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John Deere X106 Troubleshooting
The
John Deere X106 lawn tractor from X100 Series was manufactured between 2018 and
2020. The John Deere X106 tractor is powered by Briggs and Stratton 21R877
4-cycle single cylinder OHV vertical shaft air-cooled gasoline engine. A 20.7
cubic inches (340 cc) engine has a cylinder bore of 3.44" (87 mm), piston stroke
of 2.26" (57 mm), and rated power of 10.2 Hp (7.6 kW).
This model is fitted with a continuously variable transmission with
infinite forward and reverse gears. The John Deere X106 is equipped with
a manual steering system, mechanical PTO clutch, disc brakes, 15x6.00-6
front tyres, and 20x8.00-8 rear tyres. The operating weight is 413 lbs
(186 kg). The tractor is compatible with a 42" mid-mount 2-blade mower
deck with a cutting height of 1.0-4.0" (25-102 mm) and mechanical lift
system.
| Engine Troubleshooting |
| Engine starts hard or doesn't start |
| Gas tank is empty - Fill gasoline up |
| Improper fuel grade - Use quality fuel |
| Dirt and debris in fuel system - Remove debris and dirt |
| Spark plug wiring connection is defective - Check spark plug wiring connection, repair or change |
| Damaged spark plug - Change spark plug as required |
| Clogged fuel filter - Install new filter |
| Brake pedal not depressed - Press the brake pedal |
| Carburetor problems - Carburetor diagnostics required |
| Engine has bad compression - Check cylinder block and change wear parts |
| Worn or unadjusted choke cable - Adjust correctly or replace the cable |
| Air intake screen is plugged - Clean and wash as required |
| Ignition failure - Check ignition and replace faulty components |
| Throttle cable is stuck or defective - Replace or clean the cable |
| Air filter element is plugged - Clean or change air filter |
| Dirty or faulty fuel pump - Check fuel pump and replace if necessary |
| Engine starts and stalls immediately |
| Faulty spark plug - Replace spark plug |
| Dirty or faulty carburetor - Replace or service carburetor |
| Ignition coil is faulty - Change ignition coil as required |
| Bad or broken valve springs - Replace valve springs |
| Stuck valves - Clean the valves |
| Low engine oil level - Need to add engine oil |
| Engine overloaded - Reduce engine load |
| Air intake screen is plugged - Wash or clean as required |
| Carburetor mixture is too lean - Use proper settings |
| Ignition timing is incorrect - Set the ignition timing properly |
| Valve setting is improper - Valves needs to be adjusted properly |
| Engine knocking sound or abnormal noise |
| Low octane gasoline - Change gasoline |
| Excessive engine load - Reduce load |
| Engine oil level is insufficient - Check oil level and add oil as required |
| Too low idle RPM - Correct the settings |
| Dirty or defective fuel pump - Clean or change fuel pump |
| Main bearings or crankshaft are worn out - Install new parts as as required |
| Valve clearance is incorrect - Adjust to proper valve clearance |
| Cylinder bore or piston rings are worn - Replace faulty components |
| Carburetor is clogged or incorrectly adjusted - Clean or correctly adjust carburetor |
| Air filter is blocked - Service or change air filter |
| Clogged or defective fuel pump - Check fuel pump and change if required |
| Defective ignition system - Inspect ignition system and change failed components |
| Cylinder head gasket is defective - Change cylinder head gasket |
| Burned or stuck valves - Change or clean valves |
| Push rod is worn or defective - Install a new push rod |
| Faulty cylinder block parts - Replace defective components |
| Engine uses too much fuel |
| Throttle did not open fully - Replace or adjust throttle cable |
| Carburetor main jet adjustment is improper - Adjust it correctly |
| Defective or loose spark plug - Re-tighten or change the spark plug |
| Valves are stuck, worn, or burned - Clean or change valves |
| Worn sleeve, rings, or piston - Replace faulty components as required |
| Incorrect valve clearance - Check and adjust |
| Gaskets or seals can be faulty - Worn parts need to be replaced |
