Cub Cadet ST23, ST26, ST35 User Manual

5 (1)

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Trimmers

Operator's Manual

TABLE OF CONTENTS

Table of Contents ..............................................

1

Foreword ...........................................................

1

Safety Precautions ............................................

2

Metal Blade Use ................................................

6

Decal Information ..............................................

7

Specifications ....................................................

8

Parts Description ...............................................

9

Trimmer Assembly ..........................................

10

Fueling Instructions .........................................

12

Operation ........................................................

14

Maintenance ...................................................

17

Maintenance Chart .....................................

17

Troubleshooting Guide ....................................

24

Warranty ...........................................

Back Cover

FOREWORD

This Operator’s Manual contains safety precautions and operating procedures for the Cub Cadet Commercial line of trimmers. You must read and understand this Operator’s Manual and especially the Safety Precautions for proper and safe operation.

Cub Cadet Commercial's philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time to time. If the operating characteristics or the appearance of your trimmer differ from those described in this Operator’s Manual, please contact your Cub Cadet Commercial dealer for information and assistance. Contact your Cub Cadet Commercial dealer if you do not understand any of the instructions in this manual.

Although hazard control and accident prevention are partially dependent upon the design and configuration of the trimmers, these factors are also dependent upon the awareness, concern, prudence and proper training of the personnel involved in the operation, transport, maintenance and storage of the trimmers.

WARNING

Indicates a strong possibility of severe personal injury or death if instructions are not followed.

CAUTION

Indicates a possibility of personal injury or equipment damage if instructions are not followed.

IMPORTANT:

This 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.

WARNING

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

1

SAFETY PRECAUTIONS

GENERAL:

1.It is important that you read, fully understand and observe the following safety precautions and warnings. Read the Operator's Manual and the safety instructions periodically.

2.Do not lend or rent out your trimmer without the Operator’s Manual. Be sure that anyone using your trimmer understands the information contained in this Operator’s Manual.

3.Careless or improper use of this trimmer may cause serious or even fatal injury.

4.The use of the trimmer can be hazardous. If the rotating cutting line or a blade comes in contact with your body, it will cut you. When it comes in contact with solid foreign objects such as rocks or bits of metal, it may fling them directly or by ricochet in the direction of bystanders or the operator.

5.Cub Cadet Commercial does not recommend the use of rigid blades when cutting in stony areas. Thrown objects or damaged blades may result in serious or fatal injury to the operator or bystanders.

PHYSICAL CONDITION: You must be in good physical condition and mental health and not under the influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or judgment. Do not operate the trimmer when you are fatigued.

1.Be alert - if you get tired while operating your trimmer, take a break. Fatigue may result in loss of control. Working with the trimmer can be strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating the trimmer.

2.Prolonged use of the trimmer (or other machines) exposing the operator to vibrations may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome. These conditions reduce the hand's ability to feel and regulate temperature, produce numbness and burning sensations and may cause nerve and circulation damage and tissue necrosis. Antivibration systems do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. Therefore, continual and

regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.

PROTECTIVE CLOTHING: Trimmer operation can cause serious injury to eyes, ears and body. The deflector provided with your trimmer may not protect the operator from all foreign objects (gravel, glass, wire, etc.) thrown by the rotating cutting line or blade. Thrown objects may also ricochet and strike the operator.

1.Clothing must be sturdy and snug-fitting, but allow complete freedom of movement. Avoid loose-fitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, unconfined long hair or anything that could become caught on branches, brush or moving parts of the unit. Wear long pants made of heavy material to protect your legs. DO NOT WEAR SHORTS.

2.To reduce the risk of injury to your eyes, never operate the trimmer unless wearing goggles or properly fitted safety glasses with adequate top and side protection complying with ANSI Z 87.1.

3.To reduce the risk of injury to your face Cub Cadet Commercial recommends that you also wear a face shield or face screen over your goggles or safety glasses.

4.Trimmer noise may damage your hearing. Wear sound barriers (ear plugs or ear mufflers) protect your hearing. Continual and regular user should have their hearing checked regularly.

5.Protect your hands with gloves when handling the trimmer. Heavy-duty, nonslip gloves improve your grip and protect your hands.

