Honda FG110 Manual

FOR YOUR SAFETY

Your safety and the safety of others are very important. We have provided important safety messages in this manual and on the tiller. This information alerts you to potential hazards that could hurt you or others. Please read these messages carefully.
Of course, it is not practical or possible to warn you about all the hazards associated with operating or maintaining a mini-tiller. You must use your own good judgment.

Safety Instructions
You will find important safety information in a variety of forms:

• Safety Labels – on the mini-tiller.
• Instructions – how to use this tiller correctly and safely.
• Safety Messages – preceded by a safety alert symbol and one of three signal words: DANGER, WARNING, or CAUTION.
  Each message tells you what the hazard is, what can happen, and what you can do to avoid or reduce injury.
  These signal words mean:
  
  You WILL be KILLED or SERIOUSLY HURT if you don't follow instructions.
  
  You CAN be KILLED or SERIOUSLY HURT if you don't follow instructions.
  
  You CAN be HURT if you don't follow instructions.
• Damage Prevention Messages – You will also see other important messages that are preceded by the word NOTICE. This word means:
  NOTICE
  Your tiller, other property, or the environment can be damaged if you don't follow instructions.

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or reproductive harm.

Important Message to Employers
As an employer, you have special responsibilities to the people who work for you. Do not allow an inexperienced, untrained operator to use this tiller without proper instruction, and always make sure the operator is an adult.
Before you ask anyone to operate this tiller, you need to determine whether the person is old enough, large enough, and strong enough to safely handle and control the tiller.
If you decide they are, make sure the employee reads and understands all instructions and warnings in this manual and on the labels before operating the tiller.
Allow adequate time for hands-on training by a qualified instructor, and personally supervise practice sessions until you feel sure the employee is ready to operate the machine.
Also be sure employees wear proper clothing and have eye protection and any other gear that may be required by local ordinances or your insurance company.
Remember, too, that you are responsible for keeping the tiller properly maintained and in safe operating condition.
Your commitment to safety on the job can help prevent injuries and result in longer and more productive years of service.

Important Message to Parents
Never allow a child to operate the tiller.

Safety Label Locations
These labels warn you of potential hazards that can cause serious injury. Read them carefully. If a label comes off or becomes hard to read, contact an authorized Honda servicing dealer for a replacement.

PARTS AND CONTROLS

INITIAL TILLER SETUP

List of Parts

Carefully remove the tiller and loose parts from the carton and compare the loose parts against the following list. Contact the authorized Honda dealer from whom you purchased the tiller if any of the loose parts listed are not included with your tiller.

Adjust the Handlebar

1. Carefully remove the tiller from the carton.
2. Unfold the tiller upper handle to the operating position as shown. Be careful not to crimp or pinch the engine switch wires and throttle cable.
3. Tighten the handlebar knobs to secure the handle in the upright operating position.

Add Engine Oil

The tiller is shipped WITHOUT OIL in the engine.
A 12 fl. oz. (355 cc) bottle of oil is included in the box with your tiller.
Working on a level surface, tip the tiller forward on its carrying handlebar as shown.
All Honda engines are run at the factory prior to packaging. Most of the oil is removed prior to shipment; however, some oil remains in the engine. The amount of oil left in the engine varies.
Remove the oil filler cap/dipstick.
Add approximately 2.7 fl. oz. (80 cc) of the recommended oil to bring the oil level to the edge of the oil filler hole.
Do not overfill the engine with oil, as the oil tank capacity is small (approx. 2.7 fl. oz., 80 cc). See Check the Engine Oil Level for additional information.
Screw in the oil filler cap/dipstick securely.

NOTICE
Running the engine with too little or too much oil can cause engine damage. This type of damage is not covered by the DISTRIBUTOR'S LIMITED WARRANTY.

Please Register Your Mini-Tiller

Please take a few minutes and register your purchase with Honda. You can register by:

• Completing and mailing the registration card
• Scanning the QR code and completing the online form

• Going online to powerequipment.honda.com/reg

BEFORE EACH OPERATION

Your safety is your responsibility. A little time spent in preparation will significantly reduce your risk of injury.
Read and understand this manual. Know what the controls do and how to operate them.
Familiarize yourself with the tiller and its operation before you begin using it. Know how to quickly disengage the controls and shut off the engine in case of an emergency.

Check Your Tiller

For your safety, to ensure compliance with environmental regulations, and to maximize the service life of your mini-tiller, it is very important to take a few moments before you operate the tiller to check its condition. Be sure to take care of any problem you find, or have your servicing dealer correct it, before you operate the tiller.

Improperly maintaining this mini-tiller, or failing to correct a problem before operation, could cause a serious malfunction.
Some malfunctions can seriously hurt or kill you.
Always perform a pre-operation inspection before each operation, and correct any problem.

• Make sure the tiller is on a level surface.
• Look around and underneath the tiller for signs of oil or gasoline leaks.
• Look for signs of damage.
• Check each control for proper operation.
• Check the tines for wear. Replace as necessary.
• Check that all nuts, bolts, and screws are tightened.
• Check the air filter and oil level
• Check the fuel level. Starting with a full tank will help to eliminate or reduce operating interruptions for refueling.

