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carburetor

 

adjustment

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 1,100 feet above sea level 

(ASL) (96.0 kPa). To maintain proper engine operation and emission 

compliance above 1,100 feet ASL the carburetor may need to be ad-

justed by an authorized ECHO service dealer.

IMPORTANT 

If the engine is adjusted for operation 

above

 1,100 feet ASL, the 

carburetor must be re-adjusted when operating the engine 

below

 

1,100 feet ASL, otherwise severe engine damage may result.

Exhaust Port Cleaning

Level 2.

Tools required:

    Torx T27 L-Wrench, Wood or plastic scraper

Parts Required: 

  As needed: Heat Shield

1.    Remove spark plug lead from spark plug, and remove engine cover 

(2 screws). 

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.

IMPORTANT 

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 80-95 in•lbf    

(90-110 kgf•cm).

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 specifica

-

tions.

A

B

Summary of Contents for GT_225 - 11-09

Page 1: ...al MODEL GT 225 WARNING Read rules for safe operation and instructions carefully ECHO provides an Opera tor s Manual and a Safety Manual Both must be read and understood for proper and safe operation...

Page 2: ...rator s Manual 2 The Safety Manual 2 Safety 3 Manual Safety Symbols and Important Information 3 International Symbols 3 Personal Conditions and Safety Equipment 4 Equipment 6 Emission Control 7 Descri...

Page 3: ...rt 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 Safety manual safety symbols and important informati...

Page 4: ...s hands and wrists Maintain good blood circulation by performing vigor ous arm exercises during frequent work breaks and also by not smoking Limit the hours of operation Try to fill each day with jobs...

Page 5: ...titive move ment Do exercises 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 o...

Page 6: ...O INC 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...

Page 7: ...ecals are legible and that you understand and follow the instruc tions on them If a decal cannot be read a new one can be ordered from your ECHO dealer See PARTS ORDERING instructions for specific inf...

Page 8: ...dle when released During acceleration press trigger gradu ally for best operating technique 10 TOP GUARD Provides arm rest during operation and protects arm from hot engine 11 Spark arrestor muffler o...

Page 9: ...arge washer Small washer 3 8 24 Locknut 2 Pre cut Nylon Line 8 in x 080 in Plastic Shield Assembly WARNINg Cut off knife on debris shield has sharp edges Avoid contact when installing or removing line...

Page 10: ...ert 5 mm 3 16 in diameter locking tool A 3 Place large washer B then line head C on threaded shaft fol lowed by small metal washer D and locknut E 4 Install 3 8 24 locknut using 14 5 mm 9 16 in wrench...

Page 11: ...NING 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 hav...

Page 12: ...ut off containers to reduce fuel spillage 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...

Page 13: ...e bulb C until fuel is visible and flows freely in the clear fuel tank return line Pump bulb an additional 4 or 5 times 4 Recoil Starter Lay the unit on a flat area and keep movable attachment parts c...

Page 14: ...sible and flows freely in the clear fuel tank return line Pump bulb an additional 4 or 5 times 3 Recoil Starter Lay the unit on a flat area and keep movable attachment parts clear of all obstacles Rap...

Page 15: ...llow unit to cool before performing service Wear gloves to protect hands from sharp edges and hot surfaces COMPONENT SYSTEM MAINTENANCE PROCEDURE SKILL LEVEL REQ D DAILY OR BEFORE USE EVERY REFUEL 3 M...

Page 16: ...ertain it Fits tightly in the air filter cavity Is installed with the original side out 5 Install air filter cover NOTE Carburetor adjustment may be needed after air filter cleaning re placement fuel...

Page 17: ...T27 Torx L Wrench Cleaning Brush 25 50 mm 1 2 in Parts Required None IMPORTANT To maintain proper engine operating temperatures cooling air must pass freely through the cylinder fin area This flow of...

Page 18: ...7 Torx L Wrench Soft Metal Brush Parts Required Screen Gasket 1 Remove spark plug lead from spark plug and remove engine cover 2 screws 2 Place piston at Top Dead Center TDC to prevent carbon dirt fro...

Page 19: ...adjusted when operating the engine below 1 100 feet ASL otherwise severe engine damage may result Exhaust Port Cleaning Level 2 Tools required Torx T27 L Wrench Wood or plastic scraper Parts Required...

Page 20: ...le screw A clockwise to increase idle speed counter clockwise to decrease idle speed A WARNINg When carburetor adjustment is completed the cutting attachment should not turn at idle otherwise serious...

Page 21: ...u T r e l a e d o h c E r u o y e e S r e l a e d o h c E r u o y e e S g u l p t a k r a p S k r a p s o N t c e r r o c n i p a g k r a p S n o b r a c h t i w d e r e v o C l e u f h t i w d e l u...

Page 22: ...k 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...

Page 23: ...wer Blend X ISO L EGD ISO CD 13738 and J A S O M345 FC FD two stroke air cooled engine oil Gasoline Use 89 Octane unleaded Do not use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MT...

Page 24: ...e engine powered products the electronic ignition module flexible drive cables SRM solid drive shafts and TC tines are warranted for the life of the product on parts only Cutting attachments such as b...

Page 25: ...Incorrect storage procedures stale fuel including failure to provide or perform required maintenance services as prescribed in the operator s manual Preventative maintenance as outlined in the operat...

Page 26: ...ned built and equipped to conform with applicable EPA and C A R B emissions standards and that your equipment SORE is free from defects in material and workmanship that would cause it to fail to confo...

Page 27: ...Grass Trimmer Operator s Manual 27 notes...

Page 28: ...presenting your unit for Warranty service repairs proof of purchase is required echo consumer product support If you require assistance or have questions concerning the applica tion operation or maint...

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