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Husqvarna YTH22V42 Troubleshooting
The
Husqvarna YTH22V42 lawn tractor was manufactured from 2012 to 2013. The
Husqvarna YTH22V42 powertrain system components: Briggs and Stratton 407777
4-cycle vertical-shaft V-twin cylinder air-cooled gasoline engine and Tuff Torq
K46 belt-driven hydrostatic transmission with foot-controlled variable speed
drive.
A 40.1 cubic inches (656 cc) engine has a cylinder bore of 2.97" (75
mm), piston stroke of 2.89" (73 mm), and rated power of 22 hp (17 kW).
The maximum travel speed (forward/reverse): 5.2 mph (8.4 kph) and 2.9
mph (4.7 kph). The Husqvarna YTH22V42 is fitted with 15x6.00-6 front tires
and 20x8.00-8 rear tires.
The wheel base is 48 inches (1220 mm). The tractor is equipped with a
42" mid-mount 2-blade side discharge mower deck with cutting height of
1.5-4.0" (37-100 mm), 6 cut positions, and manual lift system.
| Engine Troubleshooting |
| Engine won't start or difficult to start |
| Empty fuel tank - Add gasoline |
| Wrong fuel grade - Use quality gasoline |
| Clogged fuel system - Remove clogging |
| Loose or disconnected spark plug wire - Check the spark plug wire connection, repair or replace |
| Defective spark plug - Change spark plug as required |
| Fuel filter is plugged - Change fuel filter |
| Defective safety switch - Replace if required |
| Wrong carburetor adjustment - Adjusting carburetor correctly |
| Poor engine compression - Check cylinder block and replace damaged components |
| Unadjusted or worn throttle cable - Change cable or adjust correctly |
| Cooling fins are clogged - Clean and wash as required |
| Ignition system failure - Inspect ignition system and change failed components |
| Choke cable is stuck or defective - Service or replace the cable |
| Plugged air filter - Clean or replace air filter |
| Dirty or damaged fuel pump - Check fuel pump and change if required |
| Engine starts but stops suddenly |
| Damaged spark plug - Change spark plug as required |
| Carburetor is faulty or clogged - Clean or install new carburetor |
| Ignition coil is not working - Replace ignition coil as necessary |
| Valve springs are damaged or weak - Install new valve springs |
| Valves are stuck - Clean the valves |
| Engine oil insufficient - Need to add engine oil |
| Engine overload - Reduce engine load |
| Cooling fins are plugged - Clean and wash as required |
| Carburetor fuel mixture is too lean - Adjust carburetor correctly |
| Incorrect ignition timing - Adjust ignition timing correctly |
| Incorrect valve setting - Set the valves correctly |
| Abnormal engine noise or knocking |
| Stale gasoline - Change gasoline |
| Engine is under excessive load - Reduce the load |
| Engine oil insufficient - Need to add engine oil |
| Low idle speed setting is not correct - Adjust idle speed |
| Clogged or defective fuel pump - Test fuel pump and change if necessary |
| Main bearings or crankshaft wear - Crankshaft or bearings need to be replaced |
| Valve clearance is incorrect - Adjust valve clearance according to specifications |
| Cylinder bore or piston rings are worn - Replace faulty parts |
| Incorrectly adjusted or clogged carburetor - Service or correctly adjust carburetor |
| Dirty air filter element - Service or replace air filter |
| Dirty or defective fuel pump - Clean or replace fuel pump |
| Defective ignition - Inspect ignition system and change faulty parts |
| Blown cylinder head gasket - Install new head gasket |
| Valves are stuck or burned - Clean or change valves |
| Push rod is bent or worn - Push rod should be replaced |
| Worn cylinder block parts - Defective components need to be replaced |
| Throttle not fully open - Check throttle cable and adjust as required |
| Carburetor main jet is incorrectly adjusted - Adjust it properly |
| Spark plug is faulty or loose - Spark plug need to be replaced or tightened |
| Burned, worn, or stuck valves - Service or replace valves |
| Worn sleeve, piston, or rings - Change faulty parts |
| Incorrect valve clearance - Adjust valve clearance according to specifications |
| Excessive engine oil consumption |
