Home / Lawn and Garden Tractors / Craftsman Lawn Tractors / Craftsman T1000

Craftsman T1000 Troubleshooting

The Craftsman T1000 is a 2WD lawn tractor. This model was manufactured by MTD built between 2014 and 2020. The Craftsman T1000 driveline includes a Zongshen 4P90HU four-cycle single cylinder 2-valve vertical shaft air-cooled gasoline engine and Shift-on-the-go MTD Transmatic transmission with 7 forward and 1 reverse gears.

A 25.6 cu.in (420 cc) engine has a cylinder bore of 3.54" (90 mm), piston stroke of 2.60" (66 mm), and rated power of 11.7 hp (8.7 kW). Max. travel speed (forward and reverse): 5.5 mph (8.8 km/h) / 2.3 mph (3.7 km/h).

The Craftsman T1000 is equipped with a manual steering system, mechanical disc brakes, 15x6.00-6 front tires, and 20x8.00-8 rear tires. The wheelbase is 31" (780 mm). The lawn tractor is compatible with a 42" mid-mount 2-blade mower deck with a cutting height of 1.5-4.0" (37-100 mm) and mechanical lift system.

Engine Troubleshooting
Engine starts hard or will not start
No fuel in fuel tank - Fill gasoline up
Wrong grade of gasoline - Use quality gasoline
Air in fuel system - Bleed fuel system
Spark plug wiring connection is damaged - Inspect spark plug wiring connection, change or repair
Spark plug is damaged - Replace spark plug
Fuel filter is dirty - Install new filter
Defective safety switch - Replace if required
Carburetor problems - Carburetor diagnostics required
Poor compression - Inspect and replace wear parts
Throttle cable is worn or adjusted improperly - Replace cable or adjust correctly
Engine runs roughly
Air intake screen is blocked - Clean and wash as required
Ignition system malfunction - Inspect ignition system and change failed components
Throttle cable is defective or stuck - Change or clean the cable
Air filter element is plugged - Change or service air filter
Fuel pump is damaged or dirty - Service or change fuel pump
Engine starts and stops suddenly
Spark plug is defective - Replace spark plug
Carburetor is dirty or defective - Replace or service carburetor
Ignition coil is not working - Ignition coil should be replaced
Valve springs are worn or loose - Change valve springs
Valves sticking - Clean the valves
Engine overheats
Insufficient engine oil - Check and refill engine oil
Excessive engine load - Reduce engine load
Air intake screen is plugged - Need to clean or wash
Too lean carburetor mixture - Set the carburetor properly
Wrong ignition timing - Ignition timing needs to be adjusted correctly
Valve setting is improper - Set the valves correctly
Engine knocking or noise
Low octane gasoline - Change gasoline
Engine overloaded - Reduce load
Low engine oil level - Fill the crankcase with engine oil
Low idle speed setting is not correct - Adjust idle speed
Clogged or defective fuel pump - Clean or change fuel pump
Main bearings or crankshaft are worn out - Change or repair worn components
Valve clearance is wrong - Adjust to proper valve clearance
Cylinder bore or piston rings are worn - Replace defective components
Loss of engine power
Improperly adjusted or dirty carburetor - Clean or correctly adjust carburetor
Air filter is blocked - Replace or service air filter
Clogged or damaged fuel pump - Clean or replace fuel pump
Ignition system problems - Check ignition and replace faulty components
Blown cylinder head gasket - Change cylinder head gasket
Valves are burned or stuck - Clean or change valves
Push rod is damaged or worn - Push rod needs to be changed
Cylinder block components are damaged - Defective parts need to be replaced
Engine using too much gasoline
Choke opening is not full - Replace or adjust choke cable
Improper adjustment of carburetor main jet - Adjust main jet as required
Spark plug is loose or defective - Spark plug need to be replaced or tightened
Burned, worn, or stuck valves - Change or service valves
Worn rings, piston, or sleeve - Replace defective parts
Valve clearance is incorrect - Adjust to proper valve clearance
Engine consuming too much oil
Damaged seals or gaskets - Replace to repair leaks
Valve stems or guides are damaged - Change the valves
Stuck or defective piston rings - Change piston rings
Piston or cylinder liner is scuffed - Check piston and liner, change as required
Breather hose or pipe is blocked - Replace or clean

