Instruction Manual
Page 2
... special safety precautions must be recycled. As a result, engineering changes and improvements are made from those described in Germany STIHl FS 300, FS 350, FS 400, FS 450, FS 480 1 Rei. Careless or improper use may cause serious or even fatal injury. Always wear proper eye protection... the Engine ........ 28 Operating Instructions 30 Cleaning the Air Filter 31 Cleaning the Air Filter 31 Motor Management 32 Adjusting the Carburetor 32 Winter Operation 33 Electric Handle Heating 34 Checking the Spark Plug 34 Engine Running Behavior 35 Lubricating the Gearbox 36 Replacing ...
... special safety precautions must be recycled. As a result, engineering changes and improvements are made from those described in Germany STIHl FS 300, FS 350, FS 400, FS 450, FS 480 1 Rei. Careless or improper use may cause serious or even fatal injury. Always wear proper eye protection... the Engine ........ 28 Operating Instructions 30 Cleaning the Air Filter 31 Cleaning the Air Filter 31 Motor Management 32 Adjusting the Carburetor 32 Winter Operation 33 Electric Handle Heating 34 Checking the Spark Plug 34 Engine Running Behavior 35 Lubricating the Gearbox 36 Replacing ...
Instruction Manual
Page 14
...carburetor adjustment screws, after each use with mowing line longer than a few days, always empty the fuel tank. For any part of forest fires is greater in your clearing saw in cutter will automatically adjust the line to the clutch mechanism and nearby parts. 002BA018 LÄ FS 300, FS 350, FS 400, FS 450, FS... "Storing the machine". Using the mowing heads Do not use . An improperly maintained muffler will result. Before storing for your STIHL Owner's Manual should be strictly followed. With a properly mounted guard, the built-in a dry, high or locked location out...
...carburetor adjustment screws, after each use with mowing line longer than a few days, always empty the fuel tank. For any part of forest fires is greater in your clearing saw in cutter will automatically adjust the line to the clutch mechanism and nearby parts. 002BA018 LÄ FS 300, FS 350, FS 400, FS 450, FS... "Storing the machine". Using the mowing heads Do not use . An improperly maintained muffler will result. Before storing for your STIHL Owner's Manual should be strictly followed. With a properly mounted guard, the built-in a dry, high or locked location out...
Instruction Manual
Page 27
...canister on a vehicle. We recommend STIHL 50:1 two-stroke engine oil since it vigorously by hand to ensure proper mixing of storage. Take care when handling gasoline. When filling at authorized disposal locations. 26 FS 300, FS 350, FS 400, FS 450, FS 480 Do not fill fuel canisters ...engines. The chemical composition of 89 (R+M/2). When mixing, pour oil into the mixture. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. If the octane rating of the mid-...
...canister on a vehicle. We recommend STIHL 50:1 two-stroke engine oil since it vigorously by hand to ensure proper mixing of storage. Take care when handling gasoline. When filling at authorized disposal locations. 26 FS 300, FS 350, FS 400, FS 450, FS 480 Do not fill fuel canisters ...engines. The chemical composition of 89 (R+M/2). When mixing, pour oil into the mixture. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. If the octane rating of the mid-...
Instruction Manual
Page 28
...point for a long period, drain and clean the fuel tank. Before storing your right hip. Change the fuel pickup body every year. FS 300, FS 350, FS 400, FS 450, FS 480 27 Always thoroughly shake the mixture in the tank to the machine's perforated strip (3). After fueling, tighten down the filler cap ... build-up in the can be cut to length after making the adjustments. : Attach the spring hook to release slowly.. Run the engine until the carburetor is dry. : Put on the full harness (1). : Adjust length until the spring hook (2) is about a hand's width below your machine for the...
...point for a long period, drain and clean the fuel tank. Before storing your right hip. Change the fuel pickup body every year. FS 300, FS 350, FS 400, FS 450, FS 480 27 Always thoroughly shake the mixture in the tank to the machine's perforated strip (3). After fueling, tighten down the filler cap ... build-up in the can be cut to length after making the adjustments. : Attach the spring hook to release slowly.. Run the engine until the carburetor is dry. : Put on the full harness (1). : Adjust length until the spring hook (2) is about a hand's width below your machine for the...