Check Your Tilling Area

For your safety and the safety of others, always inspect the area before operating the mini-tiller.
Anything that can be picked up by the tines and thrown is a potential hazard to you and others. Look for things like stones, sticks, nails, and wire, and remove them from the tilling area. If a foreign object is struck with the tiller, stop the engine, remove the spark plug cap, thoroughly inspect the tiller for any damage, and repair any damage before restarting and operating the tiller.
Never operate the tiller without good visibility or light.
People and animals near the tilling area can move into your tillers path or into a position where they could be struck by thrown objects. Clear the area of pets and people, especially children. Their safety is your responsibility. Stay alert for hidden hazards or traffic. Exercise extreme caution when crossing gravel surfaces.
Check the condition of the ground. Adjust your tiller's drag bar accordingly.

Tine Installation

Make sure the tines are installed properly with the tine blades angled inward and the tine spacers facing each other. The leading edge of each blade is slanted. Install the lock pin in the direction shown.

Drag Bar Installation

1. Make sure the engine switch is in the OFF position before installing the drag bar.
2. Remove the lock pin and the 6 x 25 mm clevis pin.
3. Install the drag bar angled to the rear. Adjust the height to one of 4 height positions and insert the 6 x 25 mm clevis pin. Secure with the lock pin.

See "Tiller Operation" for additional information.
When your tilling job is completed, reinstall the transport wheels onto the drag bar.

Moving the Tiller

The tiller has wheels to allow easy maneuvering to and from the work area.
Do not transport the tiller with the engine running. Never operate the tiller at high transport speeds on hard or slippery surfaces.

1. Install the wheels by inserting the wheel mount onto the drag bar. Secure with the locking clevis pin.
   
2. Before tilling, remove the wheels from the drag bar.

Check the Engine Oil Level

Check the engine oil level before each use, or every 10 hours if operated continuously. Rest the tiller on a level surface with the engine stopped.

1. Tip the tiller on its carry handlebar as shown.
2. Remove any dirt from around the cap/dipstick area.
3. Remove the oil filler cap/dipstick and wipe it clean.
   
4. Insert and remove the dipstick without screwing it into the filler opening. Check the oil level shown on the dipstick.
5. If the oil level is low, fill to the edge of the oil filler hole with the recommended oil. Avoid overfilling or underfilling, as the oil capacity is small. Be sure the engine is in a level position, as shown.
   
   NOTICE
   Running the engine with a low oil level can cause engine damage. This type of damage is not covered by the DISTRIBUTOR'S LIMITED WARRANTY.
6. Screw in the oil filler cap/dipstick securely.

Add Fuel

This engine is certified to operate on regular gasoline with a pump octane rating of 86 or higher.
Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt or water in the fuel tank.
You may use regular unleaded gasoline containing no more than 10% ethanol (E10) or 5% methanol by volume. In addition, methanol must contain cosolvents and corrosion inhibitors.
Use of fuels with content of ethanol or methanol greater than shown above may cause starting and/or performance problems. It may also damage metal, rubber, and plastic parts of the fuel system.
Engine damage or performance problems that result from using a fuel with percentages of ethanol or methanol greater than shown are not covered under warranty.

Gasoline is highly flammable and explosive.
You can be burned or seriously injured when refueling.

• Stop the engine and let it cool before refueling
• Keep heat, sparks, and flame away
• Refuel only outdoors
• Wipe up spills immediately

NOTICE
If your equipment will be used on an infrequent or intermittent basis, (more than 4 weeks before next use), refer to "AVOIDING FUEL-RELATED PROBLEMS" for information regarding fuel deterioration.

1. To refuel, set the tiller on level ground and remove the fuel tank cap.
2. Fill the tank with gasoline to the shoulder of the filler neck.
3. Refuel carefully to avoid spilling fuel. Do not overfill.
4. After refueling, tighten the fuel tank cap securely.
   Move the tiller at least 3 meters (10 feet) away from the fueling source and site before starting the engine.
   NOTICE
   Fuel can damage paint and plastic. Be careful not to spill fuel when filling your fuel tank. Damage caused by spilled fuel is not covered by the DISTRIBUTOR'S LIMITED WARRANTY.

OPERATION

For your safety, avoid starting or operating the engine in an enclosed area, such as a garage. Your tillers exhaust contains poisonous carbon monoxide gas, which can collect rapidly in an enclosed area and cause illness or death.

Exhaust contains poisonous carbon monoxide gas that can build up to dangerous levels in closed areas.
Breathing carbon monoxide can cause unconsciousness or death.
Never run the mini-tiller in a closed, or even partially closed area where people may be present.
Do not overload the tiller by attempting to till or cultivate too deep at too fast a rate. Be careful when tilling in hard ground. The tines may catch in the ground and propel the tiller forward. If this occurs, let go of the handlebars and do not restrain the machine. Use extreme caution when reversing or pulling the tiller toward you. To avoid getting pinned against a structure, ensure adequate distance before backing up near a wall or fence.
If the tiller starts to shake or vibrate, stop the engine immediately. After the tiller tines have completely stopped, inspect them to determine the cause of the vibration. Sudden vibration is a sign of a hazardous problem, such as a loose or damaged tilling tines (or tiller attachment), hidden objects in the soil, or the ground that is too hard to till. Do not operate the tiller until the problem is corrected.
Prolonged exposure to vibration may cause Hand-Arm Vibration Syndrome (HAVS). Symptoms include loss of skin color in the hands and numbness or a painful tingling sensation in the fingers, hands, and arms. Regular users of any power equipment may feel the numbness or pain spontaneously, at any time, not just after using the equipment. If any of these symptoms occur, see a physician immediately.

