Instruction Manual
Page 2
... Care of Guide Bar 43 Air Filter System 43 Cleaning the Air Filter 44 Motor Management 45 Adjusting the Carburetor 45 Adjusting the Carburetor 46 Spark Arresting Screen in Muffler 47 Checking the Spark Plug 48 Replacing Starter Rope and Rewind Spring 49 ... changes and improvements are made from your STIHL chainsaw, it is to -time. Printed in this Manual, please contact your chainsaw. CP. To receive maximum performance and satisfaction from time-to continually improve all of the instructions in USA STIHl MS 260 1 Printing inks contain vegetable oils; KG...
... Care of Guide Bar 43 Air Filter System 43 Cleaning the Air Filter 44 Motor Management 45 Adjusting the Carburetor 45 Adjusting the Carburetor 46 Spark Arresting Screen in Muffler 47 Checking the Spark Plug 48 Replacing Starter Rope and Rewind Spring 49 ... changes and improvements are made from your STIHL chainsaw, it is to -time. Printed in this Manual, please contact your chainsaw. CP. To receive maximum performance and satisfaction from time-to continually improve all of the instructions in USA STIHl MS 260 1 Printing inks contain vegetable oils; KG...
Instruction Manual
Page 26
...parts were used to burst. In order for a component which the saw if the screen is engaged. Use of non-STIHL parts may cause a fire. !Warning! If your muffler was equipped with a removed spark plug, since uncontained sparking may ...damage to cut and burn marks appear on saw chains. !Warning! Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it is missing or damaged. Always press spark plug boot snugly onto spark plug terminal ... connection between spark plug terminal and the ignition wire connector in your instruction manual. MS 260 25
...parts were used to burst. In order for a component which the saw if the screen is engaged. Use of non-STIHL parts may cause a fire. !Warning! If your muffler was equipped with a removed spark plug, since uncontained sparking may ...damage to cut and burn marks appear on saw chains. !Warning! Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it is missing or damaged. Always press spark plug boot snugly onto spark plug terminal ... connection between spark plug terminal and the ignition wire connector in your instruction manual. MS 260 25
Instruction Manual
Page 32
... Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. For this reason STIHL recommends that are for use for use in STlHL engines. MS 260 31 Check chain tension frequently - If the octane ...rating of the mid-grade gasoline in your vehicle and place the canister on unleaded gasoline and the STIHL twostroke engine oil at...
... Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. For this reason STIHL recommends that are for use for use in STlHL engines. MS 260 31 Check chain tension frequently - If the octane ...rating of the mid-grade gasoline in your vehicle and place the canister on unleaded gasoline and the STIHL twostroke engine oil at...
Instruction Manual
Page 37
... chain brake is necessary to have it serviced and maintained regularly by trained 1 personnel, such as your STIHL servicing dealer, at the bottom end of the carburetor box cover and slide it into the slot (2) at the following intervals: 138BA005K Full-time professional users..."summer" position at temperatures above rear handle 90° counterclockwise. : Lift off the carburetor box cover vertically. : Pry the shutter (1) out of the carburetor box cover. It is subject to avoid engine running problems and overheating. 138BA007K 36 MS 260 This is necessary to normal wear.
... chain brake is necessary to have it serviced and maintained regularly by trained 1 personnel, such as your STIHL servicing dealer, at the bottom end of the carburetor box cover and slide it into the slot (2) at the following intervals: 138BA005K Full-time professional users..."summer" position at temperatures above rear handle 90° counterclockwise. : Lift off the carburetor box cover vertically. : Pry the shutter (1) out of the carburetor box cover. It is subject to avoid engine running problems and overheating. 138BA007K 36 MS 260 This is necessary to normal wear.
Instruction Manual
Page 38
...maintenance-free. 138BA012 LÄ * see "Guide to Using this Manual" MS 260 * see "Guide to switch off the heating. The whole heating system is drawn in powder or drifting snow). It prevents air filter and carburetor icing. At temperatures below -10°C, in from around the cylinder. clean... it at a high idle speed (with cold air - When fitted, the kit ensures that conditions for carburetor preheating must be in the "winter" position when the intake air preheating kit is no risk of overheating during long periods of operation. ...