6.Good footing is most important in trimmer work. Wear sturdy boots with nonslip soles. Steel-toed safety boots are recommended.

7.Wear an approved safety hard hat to reduce the risk of injury to your head.

PROTECTING OTHERS:

1.Minors should never be allowed to use the trimmer.

2

SAFETY PRECAUTIONS

2.Spectators, children, fellow workers and animals must be warned to stay back 50 feet (15m) while the trimmer is in use. Stop the engine and cutting head immediately if you are approached.

3.People working in the area near you should wear the same protective equipment as the operator.

PREPARATION FOR THE USE OF THE TRIMMER:

1.Never modify the trimmer in any way. Only attachments supplied by Cub Cadet Commercial or expressly approved by Cub Cadet Commercial for use with the specific Cub Cadet Commercial trimmer models are authorized. Although certain unauthorized attachments are usable with the Cub Cadet Commercial trimmer, their use may, in fact, be extremely dangerous.

2.When transporting your trimmer in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to the trimmer.

3.Always use the shoulder harness when using rigid blades.

4.Adjust the shoulder harness and hand grips to suit your size before starting work.

5.Always check your trimmer for proper condition and operation before starting, particularly the throttle trigger, throttle trigger interlock, stop switch, cutting head or blade, deflector and harness.

6.The throttle trigger must move freely and always spring back to the idle position. The cutting head must be properly tightened and in safe operating condition. Inspect for loose parts (nuts, screws, etc.).

HANDLING FUEL: The Cub Cadet Commercial trimmer uses an oil-gasoline mixture for fuel.

1.Gasoline is an extremely flammable fuel. If spilled and ignited by a spark or other ignition source, it can cause fire, serious burn injury and property damage. Use extreme caution when handling gasoline or an oil-gasoline fuel mixture.

2.Do not smoke or bring any fire or flame near the

fuel.

3.Fuel your trimmer outdoors or in a well-ventilated area.

4.Select bare ground for fueling and move at least 10 feet (3 m) from the fueling spot before starting the engine.

5.Gasoline vapor pressure may build up inside the gas tank of a two cycle engine depending on the fuel used, the weather conditions, and the venting system of the tank. In order to reduce the risk of personal injury from escaping gas vapor and fumes, remove the fuel filler cap on your trimmer carefully so as to allow any pressure buildup in the tank to release slowly.

6.Never remove the fuel filler cap while the engine is running.

7.Unit vibrations can cause an improperly tightened fuel cap to loosen or come off permitting fuel to spill. In order to reduce the risk of fuel spillage and fire, tighten the fuel cap by hand with as much force as possible.

8.Wipe off any spilled fuel before starting your trimmer.

9.Check for fuel leakage while refueling and during operation. If fuel or oil leakage is found, do not start or run the engine until the leak is fixed and spilled fuel has been wiped away.

10.If fuel spills on your clothing, change your clothing immediately.

CARBON MONOXIDE HAZARDS:

1.If you operate the trimmer in an area that is confined, or even partially enclosed, the air you breathe could contain a dangerous amount of exhaust gas. To keep exhaust gas from building up, provide adequate ventilation.

2.The exhaust gas contains carbon monoxide, a poisonous, colorless and odorless gas. Breathing the exhaust gas can cause loss of consciousness and may lead to death.

3

SAFETY PRECAUTIONS

STARTING: Your trimmer is a one-person machine.

1.Start and operate your trimmer without assistance. When starting, place the trimmer on firm ground or a solid surface in an open area. Maintain good balance and secure footing.

2.To reduce the risk of injury from loss of control, be absolutely sure that the cutting head or blade is clear of you and all other obstructions and objects, including the ground when starting, because when the engine starts, the engine speed will be fast enough for the clutch to engage and turn the cutting head or blade.

3.When you pull the starter grip, do not wrap the starter rope around your hand. Do not allow the grip to snap back, but guide the starter rope to rewind properly. Failure to follow this procedure may result in injury to your hand or fingers and may damage the starter mechanism.

OPERATION:

1.Work carefully.

