Check ignition and replace faulty components |
| Defective cylinder head gasket - Replace the gasket as required |
| Stuck or burned valves - Change or service valves |
| Damaged or worn push rod - Push rod should be replaced |
| Cylinder block components are worn - Replace defective components |
| Excessive fuel consumption |
| Throttle is not fully open - Change or adjust throttle cable |
| Carburetor main jet is incorrectly adjusted - Adjust it properly |
| Faulty or loose spark plug - Re-tighten or replace spark plug |
| Valves are stuck, burned, or worn - Clean or change valves |
| Worn sleeve, piston, or rings - Replace defective parts |
| Incorrect valve clearance - Check and adjust |
| Engine using too much oil |
| Worn gaskets or seals - To repair leaks, replace worn parts |
| Valve guides and stems are worn - Change the valves |
| Worn or broken piston rings - Replace piston rings |
| Piston or cylinder liner is damaged - Check liner and piston, replace as required |
| Breather pipe or hose is blocked - Clean or change |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission makes excessive noise |
| Speed control pedal linkage is damaged or out of adjustment - Adjust or replace linkage |
| Excessive loading - Load needs to be reduced |
| Low transmission oil level or contaminated oil - Add oil to proper level or pour fresh transmission oil |
| Defective or worn transmission parts - After disassembly and inspection, replace defective components |
| Shift linkage is damaged or loose - Replace or service the linkage |
| Worn or seized hydrostatic pump - Repair or change pump |
| Transmission shift control components are defective or misadjusted - Change or adjust correctly |
| Transmission fluid insufficient - Check and refill the transmission fluid |
| Drive pulley is worn or faulty - Change pulley |
| Not adjusted or damaged shifter linkage - Adjust properly or change linkage |
| Bent or unadjusted speed control pedal linkage - Replace or adjust linkage |
| Damaged transmission seals or gaskets - Replace seals or gaskets |
| Final drive shaft leakage - Change shaft seals |
| Cracked transmission housing - Install a new transmission housing |
| Mower Deck Troubleshooting |
| Mower vibration is excessive |
| Mower deck drive pulley is worn or dirty - Service or replace pulley |
| Damaged or loose drive belt - Replace belt or adjust belt tension |
| Unbalanced or warped cutting blades - Replace or balance blades |
| Loose blade bolts tightening - Tighten it fast |
| Discharge chute keeps clogging |
| High ground speed - Use a lower speed |
| Grass is too long - Need to set low cutting height |
| Engine rpm is too low - Adjust carburetor to higher rpm |
| Cutting level is too low - Must be set to high cutting height |
| Drive belt installation is not correct - Drive belt must be installed correctly |
| Discharge area is clogged - Clean mower deck as required |
| Blades are excessively dull - Blades need to be sharpened |
| Worn or defective blades - Replace the blades |
| Mowing speed is too high - Use a slower speed |
| Cutting height is too low - Must be set to high cutting height |
| Filled grass bag - Clean grass bag |
| Lawn is bumpy or not smooth - Lawn needs to be leveled |
| Cutting level is too low - Use correct cutting height |
| High ground speed - Need to slow down |
| Deck level is not correct - Level the deck correctly |
| Bent or worn blades - Blades must be changed |
| Low tire inflation - Correct tire pressure |
| Incorrect tire pressure - Inflate tires as required |
| Mower deck is not leveled properly - Level the deck correctly |
| Excessive blade dullness - Blades need to be sharpened |
| Damaged or worn blades - Replace the blades |
| Cutting deck clogging - Clean mower deck as required |
| Deck housing is damaged - Rebuild or replace mower deck |
| Loose or faulty mower spindle - Spindle needs to be repaired or replaced |
| Electrical Troubleshooting |
| Battery does not charge |
| Wiring connections are corroded or loose - Service or tighten cable connections |
| Battery terminal connectors are defective - Replace terminal connectors |
| Battery is defective - Replace the battery |
| Battery capacity is low - Battery is drained, recharge it |
| Battery drains quickly - Service charging system or change battery |
| Terminals are faulty or battery cables are disconnected - Check wiring connections and replace or clean terminals |
| Battery is discharged or defective - Charge or replace the battery |
| Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required |
| Low battery power - Low battery charging, charge as required |
| Spark plug faulty or incorrectly gapped - Replace or clean and gap |
| Solenoid or starter motor failure - Replace solenoid or repair starter |
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| Lawn and Garden Tractors Technical Specs |