| Valve guides or stems are damaged - Valves must be replaced |
| Piston rings are stuck or worn - Piston rings replacement required |
| Scored piston or cylinder liner - Inspect piston and liner, fit new components as necessary |
| Breather pipe or hose is clogged - Replace or clean |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission is excessively noisy |
| Bent or unadjusted speed control pedal linkage - Adjust or change linkage |
| Transmission overloaded - Reduce transmission load |
| Transmission oil is contaminated or oil level is insufficient - Add oil to proper level or pour fresh transmission oil |
| Worn or defective parts of the hydro transmission - Check components for defect or damage and change if necessary |
| Shift linkage is worn or rusty - Replace or lubricate the linkage |
| Faulty or blocked hydrostatic pump - Repair or change pump |
| Misadjusted or faulty transmission shift control components - Adjust properly or change |
| Low fluid level - Add fluid to the transmission housing |
| Drive pulley is worn or faulty - Change pulley |
| Shift linkage is damaged or unadjusted - Adjust properly or replace linkage |
| Defective or not adjusted speed control pedal linkage - Repair or adjust linkage |
| Worn transmission seals or gaskets - Seals and gaskets need to be replaced |
| Final drive shaft leakage - Replace shaft seals |
| Cracked transmission housing - Replace housing or transmission assembly |
| Mower Deck Troubleshooting |
| Mower vibration is excessive |
| Drive sheave of mower deck is dirty or worn - Service or change sheave |
| Drive belt is damaged or loose - Replace belt or adjust belt tension |
| Mower blades are unbalanced or bent - Replace or balance blades |
| Loose blade mounting bolts - Bolts need to be tightened |
| Constant clogging of discharge chute |
| High mowing speed - Need to slow down |
| Grass is too high - Use a lower cutting height |
| Engine is running at too low speed - Throttle is not fully open |
| Cutting height is too low - Use a higher cutting height |
| Mower deck drive belt installed incorrectly - Check drive belt for correct installation |
| Discharge area is clogged - Clean out the mower deck |
| Blades are not sharp - Need a blade sharpening |
| Defective or worn blades - Change the blades |
| High ground speed - Select a slower speed |
| Low cutting height - Need to set high cutting height |
| Filled grass bag - Empty the grass bag |
| Bumpy or not smooth lawn - Roll or level the lawn |
| Mower cuts too low - Need to set high cutting height |
| High ground speed - Select a slower speed |
| Deck is not leveled correctly - Level the deck correctly |
| Blades are worn or bent - Blades need to be replaced |
| Low tire pressure - Check and inflate the tires |
| Tires are not properly inflated - Need to inflate tires |
| Incorrect level of mower deck - Level the deck properly |
| Blades are not sharp - Need to sharpen the blades |
| Worn or bent blades - Blades must be changed |
| Cutting deck clogging - Clean out the mower deck |
| Broken mower deck shell - Rebuild or change mower deck |
| Bent or loose mower spindle - Install new spindle or repair it |
| Electrical Troubleshooting |
| Battery cannot be charged |
| Corroded or loose wire connections - Tighten or service cable connections |
| Faulty battery terminal clamps - Change terminal clamps |
| Battery is defective - Install a new battery |
| Low battery capacity - Battery is drained, recharge it |
| Battery is not holding charge - Service charging system or install new battery |
| Bad terminals or disconnected battery cables - Connect wiring correctly or install new terminals |
| Starter motor is not working |
| Battery is discharged or worn - Charge or change the battery |
| Battery cables are disconnected or improperly connected - Inspect cables and connect properly |
| Battery capacity is low - Low battery charging, charge as required |
| Spark plug faulty or incorrectly gapped - Replace or clean and gap |
| Faulty solenoid or starter motor - Repair starter or replace solenoid |
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| Lawn and Garden Tractors Technical Specs |
