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Home / Lawn and Garden Tractors / Husqvarna Lawn Tractors / Husqvarna TS243T

Husqvarna TS 243T Troubleshooting

The Husqvarna TS 243T is a 2WD garden tractor. This model was manufactured from 2016 to 2019. The Husqvarna TS243T drivetrain system components: Briggs and Stratton 40U777 Endurance Series 4-cycle V-twin cylinder OHV air-cooled gasoline engine and Tuff Torq K46 BT belt-driven hydrostatic with foot-controlled variable speed drive.

A 40.1 cu.in (656 cc) engine has a cylinder bore of 2.97" (75 mm), piston stroke of 2.89" (73 mm), and rated power of 20 hp (14.8 kW). The maximum travel speed (forward/reverse): 5 mph (8 km/h) and 2.5 mph (4.1 km/h).

The Husqvarna TS 243T lawn tractor is equipped with a manual steering, pneumatic wheels, 15x6.00-6 front tires, and 20x10.00-8 rear tires. The tractor is compatible with a 42" mid-mount 2-blade side discharge mower deck with cutting height of 1.5-4.0 in (38-102 mm), electric blade engagement, 6 cut positions, central cutting height adjustment with spring-assisted, 4 anti-scalp wheels, and mechanical lifting system.

Engine Troubleshooting
Engine won't start or starts hard
No fuel in fuel tank - Add gasoline
Wrong grade of gasoline - Use correct fuel grade
Air in fuel tank - Bleed fuel tank
Spark plug wire is disconnected or loose - Inspect spark plug wiring connection, change or repair
Spark plug is damaged - Install new spark plug
Fuel filter is dirty - Fuel filter needs changing
Faulty safety switch - Change damaged switch
Carburetor is clogged - Clean the carburetor
Poor cylinder compression - Check cylinder block and change worn parts
Choke cable is unadjusted or damaged - Replace cable or adjust properly
Rough engine running
Cooling fins are clogged - Need to clean or wash
Ignition system problems - Inspect ignition system and change failed components
Throttle cable is defective or stuck - Service or change the cable
Air filter element is plugged - Change or clean air filter
Fuel pump is damaged or dirty - Inspect fuel pump and change as required
Engine starts and stops
Defective spark plug - Spark plug need to be replaced
Carburetor is clogged or defective - Carburetor needs to be replaced or cleaned
Ignition coil is not working - Ignition coil must be replaced
Valve springs are bad or broken - Valve springs need to be changed
Stuck valves - Clean the valves
Engine overheating
Engine oil level is low - Fill up the oil to required level
Engine is under excessive load - Reduce load
Cooling fins are plugged - Clean and wash as required
Carburetor fuel mixture is too lean - Set the carburetor correctly
Ignition timing is improper - Adjust ignition timing correctly
Improper valve setting - Adjust valves as required
Abnormal engine noise or knocking
Low octane gasoline - Use correct fuel
Engine overload - Load reducing required
Not enough engine oil - Fill up the engine oil
Incorrect low idle setting - Adjust the low idle speed
Dirty or damaged fuel pump - Clean or change fuel pump
Crankshaft or main bearings are worn out - Install new parts as as required
Incorrect valve clearance - Check and adjust
Piston rings or cylinder bore are damaged - Change defective components
Engine power loss
Carburetor is dirty or incorrectly adjusted - Service or correctly adjust carburetor
Clogged air filter - Replace or clean air filter
Dirty or defective fuel pump - Clean or install new fuel pump
Ignition system problems - Test ignition and replace failed parts
Blown cylinder head gasket - Replace cylinder head gasket
Burned or stuck valves - Replace or clean valves
Damaged or worn push rod - Replace push rod
Faulty cylinder block parts - Replace defective parts
Excessive fuel consumption
Insufficient choke opening - Inspect choke cable and adjust as required
Incorrect carburetor main jet adjustment - Adjust main jet as required
Loose or defective spark plug - Change or re-tighten spark plug
Worn, stuck, or burned valves - Change or clean valves
Worn sleeve, piston, or rings - Replace faulty parts as required
Improper valve clearance - Check and adjust
Excessive oil consumption
Seals or gaskets are wearing excessively - Install new components
Damaged valve guides or valve stems - Replace the valves
Worn or broken piston rings - Replace piston rings
Worn cylinder liner or piston - Check liner and piston, install new components as required
Clogged breather hose or pipe - Service or replace