Safe Tilling Practices

Honda tillers are designed to give safe and dependable service if operated according to instructions and intended use.
Honda tillers are intended to be used by an experienced, trained operator who is familiar with the use of power equipment. Never allow a child to operate this tiller. Do not allow an inexperienced, untrained adult operator to use this tiller without proper instruction. Operating this equipment requires special effort on your part to ensure your safety and the safety of others. Read and understand this owner's manual.
Powered walk-behind tiller work is strenuous. You must be mentally alert and in good physical condition to operate the tiller. Do not operate the tiller if you are tired, ill, or under the influence of alcohol, medication, or any substance that might impair your vision, dexterity, or judgment.
If you have any physical problem that may be aggravated by strenuous work, consult your physician before operating the tiller.

Avoid Rotating Tines
The rotating tines can cause injury. Do not allow hands, feet, other body parts, or clothing near the rotating tines or any other moving part. Keep away from the tine shield whenever the engine is running. If you need to unclog or adjust the tines, or work around the tines for any reason, always stop the engine. Never attempt to make any adjustments while the engine is running. If you need to clean or handle the tines, disconnect the spark plug cap and keep the cap away from the plug to prevent accidental starting.

Clear Tilling Area
The tiller tines can throw rocks and other objects with enough force to cause injury. Before tilling, carefully inspect the area and remove all large debris.

Keep Shields in Place
Guards and shields are designed to protect you from being hit by thrown objects. They also help protect you from hot engine parts and moving components. For your safety and the safety of others, keep all guards and shields in place when operating the tiller.

Refuel with Care
To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely flammable and gasoline vapor can explode. Refuel only outdoors, in a well-ventilated area, with the engine off.
Never fill gasoline containers inside a vehicle or on a truck bed with a plastic liner. Always place gasoline containers on the ground away from your vehicle before filling. Remove the tiller from the truck or trailer and refuel it on the ground. If this is not possible, then refuel the tiller with a portable gasoline container, rather than the gasoline dispenser nozzle. Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete, and do not use a nozzle lock-open device.
If gasoline is spilled on your clothing, change your clothing immediately. If gasoline is spilled, do not attempt to start the engine until you move the tiller away from the area of spillage to avoid creating any source of ignition until the gasoline vapors have dissipated.
Never smoke near gasoline, and keep other flames and sparks away. When the engine is running, never remove the gas cap or add gasoline. Always store gasoline in an approved container.

Wear Protective Clothing
Wearing protective clothing will reduce your risk of injury. Long pants and eye protection reduce the risk of injuries from thrown objects. Wear gloves at all times to protect your hands from injury. Sturdy shoes with aggressive soles will help protect your feet and give you better traction on slopes or uneven ground. Exercise caution to avoid slipping and falling. Do not operate the tiller wearing short pants (shorts) or open-toed shoes. Clothing worn by the operator should be close-fitting. Loose clothing should not be permitted because it may get caught in moving parts. Tie up or restrain long hair.

Turn Engine Off When Not Tilling
Stop the engine when leaving the tiller unattended. If you need to leave the tiller for any reason, even just to inspect the area ahead, always stop the engine.

Attachments and Modifications

Do not make any modifications to your tiller. Modifying your tiller or installing non-Honda attachments can make your tiller unsafe.
If you need attachments for your tiller, use only Honda Genuine attachments. These products have been designed for your tiller.
Non-Honda attachments are usually designed for universal applications. Although aftermarket attachments may fit on your tiller, they may not meet factory specifications and could make your tiller unsafe.

Starting the Engine

1. Disengage the throttle (clutch) lever before starting the engine.
2. Move the engine switch to the ON position.
3. To start a cold engine, move the choke lever up to the CLOSED () position.
   To restart a warm engine, leave the choke lever down in the OPEN position.
   
4. To start a cold engine, or after refueling an engine that has run out of fuel, press the priming bulb repeatedly until fuel can be seen in the clear-plastic fuel-return tube.
   To restart a warm engine, it is not necessary to press the priming bulb.
5. Place your left hand on the carrying handle and hold it firmly. Make sure your feet are away from the tiller tines. With your right hand, pull the starter grip lightly until you feel resistance, then pull briskly. Return the starter grip gently.
6. If the choke lever was moved to the CLOSED () position, gradually move it to the OPEN position as the engine warms up.
   Allow the engine to warm up for a few moments after starting a cold engine.
   The tiller tines should not rotate with the engine idling. If there is rotation at idle, adjust the idle speed correctly before using the tiller.

Stopping the Engine

1. Release the throttle lever.
2. Move the engine switch to the OFF position.

See "STORAGE" for periods of inactivity that exceed 4 weeks.

Tiller Operation

Before tilling, remove the wheels from the drag bar
The tiller tines begin to rotate once the engine is started and the throttle lever is squeezed. The tines may momentarily rotate after the throttle lever is released. Stop the engine when leaving the tiller unattended.
The tiller is designed to operate either with the drag bar installed for depth control in the forward direction or with the drag bar removed for cultivating.

Cultivating Without the Drag Bar
Cultivating can be accomplished by removing the drag bar and repeatedly moving the tiller in a forward/reverse direction. This allows the tines to dig in both directions.
Be aware that the tiller can be difficult to control without the drag bar installed.

Narrow Cultivating
The two outer tines can be removed to give you a narrower cultivating width. This width is approximately 5 inches. This gives you the ability to get between very closely spaced plants.

To remove the two outer tines, pull the lock pin out of the hole in the end of the tine shaft. Slide the outside tine set off the tine shaft. Secure the inner set of tines onto the tine shaft by placing the lock pins in the inside set of lock pin holes.

Tilling With the Drag Bar Installed

1. Install the drag bar and set the tilling depth by moving the drag bar up or down into one of 4 height positions.
   The ideal height of the drag bar will depend on the type of soil being tilled and soil conditions at the time of tilling. In general, however, the drag bar should be adjusted so that the tiller is tilted slightly backward (6 ~ 8°).
2. Start the engine.
3. Tilt the tiller back until the tines are off the ground. Squeeze the throttle lever to full speed position (lever tight against the grip).
4. Lower the front of the tiller until the tines begin to dig into the ground.
5. Lower the handle slightly so the front of the tiller is raised about 6 ~ 8°. To get the maximum advantage from the tiller, hold the tiller at this angle while you are tilling the ground.
   

Operating Tips

• If the tiller tends to move forward rapidly, push down on the handlebars to allow the drag bar to penetrate the soil and slow the forward motion of the tiller. Continue to press down until the tiller tines have dug to a desired depth that allows easy tiller handling.
• If the tines dig in but the tiller will not move forward, ease up on the handlebars and move the handlebars from side-to-side. If the tiller still digs in, but will not move forward, raise the drag bar up one hole.
• When turning, push down on the handlebars to bring the tiller's weight to the rear; this will make turning easier.

SERVICING YOUR TILLER

Proper maintenance is essential for safe, economical, and trouble-free operation. It also helps reduce air pollution. Keep the tiller, attachments, and accessories in safe working condition.

Improper maintenance, or failure to correct a problem before operation, can cause a serious malfunction in which you can be seriously hurt or killed.
Some malfunctions can seriously hurt or kill you.
Always follow the inspection and maintenance recommendations and schedules in this owner's manual.
To help you properly care for your tiller, the following pages include a maintenance schedule, routine inspection procedures, and simple maintenance procedures using basic hand tools. Other service tasks that are more difficult, or require special tools, are best handled by professionals and are normally performed by a Honda technician or other qualified mechanic.
The maintenance schedule applies to normal operating conditions. If you operate your tiller under severe conditions, such as sustained high-load or high-temperature operation, or use in unusually wet or dusty conditions, consult your servicing dealer for recommendations applicable to your individual needs and use.
Remember that an authorized Honda servicing dealer knows your tiller best and is fully equipped to maintain and repair it.
To ensure the best quality and reliability, use only new, Honda Genuine parts or their equivalents for repair and replacement.
Maintenance, replacement, or repair of the emission control devices and systems may be performed by any engine repair establishment or individual, using parts that are "certified" to EPA standards.

Maintenance Safety

Some of the most important safety precautions follow. However, we cannot warn you of every conceivable hazard that can arise in performing maintenance. Only you can decide whether or not you should perform a given task.

Improper maintenance can cause an unsafe condition.
Failure to properly follow maintenance instructions and precautions can cause you to be seriously hurt or killed.
Always follow the procedures and precautions in this manual.

Safety Precautions

• Make sure the engine is off and all moving parts have stopped before you begin any cleaning, maintenance, adjustments, inspections, or repairs. This will eliminate several potential hazards:
  • Carbon monoxide poisoning from engine exhaust.
    Be sure there is adequate ventilation whenever you operate the engine.
  • Burns from hot parts.
    Let the engine and exhaust system cool before touching.
  • Injury from moving parts.
    Do not run the engine unless instructed to do so.
• Read the instructions before you begin, and make sure you have the tools and skills required.
• To reduce the possibility of fire or explosion, be careful when working around gasoline. Use only a nonflammable solvent, not gasoline, to clean parts. Keep cigarettes, sparks, and flames away from all fuel-related parts.

Maintenance Schedule

1. For professional commercial use, log hours of operation to determine proper maintenance intervals.
2. Service more frequently when used in dusty areas.
3. These items should be serviced by an authorized Honda servicing dealer, unless you have the proper tools and are mechanically proficient.

Failure to follow this maintenance schedule could result in non-warrantable failure.

Oil Change

Change the oil after the first 10 hours of use. Thereafter, change the oil every 6 months or 50 hours of use. Change the oil more often when used in dusty areas.
Drain the used oil while the engine is warm. Warm oil drains quickly and completely.

1. Place a suitable container below the engine to catch the used oil.
2. Clean dirt from around the oil filler cap/dipstick.
3. Remove the oil filler cap/dipstick.
4. Tip the tiller to drain the used oil through the oil filler opening. Allow the used oil to drain completely.
   
   Please dispose of used motor oil in a manner that is compatible with the environment. We suggest you take used oil in a sealed container to your local recycling center or service station for reclamation. Do not throw it in the trash, pour it on the ground, or pour it down a drain.
5. With the engine resting on the carrying handlebar on a level surface, fill with the recommended oil to the edge of the oil filler hole. Do not overfill.
   Refill amount: 2.7 fl. oz (80 cc)
6. Screw in the filler cap/dipstick securely.

Engine Oil Recommendations

Oil is a major factor affecting performance and service life. Always change the oil in accordance with the MAINTENANCE SCHEDULE.
SAE 10W-30 is recommended for general use. Other viscosities shown in the chart may be used when the average temperature in your area is within the recommended range.

The SAE oil viscosity and service category are in the API label on the oil container. Honda recommends that you use API service category SJ or later oil.

NOTICE
Using nondetergent oil can shorten the engine's service life, and using 2-stroke oil can damage the engine.