Instruction Manual
Page 30
...necessary - If the engine does not start If you have a firm footing. : Press the unit firmly against the ground with your left hand. FS 300, FS 350, FS 400, FS 450, FS 480 29 the cutting tool must rest securely on the drive tube. : Pull the starter grip slowly with your right hand until you feel... the starter rope firmly. 10 to idle speed. : Open the throttle slightly. : Warm up engine for operation. it a brisk strong pull. Make sure the carburetor is now ready for brief period. English / USA : Place the unit on the ground: It must not rotate when the engine is idling. Do not...
...necessary - If the engine does not start If you have a firm footing. : Press the unit firmly against the ground with your left hand. FS 300, FS 350, FS 400, FS 450, FS 480 29 the cutting tool must rest securely on the drive tube. : Pull the starter grip slowly with your right hand until you feel... the starter rope firmly. 10 to idle speed. : Open the throttle slightly. : Warm up engine for operation. it a brisk strong pull. Make sure the carburetor is now ready for brief period. English / USA : Place the unit on the ground: It must not rotate when the engine is idling. Do not...
Instruction Manual
Page 31
... plug. : Open the throttle wide. : Crank the engine several times with fuel. This protects enginemounted components (ignition, carburetor) from thermal overload. Tank run at regular intervals and retighten as necessary. 30 FS 300, FS 350, FS 400, FS 450, FS 480 After finishing work Wait for a while at least five times - During operation After a long period of...
... plug. : Open the throttle wide. : Crank the engine several times with fuel. This protects enginemounted components (ignition, carburetor) from thermal overload. Tank run at regular intervals and retighten as necessary. 30 FS 300, FS 350, FS 400, FS 450, FS 480 After finishing work Wait for a while at least five times - During operation After a long period of...
Instruction Manual
Page 33
... is only possible to adjust the high speed screw within fine limits. English / USA Motor Management Adjusting the Carburetor Exhaust emissions are controlled by the design of any major hardware. carburation, ignition, timing and valve or port timing) without the ...Check adjustment of the throttle cable and readjust if necessary - General Information The carburetor comes from the factory with the idle speed screw (LA) so that the cutting tool does not rotate. 32 FS 300, FS 350, FS 400, FS 450, FS 480 This setting provides an optimum fuel-air mixture under most operating conditions. ...
... is only possible to adjust the high speed screw within fine limits. English / USA Motor Management Adjusting the Carburetor Exhaust emissions are controlled by the design of any major hardware. carburation, ignition, timing and valve or port timing) without the ...Check adjustment of the throttle cable and readjust if necessary - General Information The carburetor comes from the factory with the idle speed screw (LA) so that the cutting tool does not rotate. 32 FS 300, FS 350, FS 400, FS 450, FS 480 This setting provides an optimum fuel-air mixture under most operating conditions. ...
Instruction Manual
Page 34
... screw (LA) clockwise until the engine runs and accelerates smoothly. then turn the screw about another half to Using this Manual" 33 FS 300, FS 350, FS 400, FS 450, FS 480 * see "Guide to one full turn in powdery or drifting snow. : Remove the standard air filter (1). : Install the...to the low speed screw (L). Idle setting too lean: : Turn low speed screw (L) counterclockwise until the engine runs smoothly - Fine tuning the carburetor for operation at high altitude A slight correction may be necessary if the engine does not run satisfactorily: : Check standard setting. : Warm up ...
... screw (LA) clockwise until the engine runs and accelerates smoothly. then turn the screw about another half to Using this Manual" 33 FS 300, FS 350, FS 400, FS 450, FS 480 * see "Guide to one full turn in powdery or drifting snow. : Remove the standard air filter (1). : Install the...to the low speed screw (L). Idle setting too lean: : Turn low speed screw (L) counterclockwise until the engine runs smoothly - Fine tuning the carburetor for operation at high altitude A slight correction may be necessary if the engine does not run satisfactorily: : Check standard setting. : Warm up ...
Instruction Manual
Page 36
... see "Specifications". : Use only resistor type spark plugs of fire and burn injury, use only spark plugs authorized by STIHL. Have your STIHL dealer inspect the muffler for carbonization. Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes...FS 300, FS 350, FS 400, FS 450, FS 480 35 STIHL recommends that could ignite combustible fumes and cause a fire. Always press spark plug boot (2) snugly onto spark plug terminal (1) of spark plug: : Too much oil in the muffler. English / USA Engine Running Behavior If engine is clean and the carburetor...
... see "Specifications". : Use only resistor type spark plugs of fire and burn injury, use only spark plugs authorized by STIHL. Have your STIHL dealer inspect the muffler for carbonization. Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes...FS 300, FS 350, FS 400, FS 450, FS 480 35 STIHL recommends that could ignite combustible fumes and cause a fire. Always press spark plug boot (2) snugly onto spark plug terminal (1) of spark plug: : Too much oil in the muffler. English / USA Engine Running Behavior If engine is clean and the carburetor...
Instruction Manual
Page 39
.... Apply tool through the openings (see arrows). English / USA Storing the Machine 8 : Place spring with local environmental requirements. : Run engine until carburetor is correctly seated. : Use a suitable tool to the cylinder fins and air filter. : Store the machine in a dry, high or locked location...Install the rope rotor as described in "Replacing the Starter Rope". : Tension the rewind spring. : Fit the fan housing. 271BA038 KN 271BA039 KN FS 300, 350 9 9 : Take out the screws (9). : Remove the spring housing and parts of old spring. : Lubricate the new spring spring in ...
.... Apply tool through the openings (see arrows). English / USA Storing the Machine 8 : Place spring with local environmental requirements. : Run engine until carburetor is correctly seated. : Use a suitable tool to the cylinder fins and air filter. : Store the machine in a dry, high or locked location...Install the rope rotor as described in "Replacing the Starter Rope". : Tension the rewind spring. : Fit the fan housing. 271BA038 KN 271BA039 KN FS 300, 350 9 9 : Take out the screws (9). : Remove the spring housing and parts of old spring. : Lubricate the new spring spring in ...
Instruction Manual
Page 41
... / USA Maintenance Chart Please note that this work or daily after finishing work be done by a STIHL servicing dealer * not in muffler All accessible screws and nuts (not adjusting screws) Anti-vibration element Visual...STIHL recommends that the following maintenance intervals apply for normal operating conditions. Complete machine Control handle Air filter Pick up body in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Spark arresting screen* in all versions, market-specific X X X X X X X X X X X X X X X X X X X X 40 FS 300, FS 350, FS 400, FS 450, FS...
... / USA Maintenance Chart Please note that this work or daily after finishing work be done by a STIHL servicing dealer * not in muffler All accessible screws and nuts (not adjusting screws) Anti-vibration element Visual...STIHL recommends that the following maintenance intervals apply for normal operating conditions. Complete machine Control handle Air filter Pick up body in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Spark arresting screen* in all versions, market-specific X X X X X X X X X X X X X X X X X X X X 40 FS 300, FS 350, FS 400, FS 450, FS...
Instruction Manual
Page 43
English / USA Parts and Controls 2 4 3 5 6 1 7 8 9 10 11 1 Handlebar 2 Handle heating switch (Special accessory) 3 Throttle trigger 4 Slide control 5 Throttle trigger interlock 6 Clamp screws 7 Carrying strip 8 Fuel pump 9 Choke knob 10 Filter cover 11 Fuel tank 256BA077 KN 12 15 13 14 16 17 19 18 42 256BA078 KN 256BA079 KN 12 Spark plug boot 13 Decompression valve 14 Muffler 15 Starter grip 16 Carburetor adjusting screws 17 Fuel filler cap 18 Guard plate 19 Cutting tool 20 Deflector 20 FS 300, FS 350, FS 400, FS 450, FS 480
English / USA Parts and Controls 2 4 3 5 6 1 7 8 9 10 11 1 Handlebar 2 Handle heating switch (Special accessory) 3 Throttle trigger 4 Slide control 5 Throttle trigger interlock 6 Clamp screws 7 Carrying strip 8 Fuel pump 9 Choke knob 10 Filter cover 11 Fuel tank 256BA077 KN 12 15 13 14 16 17 19 18 42 256BA078 KN 256BA079 KN 12 Spark plug boot 13 Decompression valve 14 Muffler 15 Starter grip 16 Carburetor adjusting screws 17 Fuel filler cap 18 Guard plate 19 Cutting tool 20 Deflector 20 FS 300, FS 350, FS 400, FS 450, FS 480
Instruction Manual
Page 44
... during cutting work. 2. Carburetor Adjusting Screws For tuning the carburetor. 17. Throttle Trigger Interlock Must be depressed before the throttle trigger can be adjusted as described in selected position. 7. Carrying Strip The device to connect the clearing saw to stop . Choke Knob Eases engine starting . 14. FS 300, FS 350, FS 400, FS 450, FS 480 43 For...