| Damaged seals or gaskets - Install new components |
| Valve stems or guides are damaged - Replace the valves |
| Piston rings are stuck or broken - Piston rings need to be replaced |
| Piston or cylinder liner is worn - Inspect piston and liner, change as required |
| Breather hose or pipe is blocked - Change or clean |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission makes noise |
| Speed control linkage is defective or unadjusted - Adjust or install new linkage |
| Transmission is under excessive load - Reduce the load is required |
| Transmission oil is contaminated or oil level is insufficient - Add oil to the correct level or fill the transmission with fresh oil |
| Transmission parts are worm or defective - After disassembly and inspection, replace defective components |
| Rusty or worn shift linkage - Install a new gear linkage |
| Hydrostatic pump is defective or blocked - Repair or change pump |
| Damaged or unadjusted transmission shift control components - Replace or adjust as required |
| Low fluid level - Check and refill the transmission fluid |
| Faulty or worn drive sheave - Replace sheave |
| Shifter linkage is not adjusted or faulty - Adjust properly or change linkage |
| Worn or unadjusted speed control linkage - Replace or adjust linkage |
| Worn transmission seals or gaskets - Change gaskets or seals |
| Leaking final drive shaft - Shaft seals need to be changed |
| Cracked transmission housing - Replace damage housing or transmission assembly |
| Mower Deck Troubleshooting |
| Excessive mower vibration |
| Mower deck drive pulley is worn or dirty - Change or clean pulley |
| Drive belt is damaged or loose - Adjust belt tension or install a new belt |
| Unbalanced or warped cutting blades - Balance or change as needed |
| Blade mounting bolts are loose - Bolts should be tightened |
| Discharge chute keeps clogging |
| High ground speed - Use a lower speed |
| Long grass - Must be set to low cutting height |
| Low engine speeds - Adjust choke to full opening |
| Mower deck set to low cutting - Need to set high cutting height |
| Mower drive belt installation is improper - Install drive belt correctly |
| Cutting deck clogging - Mower deck needs to be cleaned |
| Excessive blade dullness - Need a blade sharpening |
| Worn or damaged blades - Blades must be changed |
| Fast ground speed - Operate at slower speed |
| Low cutting height - Use correct cutting height |
| Filled bagger - Empty the bagger |
| Uneven or bumpy lawn - Level the lawn |
| Mower deck cutting height is set too low - Use correct cutting height |
| Fast mowing speed - Operate at slower speed |
| Incorrectly leveled mower deck - Level the deck correctly |
| Blades are bent or worn - Install new blades |
| Tire pressure is too low - Need to inflate tires |
| Incorrect tire pressure - Inflate tires correctly |
| Incorrect level of mower deck - Level the deck properly |
| Blades are too dull - Need a blade sharpening |
| Worn or defective blades - Change the blades |
| Clogged mower deck - Clean mower deck as required |
| Deck housing is broken - Replace or rebuild mower deck |
| Loose or faulty mower spindle - Change or repair the spindle |
| Electrical Troubleshooting |
| Battery does not charge |
| Corroded or loose electrical wire connections - Service or tighten connections |
| Defective electrical terminal connectors - Replace terminal connectors |
| Faulty cell in battery - Change the battery |
| Low battery output - Battery is drained, charge it |
| Battery won’t hold charge - Battery needs to be serviced or replaced |
| Disconnected cables or faulty battery terminals - Check wiring and clean or replace terminals |
| Battery is discharged or worn - Need to charge or replace the battery |
| Wiring is improperly connected or disconnected - Check wiring and connect properly |
| Low battery output - Battery is drained, charge it |
| Incorrectly gapped or worn spark plug - Clean and gap or replace |
| Solenoid or starter motor is faulty - Repair starter or replace solenoid |
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| Lawn and Garden Tractors Technical Specs |