2.To reduce the risk of injury from thrown objects or blade contact, never operate the trimmer without a properly mounted deflector.

3.Operate the trimmer under good visibility and daylight conditions only.

4.Always hold the trimmer firmly with both hands. Wrap your fingers tightly around the handles, keeping the handles cradled between your thumb and forefinger. Keep your hands in this position, to have your trimmer under control at all times.

5.Make sure your trimmer handles and grips are in good condition and free of moisture, pitch, oil or grease.

6.Never attempt to operate the trimmer with one hand. You might lose control of the trimmer resulting in serious or fatal injury.

7.To reduce the risk of bodily injury resulting from loss of control and contact with the cutting head, always attach and wear the shoulder harness on those trimmers equipped with a straight shaft and loop handle.

8.Before trimming, inspect the area for stones, glass, pieces of metal, trash or other solid objects. The cutting line could throw objects of this kind.

9.This trimmer is to be used normally at ground level with the cutting head or blade parallel to the ground. Using the trimmer above ground level or with the cutting head or blade perpendicular to the ground may increase the risk of injury, since the cutting line or blade is more fully exposed and the trimmer may be more difficult to control. Never use your trimmer as a hedge trimmer.

10.When using rigid blades, avoid cutting close to fences, sides of buildings, tree trunks, stones or other such objects that could cause the trimmer to kick out or could cause damage to the blade. Cub Cadet Commercial recommends use of the nylon line heads or Polycut head for such jobs. In addition, be alert to an increased possibility of ricochets in such situations.

11.Do not use the starting throttle lock when you are trimming as you do not have control of the engine speed. For the proper use of the throttle lock, see “Starting” in the Operation Section.

12.If the cutting tool or deflector becomes clogged or stuck, always turn off the engine and make sure the cutting tool has stopped, before cleaning. Grass,weeds, etc. should be cleaned off the cutting tool at regular intervals.

13.During cutting, check the tightness and the condition of the cutting tool at regular intervals. If the behavior of the tool changes, stop the engine immediately, and check the bolt securing the tool for tightness and the cutting tool for cracks and damage.

14.Replace cracked, bent, warped, damaged or dull cutting blades immediately. Such tools may shatter at high speed and cause serious or fatal injury.

15.A loose blade may cause the blade to crack, vibrate, break or come off the trimmer, which may result in serious or fatal injury. Make sure that the blade is properly tightened. Use the wrench supplied or one of sufficient length to obtain the proper torque. If the blade loosens after being properly tightened, stop work

4

SAFETY PRECAUTIONS

immediately. The retaining bolt may be worn or damaged and should be replaced. Never use unauthorized parts to secure the blade. If the blade continues to loosen, see your Cub Cadet Commercial dealer. Never use a trimmer with a loose blade.

16.To reduce the risk of personal injury from loss of control, do not use an incorrect idle adjustment. At correct idle speed, the head and line or blade should not move. For instructions on adjusting the idle speed, see “Carburetor Adjustment” in the Maintenance Section.

17.Never touch a rotating cutting tool with your hand or any part of your body. It continues to rotate for a short period after the throttle trigger is released.

18.Always turn off the engine and make sure the cutting line has stopped before putting the trimmer down.

5

METAL BLADE USE

WARNING

Specified deflector shield, bicycle handle and shoulder harness MUST be used on brushcutter with metal blades. Operating the brushcutter without specified deflector, shield, bicycle handle, and shoulder harness can cause serious personal injury.

WARNING

If blade is mounted improperly, it may come loose during operation and cause serious or fatal injury.

REQUIRED PARTS………………Parts List on 3,4 page

 

 

A. Blades; 23,26cc; 1.IM-195833140

2.IM-195833170

3.IM-195833230

 

 

35cc; 1.IM-195833150

2.IM-195833070

3.IM-195833160

 

 

B. Deflector; 4.IM-720463430

 

 

Blades

Metal Shield

C. Handle; 5.590541

 

1

2

(Deflector)

D. Shoulder Harness; 6.IM-720853461

 

 

 

4

 

 

 

 

C

 

 

 

 

 

 

3

 

 

 

 

Bicycle Handle

Shoulder Harness

 

 

 

5

6

 

 

 

 

D

B

 

 

 

 

A

 

 

 

 

 

 

 

WARNING

Always wear hearing, eye, foot and leg protection when operating trimmer.