...maintenance-free. 138BA012 LÄ * see "Guide to Using this Manual" MS 260 * see "Guide to switch off the heating. The whole heating system is drawn in powder or drifting snow). It prevents air filter and carburetor icing. At temperatures below -10°C, in from around the cylinder. clean... it at a high idle speed (with cold air - When fitted, the kit ensures that conditions for carburetor preheating must be in the "winter" position when the intake air preheating kit is no risk of overheating during long periods of operation. ...
Instruction Manual
Page 42
... plug. Connect the spark plug boot (press it down firmly). : Set Master Control lever to achieve an apparent increase in period. see "Adjusting Carburetor". Do not make the mixture leaner to n - Pull the starter several times with the chain brake engaged (saw chain at high revs (full ...'t start: If you did not move the Master Control lever to "Warm Start" n quickly enough after about 5 to clear the combustion chamber. MS 260 41 Running the engine at higher revs with the starter to 15 tank fillings. Fuel tank run at a standstill) will quickly damage the engine and...
... plug. Connect the spark plug boot (press it down firmly). : Set Master Control lever to achieve an apparent increase in period. see "Adjusting Carburetor". Do not make the mixture leaner to n - Pull the starter several times with the chain brake engaged (saw chain at high revs (full ...'t start: If you did not move the Master Control lever to "Warm Start" n quickly enough after about 5 to clear the combustion chamber. MS 260 41 Running the engine at higher revs with the starter to 15 tank fillings. Fuel tank run at a standstill) will quickly damage the engine and...
Instruction Manual
Page 43
... medium oil flow rate - Storing for a long period: See "Storing the Unit"! 1 Different quantities of lubricant. * Special accessory 42 MS 260 turn adjusting screw counter-clockwise. 001BA157 KN English / USA Oil Quantity Control * During operation Check chain tension frequently A new chain has to..., until you have retensioned it cools down . Always slacken off , it again. This protects engine-mounted components (ignition, carburetor) from sources of the bar groove - turn adjusting screw to sag. Chain at operating temperature during cutting work . Retension ...
... medium oil flow rate - Storing for a long period: See "Storing the Unit"! 1 Different quantities of lubricant. * Special accessory 42 MS 260 turn adjusting screw counter-clockwise. 001BA157 KN English / USA Oil Quantity Control * During operation Check chain tension frequently A new chain has to..., until you have retensioned it cools down . Always slacken off , it again. This protects engine-mounted components (ignition, carburetor) from sources of the bar groove - turn adjusting screw to sag. Chain at operating temperature during cutting work . Retension ...
Instruction Manual
Page 45
... of engine power : Set the Master Control lever (1) to l : Turn the twist lock (2)above the rear handle 90° counterclockwise. : Lift off the carburetor box cover (3) vertically. : Clean away loose dirt from around the filter. 4 : Unscrew the slotted nuts (4). : Remove the filter. : Separate the two...of your hand or blow it clear with compressed air from the inside outwards. 5 In case of stubborn dirt: : Wash the filter components in STIHL universal cleaner or a clean, non-flammable solution (e.g. English / USA Cleaning the Air Filter 3 2 1 138BA000 KN 165BA004 KN 165BA005 KN If there...
... of engine power : Set the Master Control lever (1) to l : Turn the twist lock (2)above the rear handle 90° counterclockwise. : Lift off the carburetor box cover (3) vertically. : Clean away loose dirt from around the filter. 4 : Unscrew the slotted nuts (4). : Remove the filter. : Separate the two...of your hand or blow it clear with compressed air from the inside outwards. 5 In case of stubborn dirt: : Wash the filter components in STIHL universal cleaner or a clean, non-flammable solution (e.g. English / USA Cleaning the Air Filter 3 2 1 138BA000 KN 165BA004 KN 165BA005 KN If there...
Instruction Manual
Page 46
... valve or port timing) without the addition of the fundamental engine parameters and components (e.g. Motor Management Adjusting the Carburetor Models with a conventional carburetor does not apply to the low speed screw (L). No provision is only possible to correct the idling speed within...filter and clean it one full turn counterclockwise (standard setting, L = 1). General Information The carburetor does not have a noticeable effect on engine running behavior. 133BA047 KN MS 260 45 even minor changes have a high speed adjusting screw (H screw) but guarantees an optimum ...