Hydrostatic Transmission Troubleshooting
HST transmission makes excessive noise
Speed control linkage is defective or unadjusted - Replace or adjust linkage
Transmission overload - The load should be reduced
Contaminated transmission fluid or low fluid level - Fill to required level or change the fluid
Transmission parts are worm or defective - Replace or repair defective components
Shifting is hard
Shift linkage is worn or rusty - Replace or lubricate the linkage
Faulty or blocked hydrostatic pump - Replace or repair pump
Faulty or misadjusted transmission shift control parts - Adjust correctly or replace
Loss of power
Insufficient transmission fluid - Checking transmission fluid level and add if necessary
Drive sheave is worn or faulty - Change sheave
Shifter linkage is faulty or not adjusted - Adjust correctly or change linkage
Defective or not adjusted speed control pedal linkage - Change or adjust linkage
Transmission leaks
Damaged transmission seals or gaskets - Install new gaskets or seals
Final drive shaft is leaking - Change shaft seals
Transmission housing is cracked - Housing needs to be replaced

Mower Deck Troubleshooting
Mower vibrates excessively
Dirty or worn mower drive sheave - Service or change sheave
Worn or loose drive belt - Adjust belt tension or replace belt
Mower blades are warped or not balanced - Balance blades or replace it
Loose blade mounting bolts - Bolts need to be tightened
Discharge chute is regularly plugged
High mowing speed - Use a lower speed
Grass is too long - Use a lower cutting height
Engine rpm is too low - Adjust throttle to full opening
Mower cuts too low - Change cutting height adjustment
Drive belt installation is not correct - Install drive belt correctly
Patches of grass uncut
Discharge chute is plugged - Check cutting deck and clean as necessary
Blades are excessively dull - Sharpen the blades
Worn or defective blades - Blades must be changed
High mowing speed - Use a slower speed
Cutting level is too low - Use correct cutting height
Grass bag is full - Clean grass bag
Blades scalp the grass
Lawn is not level or bumpy - Level the lawn
Cutting level is too low - Change cutting height adjustment
Fast mowing speed - Use a slower speed
Incorrect level of mower deck - Level the deck correctly
Bent or worn blades - Change the blades
Incorrect tire pressure - Correct tire pressure
Mower cutting is uneven
Incorrect tire pressure - Need to inflate tires
Deck is not leveled correctly - Deck should be adjusted correctly
Blades are not sharp - Need a blade sharpening
Worn or bent blades - Change the blades
Clogged mower deck - Clean mower deck as required
Broken mower deck housing - Rebuild or replace mower deck
Loose or faulty mower spindle - Install new spindle or repair it

Electrical Troubleshooting
Battery won’t charge
Electrical cable connections are loose or corroded - Clean or tighten connections
Faulty electrical terminal connectors - Install new terminal connectors
Battery is worn - Change the battery
Starter cranks slowly
Low battery power - Battery needs to be recharged
Battery is draining quickly - Battery needs service or replacement
Bad battery terminals or disconnected wiring - Check wiring and clean or replace terminals
Starter does not work
Battery is low or faulty - Replace or charge as required
Wire harness is disconnected or incorrectly connected - Check wire harness and connect as required
Low battery voltage - Low battery charging, charge as required
Spark plug gapped improperly or faulty - Replace or clean and gap
Starter motor or solenoid is defective - Starter/solenoid needs to be replaced

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