... during cutting work. 2. Carburetor Adjusting Screws For tuning the carburetor. 17. Throttle Trigger Interlock Must be depressed before the throttle trigger can be adjusted as described in selected position. 7. Carrying Strip The device to connect the clearing saw to stop . Choke Knob Eases engine starting . 14. FS 300, FS 350, FS 400, FS 450, FS 480 43 For...
Instruction Manual
Page 45
... US pt (0.67l) Fuel miture see chapter "Fuel" Weight without cutting tool FS 300, 350, 400, 450, 480: 69.5 in (1 765 mm) FS 400 K, 450 K, 480 K: 64.4 in (1 635 mm) FS 400 L, 450 L, 480 L: 71.9 in (1 825 mm) Carburetor All position diaphragm carburetor with electronic speed governor Spark plug (suppressed) Bosch WSR 6 F, NGK BPMR...= 50 hours Engine STIHL single cylinder two-stroke engine Displacement FS 300: 1.88 cu.in (30.8 cm3) FS 350: 2.45 cu.in (40.2 cm3) FS 400: 2.45 cu.in (40.2 cm3) FS 450: 2.70 cu.in (44.3 cm3) FS 480: 2.96 cu.in (48.7 cm3 Bore FS 300: 1.38 in (35 mm) FS 350: 1.57 in...
... US pt (0.67l) Fuel miture see chapter "Fuel" Weight without cutting tool FS 300, 350, 400, 450, 480: 69.5 in (1 765 mm) FS 400 K, 450 K, 480 K: 64.4 in (1 635 mm) FS 400 L, 450 L, 480 L: 71.9 in (1 825 mm) Carburetor All position diaphragm carburetor with electronic speed governor Spark plug (suppressed) Bosch WSR 6 F, NGK BPMR...= 50 hours Engine STIHL single cylinder two-stroke engine Displacement FS 300: 1.88 cu.in (30.8 cm3) FS 350: 2.45 cu.in (40.2 cm3) FS 400: 2.45 cu.in (40.2 cm3) FS 450: 2.70 cu.in (44.3 cm3) FS 480: 2.96 cu.in (48.7 cm3 Bore FS 300: 1.38 in (35 mm) FS 350: 1.57 in...
Instruction Manual
Page 47
...if your small off -road engine for your small off -road equipment engine or a part has failed due to a STIHL service center as soon as the carburetor and the ignition system. Manufacturer's Warranty Coverage: In the U.S., 1997 and later model year small off-road equipment engines ... You are responsible for a period of the required maintenance listed in materials and workmanship which cause it to fail to STIHL. 46 FS 300, FS 350, FS 400, FS 450, FS 480 new 1997 and later model year small off -road equipment engine will be free from defects in performance and durability...
...if your small off -road engine for your small off -road equipment engine or a part has failed due to a STIHL service center as soon as the carburetor and the ignition system. Manufacturer's Warranty Coverage: In the U.S., 1997 and later model year small off-road equipment engines ... You are responsible for a period of the required maintenance listed in materials and workmanship which cause it to fail to STIHL. 46 FS 300, FS 350, FS 400, FS 450, FS 480 new 1997 and later model year small off -road equipment engine will be free from defects in performance and durability...
Instruction Manual
Page 48
... 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 Air filter Spark plug Magneto or electronic ignition system (...STIHL Incorporated is defective, the part will be charged for diagnostic labor which is defective. Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated, and : replacement of parts and other engine components caused by STIHL Incorporated at an authorized STIHL servicing dealer. FS 300, FS 350, FS 400, FS 450, FS...
... 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 Air filter Spark plug Magneto or electronic ignition system (...STIHL Incorporated is defective, the part will be charged for diagnostic labor which is defective. Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated, and : replacement of parts and other engine components caused by STIHL Incorporated at an authorized STIHL servicing dealer. FS 300, FS 350, FS 400, FS 450, FS...