WARNING

Blade coasts after throttle release, maintain control and stop blade by contact with cut materials before the unit is set down.

WARNING

Read Operator’s manual. Follow ALL warning and safety instructions. Failure to do so can result in serious personal injury to the operator and / or bystanders.

6

DECAL INFORMATION

WARNING

LOCATE THE SAFETY DECALS ON YOUR TRIMMER. MAKE SURE THE DECALS ARE LEGIBLE AND THAT YOU UNDERSTAND AND FOLLOW THE INSTRUCTIONS ON THEM.

DEFLECTOR DECAL:

SHAFT DECALS:

This trimmer can be can be dangerous and cause serious injury if improperly used. To reduce injury risk to operator, helpers and bystanders, read and understand the Operator's Manual.

Blindness can occur from objects that are thrown or ricochet even with a shield in place. Operators, helpers and by-standers must wear ANSI Z87.1 approved eye protection.

Always wear hearing protection when operating a trimmer.

Prevent accidental contact with the trimmer and any cutting attachment. Maintain a 50 ft. (15m) radius, DANGER ZONE surrounding the operator. ONLY the operator, dressed in proper protective clothing should be in the

DANGER ZONE.

SHAFT DECALS: (Continued)

Beware of KICKOUT (blade thrust) when using blades. Special precautions are necessary for blade operation, see your Operator's

KICKOUT

Manual. Install ONLY Cub Cadet Commercial approved blades on ST model trimmers equipped with proper blade shield, loop handle, shoulder harness, blade collar, nut and cotter pin.

The blade/cutting attachment does not stop immediately after releasing the throttle. Keep hands and feet clear of the blade/cutting attachment unless the engine is shut off and the cutting attachment is not moving.

INSPECT BLADES BEFORE USE.

DO NOT USE DAMAGED, CRACKED, BENT, DULL, OR IMPROPERLY SHARPENED BLADES.

Do not remove shields or decals, modify the unit or install unapproved attachments or parts. Approved attachments and replacement Operator's Manuals are available from your Cub Cadet Commercial dealer or by writing:

CUB CADET CORPORATION

P.O.Box 368023, Cleveland,OH 44136-9723

7

SPECIFICATIONS

Model

 

ST23

 

ST26

 

ST35

 

 

Loop Handle

 

Loop Handle

 

Loop Handle

 

 

 

 

 

 

 

Length

(mm)

1783

 

1783

 

1818

 

(in.)

70.1

 

70.1

 

71.5

 

 

 

 

 

 

 

Width

(mm)

260

 

260

 

260

 

(in.)

10.2

 

10.2

 

10.2

 

 

 

 

 

 

 

Height

(mm)

250

 

264

 

277

 

(in.)

9.84

 

10.4

 

10.9

 

 

 

 

 

 

 

Weight

(kg)

4.8

 

5.1

 

6.7

 

(lb.)

10.5

 

11.2

 

14.7

 

 

 

 

 

Type of Engine

 

Air-cooled, two-stroke, single cylinder gasoline engine.

 

 

 

 

 

 

 

Bore

(mm)

33

 

33

 

37

 

(in.)

1.3

 

1.3

 

1.46

 

 

 

 

 

 

 

Stroke

(mm)

26

 

30

 

32

 

(in.)

1.02

 

1.18

 

1.26

 

 

 

 

 

 

 

Displacement

(cc)

22.2

 

25.6

 

34.4

 

(cu. in.)

1.35

 

1.56

 

2.1

 

 

 

 

 

 

 

Engine Power

(ps/rpm)

1.02/8000

 

1.22/7500

 

1.63/7500

 

 

 

 

 

Carburetor

 

All position diaphragm carburetor with priming pump.

 

 

 

 

 

 

 

Exhaust System

 

 

 

Spark arrester muffler.