Air Filter

Check the air filter after each use. Thereafter, clean the filter every 25 hours of use. Clean the filter more often when used in dusty areas. Replace the filter every 2 years or 150 hours of use.
A properly maintained air filter will help prevent dirt from entering your engine. Dirt entering the carburetor can be drawn into small passages in the carburetor and cause premature engine wear. These small passages can become blocked, causing starting or running problems.
We recommend the use of a Honda Genuine air filter to ensure it seals and performs as designed. Using a non-Honda air filter can result in dirt bypassing the filter, causing damage to the engine or fuel system.
NOTICE
Operating the engine without an air filter, or with a dry or damaged air filter, or with an improperly installed air filter cover will allow dirt to enter the engine causing rapid engine wear. Make sure the air filter is properly installed and flush with the air filter base before installing the air filter cover. This type of damage is not covered by the DISTRIBUTOR'S LIMITED WARRANTY.

Inspection

1. Move the choke lever to the CLOSED () position to prevent dirt from entering the engine.
   
2. Squeeze together the upper tabs at the top of the air filter cover to release it from its catch, then flip the cover down to remove it.
3. Check the foam air filter to be sure it is clean, properly oiled, and in good condition.
4. If the filter is dirty, clean it as described under "Cleaning". Replace the air filter element if it is damaged.
5. Align the air filter with the air filter base as shown. Reinstall the air filter by locating the three base pegs into the three air filter holes. Slide the air filter over the pegs until it is flush with the air filter base.
   
6. Reinstall the air filter cover by hooking the two lower tabs on the bottom of the cover and snapping the upper tabs into place.

Cleaning
A dirty air filter will restrict air flow to the carburetor, reducing engine performance. If you operate the tiller in very dusty areas, clean the air filter more often than specified in the MAINTENANCE SCHEDULE.
We recommend using Honda Air Filter Oil, which is available from your authorized Honda dealer.

1. Remove the foam air filter from the air filter base.
2. Clean the filter in warm soapy water and rinse, or clean with nonflammable solvent.
3. Squeeze excess water from the filter and allow it to dry thoroughly.
4. Place the filter in a resealable plastic bag and pour about 1 oz. (1/4 of a bottle) of Honda Air Filter Oil into the bag. Seal the bag closed and knead the bag for one minute or longer until the oil is completely distributed into the foam filter. Squeeze excess oil from the filter.
5. Remove the filter from the bag.
   We recommend using latex gloves when removing the oiled foam air filter from the bag.
   NOTICE
   Operating the engine with a dry air filter will allow dust to enter the engine causing engine damage. The air filter must be oiled after cleaning.
6. Wipe dirt from the air filter base and cover using a moist rag. Be careful to prevent dirt from entering the carburetor.
7. Reinstall the foam air filter and air filter cover.

Spark Plug

Check the spark plug every year or 100 hours of use. Replace the spark plug every 2 years or after 300 hours of use.
Required Spark Plug: NGK - CMR5H
NOTICE
An incorrect spark plug can cause engine damage.

1. Use a 4 mm Allen wrench to loosen the 5 x 12 mm hex bolt and remove the fan cover.
   
2. Disconnect the spark plug cap, and remove any dirt from around the spark plug area.
3. Remove the spark plug with a 5/8-inch spark plug wrench.
   
4. Inspect the spark plug. Replace it if the electrodes are worn, or if the insulator is cracked or chipped.
5. Measure the spark plug electrode gap with a suitable gauge.
   GAP: 0.024 ~ 0.028 in (0.60 ~ 0.70 mm)
   Correct the gap, if necessary, by carefully bending the side electrode.
6. Install the spark plug carefully, by hand, to avoid cross-threading.
7. After the spark plug seats, tighten with a 5/8-inch spark plug wrench to compress the washer.
   If reinstalling the used spark plug, tighten 1/8 ~ 1/4 turn after the spark plug seats.
   If installing a new spark plug, tighten 1/2 turn after the spark plug seats.
   Spark Plug Torque: 8.7 ft-lb (11.8 N•m)
   
   NOTICE
   A loose spark plug can overheat and damage the engine. Overtightening the spark plug can damage the threads in the cylinder head.
8. Attach the spark plug cap.
9. Install the fan cover and 5 x 12 mm hex bolt and tighten securely.

Spark Arrester

(optional part)
The spark arrester must be serviced every 100 hours to keep it functioning as designed.
Your tiller engine is not factory-equipped with a spark arrester. In some areas, it is illegal to operate an engine without a spark arrester. Check local laws and regulations. An optional USDA approved spark arrester is available from an authorized Honda servicing dealer.
If the engine has been running, the muffler will be very hot. Allow the muffler to cool before servicing the spark arrester.

1. Loosen the 5 mm hex bolt, and then remove the fan cover.
2. Remove the 3 x 6 mm self-tapping screw from the spark arrester, and remove the spark arrester from the muffler.
   
3. Use a brush to remove carbon deposits from the spark arrester screen. Be careful to avoid damaging the screen.
   
4. The spark arrester must be free of breaks and holes. Replace the spark arrester if it is damaged.
5. Install the spark arrester in the reverse order of disassembly.
6. Install the fan cover, and tighten the 5 mm hex bolt securely.

Cooling Fin Inspection

Inspect the engine cooling fins every 50 hours of operation. You should clean out any dirt and debris if air is obstructed from flowing across the cooling fins.

1. Loosen the 5 mm hex bolt, then remove the fan cover.
2. Remove all dirt and debris from the cooling fins.
3. Install the fan cover, and tighten the 5 mm hex bolt securely.

