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Service Engine


Avoid Fumes

c CAUTION: Avoid injury! Engine exhaust fumes contain carbon monoxide and can cause serious illness or death.

Move the machine to an outside area before running the engine.

Do not run an engine in an enclosed area without adequate ventilation.

• Connect a pipe extension to the engine exhaust pipe to direct the exhaust fumes out of the area.

• Allow fresh outside air into the work area to clear the exhaust fumes out.

Engine Oil

Use oil viscosity based on the expected air temperature range during the period between oil changes.



The following John Deere oils are preferred:

• TURF-GARD™

• PLUS- 4™

Other oils may be used if above John Deere oils are not available, provided they meet the following specification:

• API Service Classification SG or higher

Checking Engine Oil Level

IMPORTANT: Avoid damage! Failure to check the oil level regularly could lead to serious engine problems if oil level is out of the operating range:

• Check oil level before operating.

• Check oil level when the engine is cold and not running.

• Keep oil level between the dipstick marks.

• Shut off engine before adding oil.


1. Park the machine safely. (See Parking Safely in the SAFETY section.)

2. Let engine cool.

3. Tip seats forward.

4. Raise and secure cargo box.

5. Remove engine access panel.


MX34009

Picture Note: CX version shown.

6. Remove dipstick (A). Wipe dipstick with a clean rag.

7. Install dipstick. Rest dipstick on threads of tube.

8. Remove dipstick.

9. Check oil level:

• Oil level must be between fill marks on dipstick.

• If oil level is low, add oil to bring oil level no higher than upper mark on dipstick.

• If oil level is above upper mark, drain to proper level. Determine cause of this condition and correct.

10. Install dipstick.

11. Install engine access panel.

12. Lower the cargo box.

13. Tip seats back.

Changing Engine Oil and Filter

IMPORTANT: Avoid damage! Change the oil more often if the vehicle is used in extreme conditions:

• Extremely dusty conditions.

• Frequent slow or low-speed operation.

• Frequent short trips.


1. Run engine to warm the oil.

2. Park the machine safely. (See Parking Safely in the SAFETY section.)

3. Tip seats forward.

4. Raise and secure cargo box.

5. Remove engine access panel.

6. Place drain pan under engine drain valve.


MX30496

7. Remove drain plug (A) at front of engine and drain oil into oil drain pan. Allow oil to drain completely.


M78526

8. Remove oil filter (If equipped):

• Remove oil filter (B). Turn filter counterclockwise to remove.

• Clean oil filter base with a damp, dry rag. Apply a film of clean engine oil on gasket of new filter.

• Install filter. Turn filter clockwise until gasket makes contact with mounting surface. Tighten 1/2 to 3/4 turn after gasket contact.

9. Install and tighten drain plug. Tighten to 20 N•m (177 lb-in.).

10. Remove dipstick.

IMPORTANT: Avoid damage! Do not overfill crankcase with oil. Oil capacities given are with engine and crankcase completely dry. Some oil will remain in engine after draining.


11. Add oil no higher than upper mark on dipstick. Use approximately the amount of oil listed below. Do not overfill.

• 0.9 L (0.95 qt.) without filter

• 1.1 L (1.2 qt.) with filter (if equipped)

12. Install dipstick.

13. Start and run engine at idle to check for leaks. Stop engine. Fix any leaks before operating.

14. Check oil level, add oil if necessary.

15. Install engine access panel.

16. Lower the cargo box.

17. Tip seats back.

Cleaning Rubber Dust Unloading Valve

IMPORTANT: Avoid damage! Do not operate engine without air cleaner element and rubber dust unloading valve installed.


1. Park the machine safely. (See Parking Safely in the SAFETY section.)

2. Tip seats forward.

3. Raise and secure cargo box.

4. Remove engine access panel.


MX30612, MX34016

Picture Note: The air cleaner canister cover is removed for clarity only. Removal of the canister cover or dust unloading valve is not required.

5. Visually check dust unloading valve (A). Replace with new valve if worn, damaged, or missing.

6. Pinch corners (B) toward each other to allow any dirt or debris to fall out of the valve.

7. Install engine access panel.

8. Lower the cargo box.

9. Tip seats back.

Servicing Air Cleaner Element

IMPORTANT: Avoid damage! Dirt and debris can enter engine when air cleaner canister is opened. Do not open canister unless required for scheduled service. This will keep contamination of the intake system to a minimum.

Check filter element more frequently if operating in dusty conditions.


1. Park the machine safely. (See Parking Safely in the SAFETY section.)

2. Let engine cool.

3. Tip seats forward.

4. Raise and secure cargo box.

5. Remove engine access panel.


MX34016

6. Release latches (A) and remove air cleaner canister cover (B).


MX30499

7. Remove and discard filter element (C). Replace with a new filter element.


MX34016

8. Install air cleaner canister cover with rubber dust unloading valve (D) pointing downward. Check instruction molded into canister cover for proper installation.

9. Hook both canister cover latches.

10. Install engine access panel.

11. Lower the cargo box.

12. Tip seats back.

Checking Air Intake Hoses and Clamps

1. Park the machine safely. (See Parking Safely in the SAFETY section.)

2. Let engine cool.

3. Tip seats forward.

4. Raise and secure cargo box.

5. Remove engine access panel.


MX20984

6. Check restrictor (A) for damage or cracking. Replace if necessary.

NOTE: Ensure that the dust unloading valve is pointed downward.

7. Check and tighten air intake hose clamps (B) if needed.

8. Check intake hose (C) for damage or cracking. Replace if necessary.

9. Install engine access panel.

10. Lower the cargo box.

11. Tip seats back.

Checking Spark Plug

1. Park the machine safely. (See Parking Safely in the SAFETY section.)

2. Let engine cool.

3. Tip seats forward.

4. Raise and secure cargo box.

5. Disconnect spark plug wire.

6. Remove spark plug using appropriate spark plug socket.

7. Inspect spark plug for:

• Cracked porcelain.

• Pitted or damaged electrodes.

• Other wear or damage.

8. Clean spark plug carefully with a wire brush.

NOTE: In Canada, replace with resistor spark plug only.

9. Replace spark plug if necessary.


M85200A

10. Check and adjust spark plug gap (A):

• Gap must be 0.7 - 0.8 mm (0.027 - 0.031 in.).

11. Install and tighten spark plug. Tighten to 25 N•m (221 lb-in.).

12. Install spark plug wire.

13. Lower the cargo box.

14. Tip seats back.

Replacing Fuel Filter

c CAUTION: Avoid injury! Fuel vapors are explosive and flammable:

• Do not smoke while handling fuel.

• Keep fuel away from flames or sparks.

• Shut off engine before servicing.

• Cool engine before servicing.

• Work in a well-ventilated area.

• Clean up spilled fuel immediately.

1. Park the machine safely. (See Parking Safely in the SAFETY section.)

2. Let engine cool.

3. Tip seats forward.

4. Raise and secure cargo box.

5. Remove engine access panel.


MX34035

6. Locate the fuel filter (A).

7. Check element of fuel filter for debris. Replace if dirt or sediment is visible on element.

8. Slide hose clamps away from the fuel filter.

9. Place a drain pan or cloth under hoses to catch any fuel left in hoses.

10. Disconnect hoses from the filter.

NOTE: Install fuel filter with arrow pointing in direction of fuel flow towards the engine.

11. Install new filter.

12. Connect hoses to new filter.

13. Install clamps.

14. Install engine access panel.

15. Lower the cargo box.

16. Tip seats back.

Adjusting Carburetor

NOTE: Carburetor is calibrated by the engine manufacturer and is not adjustable.

If engine is operated at altitudes above 1829 m (6,000 ft), some carburetors may require a special high altitude main jet. See your authorized dealer.

If engine is hard to start or runs rough, check the troubleshooting section of this manual.

Possible engine surging will occur at high throttle with transmission in “N” neutral. This is a normal condition due to the emission control system.

After performing the checks in the troubleshooting section and your engine is still not performing correctly, contact your authorized dealer.

Cleaning Engine Compartment and Fins

1. Park the machine safely. (See Parking Safely in the SAFETY section.)

IMPORTANT: Avoid damage! Do not spray water on a hot engine or transaxle. Damage may occur to cast aluminum parts. Allow engine to cool before servicing.


2. Let engine cool.

3. Tip seats forward.

4. Raise and secure cargo box.

5. Disconnect spark plug wire.

6. Remove engine access panel.

7. Remove any debris in engine compartment.

8. Check and remove any obstructions to the brake linkage attached to output shafts on both sides of transaxle.


MX34010

9. Remove four cap screws from debris screen (A).

c CAUTION: Avoid injury! Compressed air can cause debris to fly a long distance.

• Clear work area of bystanders.

• Wear eye protection when using compressed air for cleaning purposes.

• Reduce compressed air pressure to 210 kPa (30 psi).

10. Use a brush or compressed air to clean fins on flywheel and engine block.

11. Install debris screen.

12. Connect spark plug wire.

13. Install engine access panel.

14. Lower the cargo box.

15. Tip seats back.