ECHO GT-225 Manual
Echo GT-225: Your Dependable Grass Trimmer for Effortless Lawn Care
The Echo GT-225 grass trimmer is a versatile tool designed to make lawn care a breeze. Its powerful engine and durable nylon line head tackle overgrown grass and weeds with ease, leaving your lawn looking neat and tidy. With its lightweight design and user-friendly features, the GT-225 offers effortless operation and precise trimming control. Experience the convenience and efficiency of the Echo GT-225, and transform your lawn into a manicured masterpiece.
Tangazo
Tangazo
Operator’s Manual
GT-225
Grass Trimmer
Burn Hazard
The muffler or catalytic muffler and surrounding cover may become extremely hot.
Always keep clear of exhaust and muffler area, otherwise serious personal injury may occur.
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
Read and understand all provided literature before use. Failure to do so could result in serious injury.
Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to change without notice. Illustrations may include optional equipment and accessories, and may not include all standard equipment.
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TABLE OF CONTENTS GT-225
TABLE OF CONTENTS
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GT-225 INTRODUCTION
INTRODUCTION
Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-job dependability. Read and understand this manual and the SAFETY MANUAL. You will find both easy to use and full of helpful operating tips and SAFETY messages.
The Operator’s Manual
Keep it in a safe place for future reference. Contains specifications and information for safety, operation, maintenance, storage and assembly specific to this product.
The Safety Manual
Keep it in a safe place for future reference. Explains possible hazards and the measures you should take to insure safe operation.
SERVICING INFORMATION
Parts and Serial Number
Genuine ECHO Parts and Assemblies for your products are available only from an Authorized ECHO Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you. You can find these numbers on the engine housing. For future reference, write them in the space provided below.
Model No.___________________Serial No.___________________
Warranty Registration
Your bill of sale must be provided to demonstrate proof of warranty.
Service
Service of this product during the warranty period must be performed by an Authorized ECHO Service
Dealer. For the name and address of the Authorized ECHO Service Dealer nearest you, visit echo-latinamerica.com.
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SAFETY
SAFETY
GT-225
Manual Safety Symbols and Important Information
Throughout this manual and on the product itself, you will find safety alerts and helpful, informational messages preceded by symbols or key words. The following is an explanation of those symbols and key words and what they mean to you.
The safety alert symbol accompanied by the word “DANGER” calls attention to an act or condition which WILL lead to serious personal injury or death if not avoided.
The safety alert symbol accompanied by the word “WARNING” calls attention to an act or condition which CAN lead to serious personal injury or death if not avoided.
The safety alert symbol accompanied by the word “CAUTION” calls attention to an act or condition which may lead to minor or moderate personal injury if not avoided.
The enclosed message provides information necessary for the protection of the unit.
Note: This enclosed message provides tips for use, care and maintenance of the unit.
CIRCLE AND SLASH SYMBOL
This symbol means the specific action shown is prohibited. Ignoring these prohibitions can result in serious or fatal injury.
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International Symbols
Symbol Description
Read and understand
Owners
Manual
Symbol
Wear eye, ear and head protection
STOP
Emergency
Stop
Wear hand and foot protection
Use two-handed
Choke Control
“COLD START”
Position
(Choke Closed)
Description
Fuel and Oil mixture
Symbol
Rotating
Cutting
Attachment
Hot Surface
DO NOT smoke near fuel
15 m
(50 feet)
Description
Carburetor
Adjustment -
Low speed mixture
Symbol Description
Carburetor
Adjustment -
High speed mixture
Carburetor
Adjustment -
Idle speed
Safety / Alert
Avoid all power lines. This unit is not insulated against electrical current.
Plan retreat path from falling objects
Do not exceed
10,000 RPM
Primer Bulb
Ignition
ON / OFF
DO NOT allow flames or sparks near fuel
SAFETY
Wear slip resistant footwear
Choke Control
“RUN”
Position
(Choke Open)
Do not use blades
String line only
15 m(50ft)
Keep bystanders and helpers away 15 m
(50 ft.)
Do not operate without guards and shields in place.
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SAFETY
Personal Condition and Safety Equipment
Cancer and Reproductive Harmwww.P65Warnings.ca.gov
GT-225
Users of this product risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. Proper clothing and safety gear must be worn when operating unit.
Physical Condition
Your judgment and physical dexterity may not be good:
• If you are tired or sick.
• If you are taking medication.
• If you have taken alcohol or drugs.
Operate unit only if you are physically and mentally well.
Eye Protection
◆
◆
Eye protection that meets ANSI Z87.1 or CE requirements must be worn whenever you operate the unit.
For additional safety, a full-face shield may be worn over safety glasses or goggles to provide protection from sharp branches or flying debris.
Hand Protection
Wear sturdy, no-slip, rubber work gloves to improve your grip on the handles. Gloves also provide protection against cuts and scratches, cold environments, and reduce the transmission of machine vibration to your hands.
Hearing/Ear Protection
ECHO recommends wearing hearing protection whenever unit is used.
Breathing Protection
Operators who are sensitive to dust or other common airborne allergens may need to wear a dust mask to prevent inhaling these materials while operating unit. Dust masks can provide protection against dust, plant debris, and other plant matter such as pollen. Make sure the mask does not impair your vision, and replace the mask as needed to prevent air restrictions.
Proper Clothing
Wear snug-fitting, durable clothing:
• Pants should have long legs, shirts should have long sleeves.
• DO NOT WEAR SHORTS.
• DO NOT WEAR TIES, SCARVES, JEWELRY, or clothing with loose or hanging items that could become entangled in moving parts or surrounding growth.
• Keep clothing buttoned or zipped, and keep shirt tails tucked in.
Wear sturdy work shoes with nonskid rubber soles:
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• DO NOT WEAR OPEN TOED SHOES.
• DO NOT OPERATE UNIT BAREFOOTED.
Keep long hair away from engine and air intake. Retain hair with cap or net.
Heavy protective clothing can increase operator fatigue, which may lead to heat stroke. Schedule heavy work for early morning or late afternoon hours when temperatures are cooler.
The components of this machine generate an electromagnetic field during operation, which may interfere with some pacemakers.
To reduce the risk of serious or fatal injury, persons with pacemakers should consult with their physician and the pacemaker manufacturer before operating this machine.
In the absence of such information, ECHO does not recommend the use of this machine by anyone who has a pacemaker.
Extended Operation and Extreme Conditions
Prolonged exposure to cold and/or vibration may result in injury. Read and follow all safety and operation instructions to minimize risk of injury. Failure to follow instructions may result in painful wrist/hand/arm injuries.
It is believed that a condition called Raynaud’s Phenomenon, which affects the fingers of certain individuals, may be brought about by exposure to vibration and cold. Exposure to vibration and cold may cause tingling and burning sensations, followed by loss of color and numbness in the fingers. The following precautions are strongly recommended, because the minimum exposure, which might trigger the ailment, is unknown.
• Keep your body warm, especially the head, neck, feet, ankles, hands, and wrists.
• Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks, and also by not smoking.
• Limit the hours of operation. Try to fill each day with jobs where operating the unit or other hand-held power equipment is not required.
• If you experience discomfort, redness, and swelling of the fingers followed by whitening and loss of feeling, consult your physician before further exposing yourself to cold and vibration.
Repetitive Stress Injuries (RSI)
It is believed that overusing the muscles and tendons of the fingers, hands, arms, and shoulders may cause soreness, swelling, numbness, weakness, and extreme pain in those areas. Certain repetitive hand activities may put you at a high risk for developing a
Repetitive Stress Injury (RSI). An extreme RSI condition is Carpal
Tunnel Syndrome (CTS), which could occur when your wrist swells and squeezes a vital nerve that runs through the area. Some believe that prolonged exposure to vibration may contribute to CTS. CTS can cause severe pain for months or even years.
To reduce the risk of RSI/CTS, do the following:
• Avoid using your wrist in a bent, extended, or twisted position.
Instead try to maintain a straight wrist position. Also, when grasping, use your whole hand, not just the thumb and index finger.
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SAFETY GT-225
• Take periodic breaks to minimize repetition and rest your hands.
• Reduce the speed and force with which you do the repetitive movement.
• Do exercise to strengthen the hand and arm muscles.
• Immediately stop using all power equipment and consult a doctor if you feel tingling, numbness, or pain in the fingers, hands, wrists, or arms. The sooner RSI/CTS is diagnosed, the more likely permanent nerve and muscle damage can be prevented.
All over head electrical conductors and communications wires can have electricity flow with high voltages. This unit is not insulated against electrical current. Never touch wires directly or indirectly, otherwise serious injury or death may result.
Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death.
Read the Manuals
• Provide all users of this equipment with the Operator’s Manual and Safety Manual for instructions on Safe
Operation.
Clear the Work Area
• Spectators and fellow workers must be warned, and children and animals prevented from coming nearer than 15 m (50 ft.) while the unit is in use.
Keep a Firm Grip
• Always hold throttle handle and support handle with thumbs and fingers tightly encircling the handles.
Keep a Solid Stance
• Maintain footing and balance at all times. Do not stand on slippery, uneven or unstable surfaces. Do not work in odd positions or on ladders. Do not over reach.
Avoid Hot Surfaces
• Keep exhaust area clear of flammable debris. Avoid contact during and immediately after operation.
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Equipment
SAFETY
Use only ECHO attachments. Serious injury may result from the use of a non-approved attachment combination. ECHO Incorporated will not be responsible for the failure of cutting devices, attachments or accessories which have not been tested and approved by ECHO. Read and comply with all safety instructions listed in this manual and safety manual.
• Check unit for loose/missing nuts, bolts, and screws. Tighten and/or replace as needed.
• Inspect shield for damage and ensure that the cut-off knife is securely in place. Replace if either is damaged or missing.
• Check that the cutting attachment is firmly attached and in safe operating condition.
• Check that handle and harness (if included) are adjusted for safe, comfortable operation. See Assembly
Section for proper adjustment.
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings.
• ALWAYS stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit.
• DO NOT start or operate unit unless all guards and protective covers are properly assembled to unit.
◆
NEVER reach into any opening while the engine is running. Moving parts may not be visible through openings.
Periodically Check fuel system (fuel lines, vent, grommet, fuel tank, and fuel cap) for leaks especially if the unit is dropped. If damage or leaks are found, do not use unit, otherwise serious personal injury or property damage may occur. Have unit repaired by an authorized servicing dealer before using.
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DESCRIPTION GT-225
DESCRIPTION
Locate the safety decal(s) on your unit. Make sure the decal(s) is legible and that you understand and follow the instructions on it. If a decal cannot be read, a new one can be ordered from your ECHO dealer. Safety label is for example only. Your label my appear slightly different.
1
2
8
9
3
10
7
6
4
5
14
13
11
12
15
10
18
17
16
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1. Spark Plug
2. Top Guard
3. Spark Arrestor Muffler or Spark Arrestor Muffler with Catalyst
4. Fuel Tank
5. Fuel Tank Cap
6. Recoil Starter Handle
7. Choke Lever
8. Air Cleaner
9. Purge Bulb
10. Power Head
11. Throttle Handle - For Right Hand
12. Throttle Trigger
13. Stop Switch
14. Support Handle - For Left Hand
15. Drive Shaft Assembly
16. Debris Shield with Cut-Off Knife
17. Cut-Off Knife
18. Rapid Loader® Head
CONTENTS
CONTENTS
The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, some assembly may be necessary.
After opening the carton, check for damage. Immediately notify your retailer or ECHO Dealer of damaged or missing parts. Use the contents list to check for missing parts.
____1 Power Head / Drive Shaft Assembly
____1 Operator’s Manual
____12 Pieces of pre-cut Nylon Line
____1 Shield Assembly
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ASSEMBLY
ASSEMBLY
Shield Installation
Parts required: Shield assembly.
GT-225
Cut-off knife on debris shield has sharp edges. Avoid contact when installing or removing line head.
Wear Gloves or personal injury may result:
• Cut-off knife is sharp.
• Gear case and surrounding area may be hot.
1. Remove wing nut (A), washer (B), and bolt (C) from shield.
B A
C
2. Snap the shield over the bearing housing.
3. Install bolt (C), washer (B), and wing nut (A).
Nylon Line Installation
1. Shut engine OFF. Lay unit on the ground with head assembly up.
2. Remove old nylon line through center recess of head.
3. Thread new lines through outside holes (A) in housing until ends meet in center of recess.
Note: Insert cutting line ends to center of head recess to insure easy removal of used lines.
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A A
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Support Handle
Note: Label (A) shows minimum spacing for Support Handle location.
Support Handle is pre-installed. Re-positioning and tightening is all that is required.
1. Position Support Handle (A) in comfortable operating position and tighten wing nut (B). The cutting attachment should be 5 cm to 7.5 cm
(2 in. to 3 in.) above the ground and as level as possible.
A
OPERATION
B
OPERATION
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit.
Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is directed away from your face and body.
Operation of this equipment may create sparks that can start fires around dry vegetation. This unit is equipped with a spark arrestor to prevent discharge of hot particles from the engine. Metal cutters can also create sparks if the cutter strikes rocks, metal, or other hard objects. Contact local fire authorities for laws or regulations regarding fire prevention requirements.
Fuel
Use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor performance, or severe engine damage and void the product warranty. Read and follow instructions in the
Storage section of this manual.
Fuel containing more than 25% ethanol is NOT approved for use in ECHO 2-stroke gasoline engines.
Fuel containing more than 25% ethanol may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement. Fuel containing more than 25% ethanol may also cause premature deterioration of fuel lines, gaskets, carburetors and other engine components.
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OPERATION GT-225
Fuel Requirements
Gasoline - Use 89 Octane (mid grade or higher) gasoline known to be good quality. Gasoline may contain up to 25% Ethanol. Gasoline containing methanol (wood alcohol) is NOT approved.
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must be used. ECHO brand 2-Stroke Oil meets these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD certified oil will void the two-stroke engine warranty.
ECHO branded 2-stroke oils may be mixed at 50:1 ratio for application in all ECHO engines sold in the past regardless of ratio specified in those manuals.
Handling Fuel
Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury may result.
• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow flames or sparks near fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize.
• NEVER refuel a unit when the engine is HOT or RUNNING!
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.
• DO NOT overfill fuel tank. Wipe up spills immediately.
• Securely tighten fuel tank cap and close fuel container after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.
• Move at least 3m (10 ft.) from refueling location before starting the engine.
Mixing Instructions
1. Fill an approved fuel container with half of the required amount of gasoline.
2. Add the proper amount of 2-stroke oil to gasoline.
3. Close container and shake to mix oil with gasoline.
4. Add remaining gasoline, close fuel container, and remix.
Spilled fuel is a leading cause of hydrocarbon emissions. Some states may require the use of automatic fuel shut-off containers to reduce fuel spillage.
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After use
• DO NOT store a unit with fuel in its tank. Leaks can occur. Return unused fuel to an approved fuel storage container.
Storage - Fuel storage laws vary by locality. Contact your local government for the laws affecting your area.
As a precaution, store fuel in an approved, airtight container. Store in a well-ventilated, unoccupied building, away from sparks and flames.
Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabilizer is added.
Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use.
Starting Cold Engine
The attachment will operate immediately when the engine starts, and could result in possible serious injury.
Keep movable parts of the attachment away from objects that could become entangled or thrown, and surfaces that could cause loss of control.
1.
Stop Switch
Move stop switch (A) away from the STOP position.
A
2.
Choke
Move choke (B) to COLD START ( ) (closed) position.
3.
Purge Bulb
Pump purge bulb (C) until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional four or five times.
B C
4.
Recoil Starter
Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Firmly grasp throttle handle with left hand and fully depress throttle trigger to wide open position. Rapidly pull recoil starter handle/rope (D) until engine fires (or maximum five] pulls).
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OPERATION GT-225
5.
Choke
After engine fires (or 5 pulls), move choke (B) to the RUN ( ) (open) position. Firmly grasp throttle handle with left hand and fully depress throttle trigger to wide open position. Pull starter handle/rope until engine starts and runs. Release throttle trigger and allow unit to warm up at idle for several minutes.
Note: If engine does not start with choke in “RUN” position after five pulls, repeat instructions 2 - 5.
6.
Throttle Trigger
After engine warm-up, grip throttle handle and support handle. Gradually depress throttle trigger to increase engine RPM to operating speed.
Starting Warm Engine
The starting procedure is the same as Cold Start except DO NOT close the choke, and do not depress throttle trigger to wide open position.
The attachment should not move at idle, otherwise serious personal injury may result.
Note: If attachment moves, readjust carburetor according to “Carburetor Adjustment” instructions in this manual or see your ECHO Dealer.
1.
Stop Switch
Move stop switch (A) away from the STOP position.
A
2.
Purge Bulb
Pump purge bulb (C) until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional four or five times.
C
3.
Recoil Starter
Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Firmly grip throttle handle with left hand. Rapidly pull recoil starter handle/rope (D) until engine fires.
Note: If engine does not start after five pulls, use Cold Start Procedure.
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D
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Stopping Engine
1.
Throttle
Release throttle and allow engine to return to idle before shutting off engine.
2.
Stop Switch
Move stop switch (A) to STOP position.
A
OPERATION
If engine does not stop when stop switch is moved to STOP position, close choke - COLD START position - to stall engine. Have your ECHO dealer repair stop switch before using unit again.
Applications
Do not install blades on GT (Curved Shaft) trimmers.
Operating Techniques - Nylon Line Head
Nylon line heads may be used for trimming, scything, edging, and scalping of grass and light weeds.
Trimming
Feed the spinning line into the material to be cut. Tilt cutting head to the left while cutting to direct debris away from the operator.
Scything
Scything - Swing the cutting head in a level arc, gradually feeding the line into the material being cut. Move forward with each arc to cut a swath. Width of cutting swath depends on arc. Use a larger arc for a wider swath, or a smaller arc for a narrow swath. Keep line head tilted to direct cutting debris forward or away from you.
Edging and Scalping
Both of these are done with the nylon line cutting head tilted at a steep angle. Scalping is removing top growth, leaving the earth bare. Edging is trimming the grass back where it has spread over a pavement or driveway. During both edging and scalping, hold the unit at a steep angle in a position where the debris, and any dislodged dirt and stone, will not come back towards you even if it ricochets off the hard surface.
General
• Debris flows in direction of line head rotation. Change line head position to assure debris flow is directed away from operator.
• Keep cutting line away from wire fences to avoid entanglement.
• Operate trimmer only with cutting head below knee height.
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MAINTENANCE
MAINTENANCE
GT-225
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit.
Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges and hot surfaces.
Your ECHO unit is designed to provide many hours of trouble free service. Regular scheduled maintenance will help your unit achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to
DO-IT-YOURSELF or have the ECHO Dealer do it, each maintenance task has been graded. If the task is not listed, see your ECHO Dealer for repairs.
Skill Levels
Level 1 = Easy to do. Common tools may be required.
Level 2 = Moderate difficulty. Some specialized tools may be required.
Maintenance Intervals
COMPONENT/SYSTEM
Air Filter
Choke Shutter
Fuel Filter
Fuel Cap Gasket
Fuel System
Spark Plug
Cooling System
Muffler Spark Arrestor
Cylinder Exhaust Port
Drive Shaft
Gear Housing
Recoil Starter Rope
MAINTENANCE
PROCEDURE
Inspect/Clean
Inspect/Clean
Inspect/Replace
Inspect/Replace
Inspect/Replace
Inspect/Clean/Replace
Inspect/Clean
Inspect/Clean/Replace
Inspect/Clean/De-carbon
Inspect/Grease
None
Inspect/Clean
REQ’D
SKILL
LEVEL
2
2
1
1
2
2
1
1
1
1
DAILY
OR
BEFORE
USE
I / C *
I / C
I (2) *
I / C
EVERY
REFUEL
I (2) *
3
MONTHS
YEARLY
R *
I *
I *
I / C / R *
I / C / R *
I / C
I (1)
I / R *
R *
1 I / C *
I *
MAINTENANCE PROCEDURE LETTER CODES: I = INSPECT, R = REPLACE, C = CLEAN
IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES:
(1) Apply lithium based grease every 25 hours of use.
(2) Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity.
* Replacement is recommended based on the finding of damage or wear during inspection.
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Air Filter
Level 1.
MAINTENANCE
Parts required: Air and fuel filter kit.
1. Close choke (COLD START [ ] position). This prevents dirt from entering the carburetor throat when the air filter is removed. Brush accumulated dirt from air cleaner area.
2. Remove air filter cover. Brush dirt from inside cover.
3. Replace filter if it is damaged, fuel soaked, very dirty, or the rubber sealing edges are deformed.
• Lightly brush debris from filter.
• Soak heavily soiled filters in water/detergent solution to loosen dirt, then brush lightly.
• Rinse with clean water and allow to dry completely before reuse.
4. Install air filter in air filter case.
5. Install air filter cover.
Fuel Filter
Level 1.
Parts required: Air and fuel filter kit.
Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury may result.
1. Use a clean rag to remove loose dirt from around fuel cap and empty fuel tank.
2. Pull the fuel filter from the fuel tank.
3. Remove the filter from the line and install the new filter.
Note: Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for sale in the United States to be equipped with a special low permeation fuel supply hose between the carburetor and fuel tank. When servicing model year
2012 and later equipment, only fuel supply hoses certified by EPA can be used to replace the original equipment supply hose. Fines up to $37,500 may be enforced for using an un-certified replacement part.
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MAINTENANCE
Spark Plug
Level 2.
Parts required: Tune-Up Kit.
Use only NGK BPM8Y spark plug otherwise severe engine damage may occur.
1. Remove spark plug and check for fouling, worn and rounded center electrode.
2. Clean the plug or replace with a new one. DO NOT sand blast to clean.
Remaining sand will damage engine.
3. Adjust spark plug gap by bending outer electrode.
4. Tighten spark plug to 150-170 kgf•cm (130-150 lbf•in).
Cooling System
Level 2.
GT-225
0.65 mm (0.026 in.)
To maintain proper engine operating temperatures, cooling air must pass freely through the cylinder fin area.
This flow of air carries combustion heat away from the engine.
Overheating and engine seizure can occur when:
• Air intakes are blocked, preventing cooling air from reaching the cylinder.
• Dust and grass build up on the outside of the cylinder. This build up insulates the engine and prevents the heat from leaving.
Removal of cooling passage blockages or cleaning of cooling fins is considered “Normal Maintenance.” Any failure attributed to lack of maintenance is not warranted.
1. Remove spark plug lead.
2. Remove air cleaner cover (A).
3. Remove engine cover (B).
B
A
DO NOT use a metal scraper to remove dirt from the cylinder fins.
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4. Use brush to remove dirt from the cylinder fins.
5. Remove ignition wires from clip for cleaning.
MAINTENANCE
6. Remove grass and leaves from the grid between the recoil starter and fuel tank.
7. Assemble components in reverse order.
Exhaust System
Spark Arrestor Screen
Level 2.
Parts required: Spark arrestor screen, gasket.
1. Remove engine cover (B).
2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder.
3. Remove spark arrestor screen cover (C), gaskets (D), (E), and screen
(F), from muffler body.
4. Clean carbon deposits from muffler components.
Note: When cleaning carbon deposit, be careful not to damage the catalytic element inside muffler.
5. Replace screen if it is cracked, plugged, or has holes burned through.
6. Assemble components in reverse order.
Exhaust Port Cleaning
Level 2.
Parts required: Heat shield.
1. Remove spark plug lead from spark plug, and remove engine cover.
2. Place piston at top dead center. Remove muffler (A) and heat shield (B).
3. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port (C).
E
D
C
F
B
A
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MAINTENANCE GT-225
Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder.
4. Inspect heat shield, and replace if damaged.
5. Install heat shield and muffler.
6. Tighten muffler mounting bolts (or nuts) to 90-110 kgf•cm
(80-95 lbf•in).
7. Install engine cover and attach spark plug lead.
8. Start engine, and warm to operating temperature.
9. Stop engine, and re-tighten mounting bolts (or nuts) to specifications.
C
C
Carburetor Adjustment
Level 2.
Engine Break-In
New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required.
High Altitude Operation
This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 300 m (1,100 ft.) above sea level (ASL). To maintain proper engine operation and emission compliance above 300 m (1,100 ft.) meters ASL the carburetor may need to be adjusted by an authorized ECHO service dealer.
If the engine is adjusted for operation above 300 m (1,100 ft.) ASL, the carburetor must be re-adjusted when operating the engine below 300 m (1,100 ft.) ASL, otherwise severe engine damage may result.
Always operate unit in a clear work area. Keep hands clear of moving parts during adjustment otherwise serious bodily injury may occur.
Before adjustment make sure that:
• Check for correct spark plug (BPM8Y) and gap: 0.026 in. (0.65 mm).
• The air filter element is clean and properly installed.
• The muffler spark arrestor screen and exhaust port are clear of carbon.
• The fuel lines, tank vent, and fuel filter are in good condition and clear of debris.
• The fuel is fresh (> 89 octane: RON+MON/2) and properly mixed at 50:1 with “ISO L-EGD” or “JASO-FD”
2-stroke oil.
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GT-225
1. Turn Hi mixture needle (G) clockwise (CW) until lightly seated. And then turn Hi mixture needle (G) (CCW) 3/4 turns. Turn idle mixture needle (D)
(CW) until lightly seated. And then turn idle mixture needle (D) (CCW)
2 7/8 turns.
2. Turn idle adjust screw (E) until the head touches boss (F). Then turn idle adjust screw (E) (CW) 2 1/2 turns.
3. Start and run engine for three minutes alternating between wide open throttle (WOT) and idle every five seconds. Adjust idle mixture needle
(D) to achieve 2,900 RPM.
4. Adjust Hi mixture needle (G) and achieve 7,500 RPM.
5. When final adjustment is completed, the engine should idle, accelerate smoothly, and attain wide open throttle RPM per above specification.
Lubrication
Level 1.
Parts required: Lithium-based grease.
1. Remove plastic shield.
2. Loosen bearing housing locating screw (A), at the top of the housing, loosen mounting screw (B) and remove gear case from drive housing.
3. Pull the flexible drive shaft (C) from the drive housing, wipe clean and re-coat with 15 ml (0.5 oz.) of grease.
4. Slide the flexible drive shaft back in the drive housing being careful not to get dirt on the flexible drive shaft.
5. Install the bearing housing and shield.
C
A
E
MAINTENANCE
B
F
D
G
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TROUBLESHOOTING
TROUBLESHOOTING
GT-225
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check
Fuel at carburetor
Status
No fuel at carburetor
Cause
Fuel strainer clogged
Fuel line clogged
Carburetor
Remedy
Clean or replace
Clean or replace
See your ECHO dealer
No fuel at cylinder Carburetor
Engine cranks - starts hard/ doesn’t start
Fuel at cylinder
Spark at end of plug wire
Muffler wet with fuel Fuel mixture too rich
No spark
Stop switch OFF
Electrical problem
Interlock switch
Spark gap incorrect
See your ECHO dealer
OPEN choke
Clean/replace air filter
Adjust carburetor
See your ECHO dealer
Turn switch to ON
See your ECHO dealer
See your ECHO dealer
Spark at plug
Air filter
No spark
Air filter dirty
Covered with carbon
Fouled with fuel
Plug defective
Normal wear
Adjust to 0.65 mm
Clean or replace
Clean or replace
Replace plug
Clean or replace
Fuel filter
Fuel vent
Fuel filter dirty
Fuel vent plugged
Contaminants/residue s in fuel
Contaminants/residue s in fuel
Replace
Clean or replace
Engine runs, but dies or does not accelerate properly
Spark Plug Plug dirty/worn Normal wear
Clean and adjust or replace
Adjust
Cooling System
Spark Arrestor
Screen
Cooling system dirty/plugged
Spark arrestor screen plugged
Extended operation in dirty/dusty locations
Normal wear
Clean
Replace
Engine does not crank
N/A N/A
Internal engine problem
See your ECHO dealer
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by grounding spark plug near cylinder plug hole, otherwise serious personal injury may result.
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GT-225
STORAGE
STORAGE
During operation the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result.
Long Term Storage (Over 30 Days)
Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage maintenance which includes the following:
1. Store unit in a dry, dust free place, out of the reach of children.
Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.
2. Place the stop switch in the “OFF” position.
3. Remove accumulation of grease, oil, dirt and debris from exterior of unit.
4. Perform all periodic lubrication and services that are required.
5. Tighten all the screws and nuts.
6. Drain fuel tank completely. Press purge bulb six to seven times to remove remaining fuel from carburetor then drain the tank again. Close choke, start and run the engine until it stops due to lack of fuel.
7. Allow engine to cool. Remove the spark plug lead from the spark plug. Remove the spark plug. Pour 7 cc
(0.25 oz.) of fresh, clean, two-stroke engine oil into the cylinder through the spark plug hole.
8. Pull the recoil starter handle two to three times to distribute the oil inside the engine.
9. Observe the piston location through the spark plug hole. Pull the recoil handle slowly until the piston reaches the top of its travel and leave it there.