 

 

 

 

 

 

 

 

Ignition System

 

 

Flywheel magneto. (Electronic)

 

 

 

 

 

 

 

 

Spark Plug

 

 

 

NGK BPMR7A

 

 

 

 

 

 

 

 

Fuel

 

 

Mixed (gasoline and oil).

 

 

 

 

 

 

Fuel/Oil Ratio

 

50:1 Using Cub Cadet Commercial 2-Stroke Engine Oil.

 

 

25-30:1 Using Other Brands of TC Oil.

 

 

 

 

 

 

Fuel Tank Capacity (lit)

0.45

 

0.55

 

0.65

 

(U.S. fl. oz.)

15.2

 

18.6

 

22.0

 

 

 

 

 

 

 

8

PARTS DESCRIPTION

WARNING

This unit can be dangerous and cause serious injury if improperly used. To reduce injury risk to operator, helpers and bystanders, read and understand the Operator and Safety Manual.

Blindness can occur from objedts that are thrown or ricochet even with shield in place. Operators, helpers and bystanders must wear eye protection, ANSI Z87.1 approved.

Always wear hearing protection when operating unit.

Use caution when refueling hot engine. Never refuel while engine is on.

• Prevent accidental contact with unit and any cuting

 

• Blade/Cutting attachment does not stop immediately

attachment. Maintain a 50 ft. (15 m) radius, DAN-

 

after releasing throttle. Keep hands and feet clear of

GER ZONE surrounding the operator. ONLY the

 

blade/cutting attachment unless engine is shut off

operator, dressed in proper protective clothing

 

and cutting attachment is not moving.

should be in the DANGER ZONE.

 

INSPECT BLADES BEFORE USE.

• Beware of KICKOUT blade thrust when using

 

DO NOT USE DAMAGED, CRACKED, BENT, DULL

blades. Special precautions are necessary for

 

OR IMPROPERLY SHARPENED BLADES.

blade operation, see your Operator and Safety

 

• Do not remove shields modify the unit or install

Manual. ONLY install manufacturer approved

 

attachments or parts not approved by manufacturer.

blades on Brushcutter models equipped with prop-

kickout

Approved attachment information and replacement

er blade shields, harness, blade collar, nut and cot-

 

Operator and Safety Manual are available from man-

ter pin.

 

ufacturer.

7

2 12

5

10

3

4

6

REF NO.

DESCRIPTION

 

 

1

Gear Case

2

Grip

3

Throttle Wire

4

Throttle Lever

5

Hanger

6

Shoulder Band (Standard on ST35)

 

 

11

1

9

8

REF NO. DESCRIPTION

7Engine

8Head/Blade

9Deflector 10 Stop Switch 11 Drive Tube

12 Loop Handle

9

Cub Cadet ST23, ST26, ST35 User Manual

TRIMMER ASSEMBLY

The trimmer is partly disassembled for ease of shipment and must be assembled before it can be used for the first time.

WARNING

Because of the increased risk of accidents the powerhead must not be started while it is detached from the trimmer.

A. MOUNTING THE LOOP HANDLE:

1

1. Mount the loop handle (Ref. 1) .

1

5

2

3

4

2.Position the clamp (Ref. 2) in the loop handle (Ref. 1).

3.Place both parts on the drive tube (Ref. 5).

4.Position the clamp (Ref. 3).

5.Insert the screws (Ref. 4) hand tight.

6.Line up the loop handle and tighten the screws firmly.

B. MOUNTING THE DEFLECTOR:

1.To mount the deflector, lay the trimmer on its back with the cutting tool head facing upward.

2

1

(A)

(B)

2.Place the deflector (Ref. 1) inside pointing upward, on the bracket already fitted to the drive shaft. Fit the plate (Ref. 2) on the inside of the deflector and line it up. Insert the four screws and tighten them down.

3.When using the nylon line trimmer, attach the deflector (B) with a chopper blade on your brushcutter in order to keep the line at the proper length. Failure to follow this procedure may damage your brushcutter.

WARNING

To reduce the risk of injury from thrown objects or blade contact, never operate the trimmer without a properly mounted deflector.

C. MOUNTING THE CUTTING TOOL:

1.Install the nylon line trimmer head or the cutting blade as illustrated.

10

TRIMMER ASSEMBLY

WARNING

If the nylon line trimmer head or the blade is fitted improperly, it may come loose during operation and cause serious or fatal injury.

Installing the Nylon Line Trimmer Head

4

2

3

1

WARNING

Protect your hands with gloves if mounting a rigid blade.

2.Align the hole in the holder (Ref. 3) with the hole in the gear case (Ref. 2) and install the locking tool (Ref. 1).

3.Fit the nylon line trimmer head (Ref. 4) onto the shaft (turning it counterclockwise) until it is tight.

4.Remove the locking tool.

D.USING THE SHOULDER HARNESS (Standard on ST35):

1

1. Put on the shoulder strap (Ref. 1).

WARNING

Always use the shoulder harness when using rigid blades.

Installing steel blade

7

6

5

4

3

2

1

1.Install the selected cutting blade as illustrated.

2.Align the hole in the holder (Ref.2) with the hole in the gearcase and install the locking tool (Ref.1).

3.Install cover (Ref.3).

4.Install cutting blade (Ref.4).

5.Install holder (Ref.5).

11

FUELING INSTRUCTIONS

6.Install the bolt cover (Ref.6).

7.Install the left hand nut (Ref.7) tighten to 18.5 (N m).

WARNING

Reread the Safety Precautions relating to “Handling Fuel” on Page 3.

The Cub Cadet Commercial trimmer uses an oilgasoline mixture as fuel. The engine is certified to operate on unleaded gasoline.

Use regular name-brand unleaded gasoline with a minimum octane number of 89. If the octane number of the regular grade gasoline in your area is lower use premium unleaded fuel. Fuel with a lower octane number may result in preignition (causing “pinging”) which is accompanied by an increase in engine temperature. This, in turn, increases the risk of piston seizure and damage to the engine.

The chemical composition of the fuel is also important. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines etc.), but magnesium castings as well. This could cause running problems or even damage the engine. For this reason it is essential that you use only namebrand fuels!

IMPORTANT:

Do not use any gasoline containing alcohol. Serious engine or fuel system damage will occur.

Use only quality two-stroke, air-cooled engine oil with the classification TC. The mix ratio is 25-30:1.

We recommend Cub Cadet Commercial brand 2- Stroke Engine Oil since it is specially tested for use in all Cub Cadet Commercial two-stroke engines. The mix ratio is 50:1

IMPORTANT:

Do not use BIA or TCW (two-stroke water cooled) mix oils!

Directions for Mixing: (See Chart for Amounts)

1.Put one-half of the gasoline in a safety approved container.

2.Add the proper amount of two-stroke oil and mix thoroughly.

3.Add the remainder of the gasoline and mix thoroughly.

Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapor.

The gasoline container should be kept tightly closed in order to prevent any moisture getting into the mixture.

Only mix sufficient fuel for a few days work, not to exceed 30 days of storage. Store in a safety approved fuel container only.

Fuel Mixes:

Gasoline

Oil (50:1)

Oil (25-30:1)

 

(Cub Cadet

(Other Name-

 

2-Stroke

Brand TC Oils)

 

Engine Oil)

 

 

 

 

Liters

Liters

Liters

(U.S. gal.)

(U.S. fl. oz.)

(U.S. fl. oz.)

 

 

 

1

0.02

0.04-0.033

(1)

(2.6)

(5.12-4.27)

 

 

 

10

0.2

0.4-0.33

(2.5)

(6.4)

(12.8-10.66)

 

 

 

20

0.4

0.8-0.67

(5)

(12.8)

(25.6-21.33)

 

 

 

Dispose of empty two-stroke oil containers at authorized disposal locations only.

CAUTION

The engine used on this trimmer is of a 2-cycle design. The internal moving parts of the engine, f.e., crankshaft bearings, piston pin bearings and piston to cylinder wall contact surfaces, require oil mixed with the gasoline for lubrication. Failure to add oil to the gasoline or failure to mix oil with the gasoline at the appropriate ratio will cause major engine damage which will void your warranty. For your fuel premix, only use Cub Cadet Commercial brand 50:1 2-cycle oil or a quality oil designed for 2-cycle air cooled engines.

12

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