Transmission Troubleshooting
Gear hard to shift
Gear shift linkage is stuck or worn - Clean or replace shift linkage
Worn or damaged shift forks - Change defective shift forks
Worn gear shifting mechanism - Repair or change worn components if necessary
Transmission is making noise
Not enough fluid in transmission - Need to add fluid
Transmission fluid contamination - Change transmission fluid
Damaged gears or bearings - Replace faulty parts
Transmission jumps out of gear
Bent or improperly installed shift lever - Change or install shift lever properly
Gears are damaged or worn - Change defective gears
Shift rods or shift forks are faulty - Change defective rods or forks
Transmission slipping
Damaged drive belt/shaft or incorrect drive belt/shaft adjustment - Adjust or change belt/shaft
Clutch/brake is defective or improperly adjusted - Adjust or replace clutch/brake
Damaged or worn drive pulley - Install a new pulley

Hydrostatic Transmission Troubleshooting
Hydrostatic transmission makes noise
Speed control pedal linkage is bent or not adjusted - Repair or adjust linkage
Excessive transmission load - Reduce loading
Oil is dirty or oil level is too low - Add oil to the correct level or fill the transmission with fresh oil
Transmission components are damaged or worn - After disassembling and inspection, change defective components
Hard to shift
Stuck or worn shift linkage - Linkage need to be replaced
Blocked or faulty hydrostatic pump - Replace or repair pump
Transmission shift control parts are damaged or misadjusted - Adjust correctly or replace
Power is too low
Transmission oil level is low - Need to add transmission oil
Drive pulley is damaged or worn - Replace pulley
Not adjusted or damaged shifter linkage - Replace or adjust linkage
Speed control pedal linkage is damaged or out of adjustment - Adjust or repair linkage
Transmission leaks
Transmission seals or gaskets are broken - Change seals or gaskets
Final drive shaft leakage - Change 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 - Replace or service sheave
Drive belt is worn or loose - Install a new belt or adjust belt tension
Warped or not balanced mower blades - Balance or replace blades
Blade mounting bolts are loose - Bolts should be tightened
Discharge chute keeps clogging
Mowing speed is too high - Use a lower speed
Tall grass - Use a lower cutting height
Engine is running at too low speed - Open choke fully
Low cutting height - Change cutting height adjustment
Mower deck drive belt installed incorrectly - Install drive belt correctly
Patches of grass uncut
Mower deck is clogged - Clean mower deck as required
Blades are excessively dull - Blades need to be sharpened
Worn or damaged blades - Change the blades
Fast mowing speed - Operate at slower speed
Cutting height is too low - Must be set to high cutting height
Full bagger - Remove grass from bagger
Blade scalped grass
Lawn is uneven or bumpy - Lawn leveling required
Cutting level is too low - Must be set to high cutting height
Fast mowing speed - Select a slower speed
Incorrectly leveled mower deck - Adjust the level of mower deck correctly
Blades are bent or worn - Blades need to be replaced
Tire pressure is too low - Inflate tires correctly
Mower cutting is uneven
Incorrect tire pressure - Inflate tires as required
Incorrectly leveled mower deck - Level the deck properly
Excessive blade dullness - Need to sharpen the blades
Worn or defective blades - Install new blades
Deck is plugged with grass - Need to clean the mower deck
Deck housing is damaged - Rebuild or replace mower deck
Mower spindle is faulty or loose - Spindle needs to be repaired or replaced

Electrical Troubleshooting
Battery cannot be charged
Corroded or loose wire connections - Tighten or clean connections
Electrical terminal connectors are defective - Terminal connectors need to be changed
Battery is worn - Change the battery
Starter turns slowly
Low battery power - Battery needs to be recharged
Battery won’t hold charge - Service charging system or replace battery
Bad terminals or disconnected battery cables - Check wiring and clean or replace terminals
Starter does not work
Battery is drained or defective - Need to charge or replace the battery
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required
Low battery capacity - Recharge the battery
Faulty or incorrectly gapped spark plug - Clean, gap or change spark plug
Faulty solenoid or starter motor - Repair starter or change solenoid



Lawn and Garden Tractors Technical Specs