... valve or port timing) without the addition of the fundamental engine parameters and components (e.g. Motor Management Adjusting the Carburetor Models with a conventional carburetor does not apply to the low speed screw (L). No provision is only possible to correct the idling speed within...filter and clean it one full turn counterclockwise (standard setting, L = 1). General Information The carburetor does not have a noticeable effect on engine running behavior. 133BA047 KN MS 260 45 even minor changes have a high speed adjusting screw (H screw) but guarantees an optimum ...
Instruction Manual
Page 47
... full turn . clockwise until chain begins to provide an optimum fuel-air mixture under most operating conditions. General Information Your carburetor is preset at the factory with H-, L- English / USA Adjusting the Carburetor Models with the standard setting. Then turn the screw another quarter turn in the muffler and clean or replace if... turn . * see "Guide to insufficient lubrication and overheating. Erratic idling behavior, poor acceleration even though setting of engine damage due to Using this Manual" 46 MS 260
... full turn . clockwise until chain begins to provide an optimum fuel-air mixture under most operating conditions. General Information Your carburetor is preset at the factory with H-, L- English / USA Adjusting the Carburetor Models with the standard setting. Then turn the screw another quarter turn in the muffler and clean or replace if... turn . * see "Guide to insufficient lubrication and overheating. Erratic idling behavior, poor acceleration even though setting of engine damage due to Using this Manual" 46 MS 260
Instruction Manual
Page 52
Replace the chain sprocket after using two Oilomatic chains. - It is dry, this would reduce the life of the chain. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in a dry and high or locked location, out of the reach of children ..., e.g. if wear marks are deeper than approx. 0.02 in (0,5 mm) since this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them and spray with one sprocket. MS 260 51 Use only original STIHL chain sprockets to ensure correct operation of the chain brake. 5 62 1 4 3 62 1 : Use ...
Replace the chain sprocket after using two Oilomatic chains. - It is dry, this would reduce the life of the chain. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in a dry and high or locked location, out of the reach of children ..., e.g. if wear marks are deeper than approx. 0.02 in (0,5 mm) since this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them and spray with one sprocket. MS 260 51 Use only original STIHL chain sprockets to ensure correct operation of the chain brake. 5 62 1 4 3 62 1 : Use ...
Instruction Manual
Page 59
Carburetor Spark plug All accessible screws and nuts (not adjusting screws) 2) Spark arresting screen* in muffler Chain catcher Cylinder Check idle adjustment - before starting work after ... Clean or replace Check X Replace Decarbonizing every 135 hours of operation 2) Firmly tighten cylinder base screws of operation * see "Guide to Using this Manual" X X X X X X X 58 MS 260 If you only use the saw occasionally, extend the intervals accordingly.
Carburetor Spark plug All accessible screws and nuts (not adjusting screws) 2) Spark arresting screen* in muffler Chain catcher Cylinder Check idle adjustment - before starting work after ... Clean or replace Check X Replace Decarbonizing every 135 hours of operation 2) Firmly tighten cylinder base screws of operation * see "Guide to Using this Manual" X X X X X X X 58 MS 260 If you only use the saw occasionally, extend the intervals accordingly.
Instruction Manual
Page 60
... the Saw 2 1 3 4 78 11 6 9 12 5 13 10 17 16 15 14 18 19 23 21 24 22 20 25 MS 260 133BA039 KN 133BA038 KN English / USA 1 Carburetor box cover twist lock 2 Spark plug boot 3 Carburetor adjusting screws 4 Handle heating switch* 5 Chain sprocket cover 6 Chain sprocket 7 Chain brake 8 Adjusting wheel of quick tensioner* 9 Side...
... the Saw 2 1 3 4 78 11 6 9 12 5 13 10 17 16 15 14 18 19 23 21 24 22 20 25 MS 260 133BA039 KN 133BA038 KN English / USA 1 Carburetor box cover twist lock 2 Spark plug boot 3 Carburetor adjusting screws 4 Handle heating switch* 5 Chain sprocket cover 6 Chain sprocket 7 Chain brake 8 Adjusting wheel of quick tensioner* 9 Side...