10. Install the spark plug. Connect the spark plug lead to the spark plug.
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SPECIFICATIONS
SPECIFICATIONS
For units with the following serial numbers:
U34329001001 - U34329999999
U57429001001 - U57429999999
MODEL
Length (without cutter head)
Width
Height
Weight - dry (without cutter head)
Engine Type
Bore
Stroke
Displacement
Exhaust
Carburetor
Ignition System
Spark Plug
Fuel
Fuel/Oil Ratio
Gasoline
Oil
Fuel Tank Capacity
Starter System
Clutch
Vibration Reduction Systems
Operation Rod
Drive Shaft
Rotating Direction
Cutter Head
Handles
Idle Speed
Clutch Engagement Speed
Wide Open Throttle Speed
GT-225
GT-225
1,371 mm (54.0 in.)
315 mm (12.4 in.)
539 mm (21.2 in.)
4.5 kg (9.92 lb.)
Air cooled, two-stroke, single cylinder gasoline engine
32.2 mm (1.27 in.)
26.0 mm (1.02 in.)
21.2 cc (1.29 in.
3 )
Spark arrester muffler or spark arrester muffler with catalyst
Diaphragm with purge pump
Flywheel magneto, capacitor discharge ignition type
NGK BPM8Y
Gap 0.65 mm (0.026 in.)
Mixed (gasoline and two-stroke oil)
50:1
Use 89 Octane unleaded. Do not use fuel containing methyl alcohol, more than 10% ethyl alcohol or 15% MTBE. Do not use alternative fuels such as E-20 or E-85.
ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345- FD, two-stroke, air-cooled engine oil.
0.44 L (14.9 US fl. oz.)
Automatic rewind starter
Centrifugal type
Without
22.3 mm (0.87 in.)
6.0 mm (0.24 in.) flexible shaft
Clockwise (viewed from top)
Rapid Loader ® head
Front - D-loop with plastic grip
Rear - Plastic grip with throttle trigger and switch
3,000 RPM
3,800 RPM
7,500 RPM
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GT-225
SPECIFICATIONS
For units with the following serial numbers:
U67129001001 - U67129999999
MODEL
Length (without cutter head)
Width
Height
Weight - dry (without cutter head)
Engine Type
Bore
Stroke
Displacement
Exhaust
Carburetor
Ignition System
Spark Plug
Fuel
Fuel/Oil Ratio
Gasoline
Oil
Fuel Tank Capacity
Starter System
Clutch
Vibration Reduction Systems
Operation Rod
Drive Shaft
Rotating Direction
Cutter Head
Handles
Idle Speed
Clutch Engagement Speed
Wide Open Throttle Speed
SPECIFICATIONS
GT-225
1,361 mm (53.6 in.)
318 mm (12.5 in.)
540 mm (21.3 in.)
4.2 kg (9.2 lb.)
Air cooled, two-stroke, single cylinder gasoline engine
32.2 mm (1.27 in.)
26.0 mm (1.02 in.)
21.2 cc (1.29 in.
3 )
Spark arrester muffler or spark arrester muffler with catalyst
Diaphragm with purge pump
Flywheel magneto, capacitor discharge ignition type
NGK BPM8Y
Gap 0.65 mm (0.026 in.)
Mixed (gasoline and two-stroke oil)
50:1
Use 89 Octane unleaded. Do not use fuel containing methyl alcohol, more than 10% ethyl alcohol or 15% MTBE. Do not use alternative fuels such as E-20 or E-85.
ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345- FD, two-stroke, air-cooled engine oil.
0.38 L (12.8 US fl. oz.)
Automatic rewind starter
Centrifugal type
Without
22.3 mm (0.87 in.)
6.0 mm (0.24 in.) flexible shaft
Clockwise (viewed from top)
Rapid Loader ® head
Front - D-loop type with plastic grip
Rear - Plastic grip with throttle trigger and switch
3,000 RPM
3,800 RPM
7,500 RPM
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© 02/22 ECHO Incorporated
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U34329001001 - U34329999999
U57429001001 - U57429999999
U67129001001 - U67129999999
ECHO, INCORPORATED
400 Oakwood Road
Lake Zurich, IL 60047 www.echo-usa.com
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