Throttle Cable Inspection

Verify the throttle trigger operates smoothly, releases properly, and the throttle cable is undamaged. If there is visible damage, or if the throttle lever does not operate smoothly or release properly, take your tiller to your authorized Honda servicing dealer.
Check the freeplay at the end of the throttle lever.
If adjustment is needed, see the Throttle Cable Adjustment procedure.

Throttle Cable Adjustment

1. Loosen the lock nuts with a 10 mm wrench, and move the adjuster in or out as required.
   Throttle Lever Freeplay:
   3/16 ~ 5/16 in (5 ~ 8 mm)
2. Tighten the lock nuts and recheck throttle lever freeplay.

Carburetor Adjustment
A tachometer is required to adjust the idle speed. If you do not have one, take your tiller to an authorized Honda servicing dealer to perform idle speed adjustment.

1. Start the engine outdoors, and allow it to warm up to normal operating temperature.
2. Turn the throttle stop screw to obtain a stable idle, below the speed at which the tiller tines begin to turn.

Standard Idle Speed: 3,100 ± 200 rpm

Fuel Tube and Fuel Cap Inspection

Check the fuel supply, return tubes, priming bulb, and fuel cap. Replace any tube or the priming bulb if damaged, stiff, cracked, or leaking.
Inspect the fuel cap for damage.

1. Tilt the tiller forward and check for leaks.
2. Replace if necessary.

Refer to the Honda shop manual for tube or priming bulb replacement instructions, or take the tiller to an authorized Honda servicing dealer.

Fuel Filter and Fuel Tank Cleaning

1. Remove the fuel tank cap.
2. Tip the tiller and empty the fuel tank into an approved gasoline container. Use a funnel to avoid spilling gasoline.
3. Pull the fuel filter out through the fuel filler neck by hooking the black fuel supply tube with a piece of wire, such as a partly straightened paper clip.
4. Inspect the fuel filter. If the fuel filter is dirty, wash it with nonflammable solvent. Be careful to avoid damaging the filter.
5. Replace the filter if it is damaged or excessively dirty.
6. Rinse sediment from the fuel tank with nonflammable solvent.
7. Insert the fuel filter in the fuel tank, and install the fuel tank cap.

Transmission Lubrication

The transmission is pre-lubricated at the factory.
At the beginning of each tilling season, or after every 25 hours of use during the season, the transmission should be filled with grease.
Use Shell Alvania EP71125 NLGI #2 extreme pressure lithium grease or equivalent which is usually available in disposable tubes at most hardware or automotive parts stores.

1. Place the tiller on the left side as shown.
2. Remove the lock pin from the right side tine shaft by turning it UP [a] and pulling it out [b] as shown. Wearing heavy gloves, remove both right side tines.
3. Remove any dirt from around the screws and then remove the air vent screw and fill hole screw from the transmission.
4. Fill the transmission by using a grease gun or grease applicator at the fill hole screw opening. Push the gun or applicator against the opening to seal the nozzle of the gun or applicator against the casting embossment. Apply grease until grease begins to come out of the top air vent hole.
5. Reinstall the air vent screw and fill hole screw.
6. Clean the tine shaft and place a few drops of oil on the tine shaft before installing the tines.
7. Wear heavy gloves and reinstall the tines in the reverse order of removal.
8. Install the lock pin [c] through the round side of the tine shaft hole then turn it over [d] to lock it in place.

TRANSPORTING

Follow Honda's recommendations for safe loading, unloading, and transporting your tiller.

Before Loading

If the engine has been running, allow it to cool for at least 15 minutes before loading the tiller on the transport vehicle. A hot engine and exhaust system can burn you and can ignite some materials.

1. Turn the engine switch to the OFF position.
2. Make sure the fuel cap is securely tightened.
3. Install the wheels in the transport position for greater ground clearance and ease of movement.
   

Loading

If necessary, loosen the handlebar knobs so that the tiller upper handlebar can be collapsed. Be careful that the throttle cable and engine switch wire are not pinched or bent when collapsing the upper handlebar. The cable and wires should be routed on the outside of the handlebar when the handlebar is folded.
Secure the tiller by tying around the lower handlebars just in front and back of the engine as shown.

STORAGE

Proper storage preparation is essential for keeping your mini-tiller trouble free and looking good. Follow Honda's recommendations for safe storage of your tiller.
To help keep rust and corrosion from impairing your tillers function and appearance, and to make the engine easier to start after storage, follow the instructions described in this section to:

• Drain or treat the fuel
• Change the oil and coat the engine cylinder
• Clean the tiller and engine
• Choose a storage location
• Install the wheels in the storage position to allow the tiller to be stored in an upright position

Fuel

See "AVOIDING FUEL-RELATED PROBLEMS" for a list of recommended procedures to avoid fuel related problems.
The DISTRIBUTOR'S LIMITED WARRANTY does not cover fuel system damage or engine performance problems resulting from neglected storage preparation.

Draining the Fuel Tank and Carburetor
Draining the fuel tank and carburetor must be done outside.
Disconnect the spark plug cap. Make sure the engine switch is in the OFF position.
Drain fuel from the tank into an approved container. Press the primer bulb several times to draw any fuel out of the carburetor back to the fuel tank, and then drain this fuel from the tank.

Oil

Change the engine oil.
Add oil in the engine cylinder to prevent rust.

1. Remove the spark plug.
2. Pour a 1/4 teaspoon (1 ~ 3 cc) of clean engine oil into the cylinder to keep it from rusting.
3. Pull the starter rope several times to distribute the oil in the cylinder.
4. Reinstall the spark plug.
5. Pull the starter rope slowly until resistance is felt, and then return the starter grip gently. This will close the valves so moisture cannot enter the engine cylinder.

Cleaning

1. Wash the tiller, including the area around the tiller tines.
2. Wash the engine by hand, and be careful to prevent water from entering the air cleaner.
   NOTICE
   Using a garden hose or pressure washing equipment can force water into the air cleaner. Water in the air cleaner will soak the filter and can enter the carburetor or engine, causing damage.
3. Water on a hot engine can cause damage. If the engine has been running, allow it to cool for at least 1/2 hour before washing.
4. If using a garden hose or pressure washing equipment to clean the tiller, be careful to avoid getting water into controls and cables, or anywhere near the engine air cleaner or muffler opening.
5. After washing the tiller, wipe dry all accessible surfaces.
6. Start the engine outdoors, and let it run until it reaches normal operating temperature to evaporate any water remaining on the engine.
7. Stop the engine and allow it to cool.
8. After the tiller is clean and dry, touch up any damaged paint, and coat other areas that may rust with a light film of oil.

Storage Location

If your tiller will be stored with gasoline in the fuel tank and carburetor, it is important to reduce the hazard of gasoline vapor ignition. Select a well-ventilated dry storage area away from any appliance that operates with a flame, such as a furnace, water heater, or clothes dryer. Also avoid any area with a spark-producing electric motor, or where power tools are operated. Allow the engine to cool before storing in any enclosure.
Place the tiller with its wheels on a level surface. Tilting can cause fuel or oil leakage.
With the engine and exhaust system cool, cover the tiller to keep out dust. A hot engine and exhaust system can ignite or melt some materials. Do not use sheet plastic as a dust cover. A nonporous cover will trap moisture around the tiller, promoting rust and corrosion.

Loading

If necessary, loosen the handlebar knobs so that the tiller upper handlebar can be collapsed. Be careful that the throttle cable and engine switch wire are not pinched or bent when collapsing the upper handlebar. The cable and wires should be routed on the outside of the handlebar when the handlebar is folded.

Removing From Storage

When unfolding the handlebar, do not allow the cable and wires to become pinched between the upper and lower handlebars. Be sure to lock the handlebar knobs to secure the handlebar in the tilling position.
Check your tiller as described in BEFORE EACH OPERATION.
If the cylinder was coated with oil during storage preparation, the engine may smoke briefly at startup. This is normal.

TROUBLESHOOTING

Engine Will Not Start

Possible Cause	Correction
Engine switch OFF.	Turn the engine switch ON.
Choke lever not in CLOSED () position (cold engine).	Move the lever to the CLOSED () position.
Out of fuel.	Add fuel and press the priming bulb to fill the carburetor.
Bad fuel, tiller stored without treating or draining gasoline, refueled with bad gasoline.	Drain the fuel tank. Refuel with fresh gasoline.
Spark plug faulty, fouled, or has incorrect gap.	Gap or replace the spark plug.
Fuel filter restricted, carburetor malfunction, ignition malfunction, valves stuck, etc.	Have an authorized Honda servicing dealer replace or repair faulty components as needed.

Loss of Power

Tiller Tines Won't Stop Turning

TECHNICAL INFORMATION

Serial Number Locations

There are two serial numbers, one for the engine and one for the frame. Record the engine and frame serial numbers. You will need these serial numbers when ordering parts and when making technical or warranty inquiries.

High Altitude Operation

At high altitudes, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and fuel consumption will increase. A very rich mixture will also foul the spark plug and cause hard starting. Operation at an altitude that differs from that at which this engine was certified, for extended periods of time, may increase emissions.
High altitude performance can be improved by specific modifications to the carburetor. If you always operate your tiller at altitudes above 2,000 feet (610 meters), have your servicing dealer perform this carburetor modification. This engine, when operated at high altitude with the carburetor modifications for high altitude use, will meet each emission standard throughout its useful life.
Even with carburetor modification, engine horsepower will decrease about 3.5% for each 1,000-foot (300-meter) increase in altitude. The effect of altitude on horsepower will be greater than this if no carburetor modification is made.
NOTICE
When the carburetor has been modified for high altitude operation, the air-fuel mixture will be too lean for low altitude use. Operation at altitudes below 2,000 feet (610 meters) with a modified carburetor may cause the engine to overheat and result in serious engine damage. For use at low altitudes, have your servicing dealer return the carburetor to original factory specifications.

Emission Control System

Source of Emissions
The combustion process produces carbon monoxide, oxides of nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of nitrogen is very important because, under certain conditions, they react to form photochemical smog when subjected to sunlight. Carbon monoxide does not react in the same way, but it is toxic.
Honda utilizes appropriate air/fuel ratios and other emissions control systems to reduce the emissions of carbon monoxide, oxides of nitrogen, and hydrocarbons. Additionally, Honda fuel systems utilize components and control technologies to reduce evaporative emissions.

Tampering and Altering

NOTICE
Tampering is a violation of federal and California law.
Tampering with or altering the emissions control system may increase emissions beyond the legal limit. Among those acts that constitute tampering are:

• Removal or alteration of any part of the intake, fuel, or exhaust systems
• Alterations that would cause the engine to operate outside its design parameters

Problems That May Affect Emissions
If you are aware of any of the following symptoms, have your engine inspected and repaired by your authorized Honda Power Equipment dealer.

• Hard starting or stalling after starting.
• Rough idle.
• Misfiring or backfiring under load.
• Afterburning (backfiring).
• Black exhaust smoke or high fuel consumption.

Replacement Parts
The emissions control systems on your new Honda engine were designed, built, and certified to conform with EPA, California (models certified for sale in California only), and Canadian emissions regulations. We recommend the use of Honda Genuine parts whenever you have maintenance done. These original-design replacement parts are manufactured to the same standards as the original parts, so you can be confident of their performance. Honda cannot deny coverage under the emission warranty solely for the use of non-Honda replacement parts or service performed at a location other than an authorized Honda dealership; you may use comparable parts certified by the EPA, CARB or ECCC, as applicable, and have service performed at non-Honda locations. However, the use of replacement parts that are not of the original design and quality may impair the effectiveness of your emissions control system.
A manufacturer of an aftermarket part assumes the responsibility that the part will not adversely affect emissions performance. The manufacturer or rebuilder of the part must certify that use of the part will not result in a failure of the engine to comply with emissions regulations.

Maintenance
As the power equipment engine owner, you are responsible for completing all required maintenance listed in your owner's manual. Honda recommends that you retain all receipts covering maintenance on your power equipment engine, but Honda cannot deny warranty coverage solely for the lack of receipts or for your failure to ensure that all scheduled maintenance has been completed.
Follow the MAINTENANCE SCHEDULE. Remember that this schedule is based on the assumption that your Honda engine product will be used for its designed purpose. Sustained high-load or high-temperature operation, or use in dusty conditions, will require more frequent service.

Air Index

(Models certified for sale in California)
An Air Index Information label is applied to engines certified to an emission durability time period in accordance with the requirements of the California Air Resources Board.
The bar graph is intended to provide you, our customer, the ability to compare the emissions performance of available engines. The lower the Air Index, the less pollution.
The durability description is intended to provide you with information relating to the engine's emission durability period. The descriptive term indicates the useful life period for the engine's emission control system. See your "EMISSION CONTROL SYSTEM WARRANTY" for additional information.

Specifications

Engine

Tiller

Maintenance

Tune-up

AVOIDING FUEL-RELATED PROBLEMS

When maintained properly, your Honda tiller should provide years of trouble-free operation. This includes the fuel system. However, gasoline can quickly deteriorate, causing starting or running problems and, in some cases, damage to the fuel system. Most fuel-related problems can be avoided by following the precautions listed below. Fuel system damage and engine performance problems resulting from deteriorated fuel are not covered by the DISTRIBUTOR'S LIMITED WARRANTY.

Follow These Precautions to Prevent Most Fuel-Related Problems

We recommend Pro Honda Fuel Stabilizer, that has improved formulation with added corrosion protection.

CUSTOMER INFORMATION

Parts, Accessories, and Service Items

Contact an authorized Honda servicing dealer to purchase any of these (or other) Honda Genuine items for your tiller.

Replacement Parts

Accessories

Service Items

Dealer Locator Information

To find an Authorized Honda Servicing Dealer anywhere in the United States, visit powerequipment.honda.com and click on Find a Dealer.

How to Contact Honda

Honda Power Equipment dealership personnel are trained professionals. They should be able to answer any question you may have. If you encounter a problem that your dealer does not solve to your satisfaction, please discuss it with the dealership's management. The Service Manager or General Manager can help. Almost all problems are solved in this way.
If you are dissatisfied with the decision made by the dealership's management, contact the Honda Power Equipment Customer Relations Office. You can write:

American Honda Motor Co., Inc.
Power Sports and Products Division
Customer Relations Office
4900 Marconi Drive
Alpharetta, GA
30005-8847
Or telephone: (770) 497-6400
M-F, 9:00 a.m. - 7:30 p.m. ET
When you write or call, please give us this information:

• Model and serial numbers
• Name of the dealer who sold the tiller to you
• Name and address of the dealer who services your tiller
• Date of purchase
• Your name, address, and telephone number
• A detailed description of the problem

Honda Publications

These publications will give you information for maintaining and repairing your tiller.

Parts Catalog
This manual provides complete, illustrated parts lists for your tiller. Visit powerequipment.honda.com and then click on Support for free online access to parts catalog. It is also available for purchase in paper form by visiting publications.powerequipment.honda.com.

Frequently Asked Questions
The Honda Power Equipment web site provides additional information for users of Honda power equipment. Visit powerequipment.honda.com and click on FAQs or scan the QR code shown.

PRODUCT REGISTRATION

Thank you for choosing Honda. To ensure you receive important service information in the event of a product update or recall, please register your mini-tiller within 30 days of purchase.
From time to time, American Honda conducts sales promotions that require you to register your tiller within 30 days of purchase. If you purchased your Honda mini-tiller during one of these promotions, you must register your tiller within 30 days.
Your information will remain confidential. It will not be released to any other company or organization.
Failure to register your tiller does not diminish your warranty rights.
Please complete and mail the postage paid card, scan the QR code, or register online at powerequipment.honda.com/reg.

Register Your Product Online

1. Go to powerequipment.honda.com/reg to register your unit.
2. Enter your serial number, and then click Submit.
   
3. Complete the required information and click Submit. It's that simple!
   

NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES
Power Equipment Division
American Honda Motor Co., Inc.
4900 Marconi Dr
Alpharetta GA 30005-9956

QUESTIONS?
Contact your Honda dealer.
There is a dealer locator at powerequipment.honda.com