________________________________________________________________________________

Cub Cadet GT2550 Garden Tractor Problems

Cub Cadet GT2550 Engine Troubleshooting

Engine fails to start

Gas tank is empty - Add gasoline.
Incorrect fuel grade - Change fuel.
Old gas - Drain gasoline and fill fresh up.
Fuel system clogged - Repair or replace.
Spark plug wire is loose or disconnected - Check wires connection.
Spark plug damaged - Change as required.
Fuel filter is dirty - Replace fuel filter.
Brake pedal not depressed - Press the brake pedal.
Incorrect carburetor adjustment - Adjust carburetor idle mixture screw.
Inspect and adjust throttle cable. Test crankcase vacuum.

Kohler engine hard to start

Spark plug fail - Test spark and change as required.
Carburetor incorrectly set - Set carb correctly.
Dirt in fuel lines - Remove clogging from fuel pipes.
Choke cable damaged - Replacement required.
Stale or improper gasoline - Pour quality gasoline.
Electrical wiring worn out - Checking and replace.
Starter problems - Check starter, repair or replace.

Rough running engine

Cooling fins plugged - Remove dirt from cooling fins.
Loose electrical connections - Inspect and restore defective contacts.
Incorrect ignition settings - Check ignition system and adjust as required.
Throttle cable sticking - Check and replace.
Air cleaner dirty - Change air cleaner.

Engine stops or misses

Spark plug fail - Check spark plug wire for wet or deteriorated condition.
Carburetor defective or not adjusted - Repair or adjust.
Ignition coil air gap incorrect - Check and adjust ignition coil air gap.

Kohler engine overheating

Excessive engine load - Reduce the load.
Cooling fins or air inlet plugged - Clean clogged components.
Too little or too much oil - Inspect oil level.
Incorrect engine oil viscosity - Change engine oil.
Check internal bearing clearance.
Fast idle speed - Adjust carburetor idle mixture screw.

Engine will not idle

Spark plug not gapped correctly - Adjust spark plug gap.
Spark plug worn out - Test spark and replace as required.

Engine knocks

Low octane gasoline - Change gasoline.
Engine overloaded - Reduce the load.
Lack of engine oil - Add to required level.
Engine runs at low revs - Adjust carburetor as needed.
Cylinder bore or piston rings are damaged - Inspect cylinder bore or rings for worn.
Check for engine overheating from plugged cooling fins.
Check and adjust crankshaft end play.
Inspect for loose or wear connecting rods.

Kohler engine back-fire

Checking spark plug.
Check and adjust the choke.
Adjust carburetor idle mixture screw.
Check and adjust ignition coil air gap.
Check for sticking valves.
Checking and adjusting valve clearance.
Check flywheel key.

Insufficient engine power

Engine overheating - Clean or replace air filter.
High engine oil - Drain excess oil.
Fuel pump problems - Test fuel pump output.
Faulty governor - Inspect and repair governor.
Inspect carburetor for plugged passages.
Check engine compression.

Excessive Fuel Consumption

Insufficient choke opening - Inspect choke cable.
Carburetor is not working properly - Checking and adjusting carburetor.

Emits black smoke

Air filter element plugged - Inspect and clean.
Throttle not fully engaged - Inspecting and adjusting throttle.
Check for correct main jet for elevation.

Cub Cadet GT2550 Electrical System Troubleshooting

Starter doesn't work or will not turn engine

Main fuse defective - Check and change.
Poor terminal connection - Inspect and clean terminals.
Battery discharged - Charge the battery.
Ignition switch is damaged - Change the lock.
Damaged starter - Install new starter.
Wires disconnected - Replace wiring.

Battery does not charge

Battery cells fails - Install new battery.
No contact between cable and battery terminal - Inspect and Clean.

Lights do not work

Light plug not connected - Reconnect
lamp does not work.
Inspect electrical wires for short- circuit.

Cub Cadet GT2550 Machine Troubleshooting

Tractor vibrates too much or rattles excessively

Equipment drive belts worn out - Inspect and replace damaged belt.
Traction drive belt damage - Install new belt.
Drive sheaves malfunction - Replace if necessary.
Cutting blade loose or unbalanced - Change defective blades.

Tractor will not move with engine running

Parking brake is applied - Unlock park brake.
Bypass lever is on - Deactivate the bypass valve.
Mower blades are loose - Inspect and fasten securely if necessary.
Improper blade balance - Balance the mower blades correctly.
Transmission oil is insufficient - Add transmission oil.

Cub Cadet GT2550 Lawn Mower Problems

Plugged discharge chute

Traveling too fast - Do not use high speed.
Grass Too Tall - Adjust cutting height.
Wet grass - Wait for the grass to dry.
Low engine speeds - Open throttle fully.
Loss of airflow - Check engine rpm.
Lack of cutting height - Use higher cutting.
Belt fitted incorrectly - Check belt installation.

Uncut grass during operation

Mower deck clogged - Deck cleaning required.
Excessive blade wear - Check and replace the blade.
Mower deck is low from ground - Deck leveling required.
Grass bag too full - Empty bagger.
Travel speed too fast - Use slower speed.

Belt Slipping

Sheave is dirty - Recommend cleaning the sheaves.
Drive belt wear - Install new belt.
Belt tension improper - Correct belt tension.

Excessive mower vibration

Debris in pulleys or in mower deck - Remove clogging from sheaves or mower deck.
Sheaves or belt faulty - Change defective components.
Belt or pulleys out of centering - Check and centering.
Incorrect blade balancing - Balance blades properly.

Blades scalp grass

Cutting too low - Check and adjust height.
Mower rollers not adjusted improperly - Adjust rear or front wheel height.
Low tire inflation - Need to inflate tires.
Higher blade speed - Correct blades speed.
Bent mower blades - Install new blades.

Uneven cutting results

Mower deck low - Checking and adjust deck height.
Low tire inflation - Need to inflate tires.
Rollers not positioned properly - Adjust rear or front wheel height.
Gear too high - Operate the mower at low speed.
Mower blade worn or bent - Sharpen the blade or install a new one.

CUB CADET TRACTORS TROUBLESHOOTING
1050	1863	2166	2182	2186
3184	3205	GT1554	GT2550	GTX2100
LT1040	LT1042	LT1045	LT1046	LT1050
LT2180	LTX1040	LTX1042	LTX1045	LTX1046
LTX1050	SLTX1054	XT1 LT42	XT1 LT46	XT3 GSX