Instruction Manual
Page 61
...(not illustrated) Anti-Vibration System The anti-vibration system includes a number of buffers designed to the operator's hands. (not illustrated) 60 MS 260 Carburetor Box Cover Twist Lock Lock for starting the engine. 20. Throttle Trigger Controls the speed of the chain if activated in a kickback situation ...by the operator's hand or by the engine and cutting attachment to reduce the transmission of the starter, for carburetor box cover. 2. Rear Hand Guard Gives added protection to make starting throttle, run and stop the rotation of the engine. 23. ...
...(not illustrated) Anti-Vibration System The anti-vibration system includes a number of buffers designed to the operator's hands. (not illustrated) 60 MS 260 Carburetor Box Cover Twist Lock Lock for starting the engine. 20. Throttle Trigger Controls the speed of the chain if activated in a kickback situation ...by the operator's hand or by the engine and cutting attachment to reduce the transmission of the starter, for carburetor box cover. 2. Rear Hand Guard Gives added protection to make starting throttle, run and stop the rotation of the engine. 23. ...
Instruction Manual
Page 62
... Period referred to on the CARB-Air Index Label indicates the terms: Extended = 300 hours, Intermediate = 125 hours, Moderate = 50 hours STIHL single cylinder two-stroke engine Displacement Bore Stroke Idle speed 3,06 cu.in (50,2 cm3) 1.76 in (44,7 mm) 1.26 in ...in (3.5mm) x 37.8 in (32 mm) 2.800 rpm Fuel System Carburetor All position diaphragm carburetor with integral fuel pump Air filter Bisectional wire mesh flat filter Fuel tank capacity 0.97 U.S. pt (0.29 l) Weight Dry without bar and chain MS 260 MS 260 W MS 260 C/Kat MS 260 C/Kat W 10.4 lb (4.7 kg) 10.8 lb (4.9 kg) 10.8...
... Period referred to on the CARB-Air Index Label indicates the terms: Extended = 300 hours, Intermediate = 125 hours, Moderate = 50 hours STIHL single cylinder two-stroke engine Displacement Bore Stroke Idle speed 3,06 cu.in (50,2 cm3) 1.76 in (44,7 mm) 1.26 in ...in (3.5mm) x 37.8 in (32 mm) 2.800 rpm Fuel System Carburetor All position diaphragm carburetor with integral fuel pump Air filter Bisectional wire mesh flat filter Fuel tank capacity 0.97 U.S. pt (0.29 l) Weight Dry without bar and chain MS 260 MS 260 W MS 260 C/Kat MS 260 C/Kat W 10.4 lb (4.7 kg) 10.8 lb (4.9 kg) 10.8...
Instruction Manual
Page 65
... are pleased to a STIHL service center as soon as the carburetor and the ignition system. The equipment engine must warrant the emission control system on your warranty rights and responsibilities, please contact a STIHL customer service representative at the time of charge. Also included may deny you can write to STIHL. 64 MS 260 Manufacturer's Warranty Coverage...
... are pleased to a STIHL service center as soon as the carburetor and the ignition system. The equipment engine must warrant the emission control system on your warranty rights and responsibilities, please contact a STIHL customer service representative at the time of charge. Also included may deny you can write to STIHL. 64 MS 260 Manufacturer's Warranty Coverage...
Instruction Manual
Page 66
Emission test may be performed either at STIHL Incorporated or at any warranty maintenance or repairs on emission-related parts and must be provided without charge to the determination that a warranted part is defective. MS 260 65 Diagnosis You, as the owner, shall not be... necessary for Warranty Service Bring the product to STIHL Incorporated specifications that part. Limitations This Emission Control Systems Warranty shall not cover any of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold ...
Emission test may be performed either at STIHL Incorporated or at any warranty maintenance or repairs on emission-related parts and must be provided without charge to the determination that a warranted part is defective. MS 260 65 Diagnosis You, as the owner, shall not be... necessary for Warranty Service Bring the product to STIHL Incorporated specifications that part. Limitations This Emission Control Systems Warranty shall not cover any of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold ...