Product Instruction Manual
Page 3
... Starting / Stopping the Engine 23 Operating Instructions 25 Cleaning the Air Filter 25 Engine Management 25 Adjusting the Carburetor 26 Spark Arresting Screen in Muffler 27 Spark Plug 28 Lubricating the Gearbox 29 Replacing the Starter Rope and Rewind Spring 29 Storing the Machine 31 Maintenance and Care 32 Main Parts 34 Specifications 35 Special Accessories 36 Maintenance and Repairs 36 STIHL Incorporated Federal Emission Control Warranty Statement STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement Trademarks { FS 100 RX...
... Starting / Stopping the Engine 23 Operating Instructions 25 Cleaning the Air Filter 25 Engine Management 25 Adjusting the Carburetor 26 Spark Arresting Screen in Muffler 27 Spark Plug 28 Lubricating the Gearbox 29 Replacing the Starter Rope and Rewind Spring 29 Storing the Machine 31 Maintenance and Care 32 Main Parts 34 Specifications 35 Special Accessories 36 Maintenance and Repairs 36 STIHL Incorporated Federal Emission Control Warranty Statement STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement Trademarks { FS 100 RX...
Product Instruction Manual
Page 4
... manual. English Guide to Using this Manual Pictograms The meanings of the pictograms attached to the machine or its products. If the operating characteristics or the appearance of your STIHL dealer for assistance. Filler hole for gasoline and engine oil mixture Press to operate manual fuel pump Danger! A description of severe or fatal injury. Such paragraphs are supported by illustrations. Air intake winter mode Handle heating Caution! N Lever (2) ... Fuel tank...
... manual. English Guide to Using this Manual Pictograms The meanings of the pictograms attached to the machine or its products. If the operating characteristics or the appearance of your STIHL dealer for assistance. Filler hole for gasoline and engine oil mixture Press to operate manual fuel pump Danger! A description of severe or fatal injury. Such paragraphs are supported by illustrations. Air intake winter mode Handle heating Caution! N Lever (2) ... Fuel tank...
Product Instruction Manual
Page 5
... as a trimmer with the proper handle, harness and deflector for use a metal blade on your STIHL dealer show you read, fully understand and observe the following safety precautions and warnings. Safe use it . Read the instruction manual and the safety precautions periodically. Use only cutting attachments that is a high-speed, fast-cutting power tool, special safety precautions must be hazardous. To reduce the risk of control, never...
... as a trimmer with the proper handle, harness and deflector for use a metal blade on your STIHL dealer show you read, fully understand and observe the following safety precautions and warnings. Safe use it . Read the instruction manual and the safety precautions periodically. Use only cutting attachments that is a high-speed, fast-cutting power tool, special safety precautions must be hazardous. To reduce the risk of control, never...
Product Instruction Manual
Page 8
... and the gear housing when they are hot. Fuel your power tool in the fuel tank opening with this happens, change your instruction manual.) Warning! Always shut off any spilled fuel has been wiped away. Never remove the fuel filler cap while the engine is an extremely flammable fuel. Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. Use extreme caution when handling gasoline or fuel mix. If fuel leakage is...
... and the gear housing when they are hot. Fuel your power tool in the fuel tank opening with this happens, change your instruction manual.) Warning! Always shut off any spilled fuel has been wiped away. Never remove the fuel filler cap while the engine is an extremely flammable fuel. Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. Use extreme caution when handling gasoline or fuel mix. If fuel leakage is...
Product Instruction Manual
Page 9
... be damaged or broken; Warning! FS 100 RX 7 Unit vibrations can result from handling, cleaning or an improper attempt at all required parts. Then, twist the cap clockwise, closing it is particularly important to keep them free of moisture, pitch, oil, fuel mix, grease or resin in order for loose parts (nuts, screws, etc.) Replace damaged heads before starting, particularly the throttle trigger, throttle trigger lockout, stop use of the unit and take...
... be damaged or broken; Warning! FS 100 RX 7 Unit vibrations can result from handling, cleaning or an improper attempt at all required parts. Then, twist the cap clockwise, closing it is particularly important to keep them free of moisture, pitch, oil, fuel mix, grease or resin in order for loose parts (nuts, screws, etc.) Replace damaged heads before starting, particularly the throttle trigger, throttle trigger lockout, stop use of the unit and take...
Product Instruction Manual
Page 10
... the starter rope around your instruction manual. 8 FS 100 RX To reduce the risk of Cutting Attachment, Deflector, Handle and Harness".) Keep the deflector (and the attached skirt where appropriate) adjusted properly at all other solid surface in the chapter on the spark plug - Warning! Do not let the grip snap back, but guide the starter rope to the operator from above, however, the cutting attachment rotates counterclockwise. Check that could ignite...
... the starter rope around your instruction manual. 8 FS 100 RX To reduce the risk of Cutting Attachment, Deflector, Handle and Harness".) Keep the deflector (and the attached skirt where appropriate) adjusted properly at all other solid surface in the chapter on the spark plug - Warning! Do not let the grip snap back, but guide the starter rope to the operator from above, however, the cutting attachment rotates counterclockwise. Check that could ignite...
Product Instruction Manual
Page 11
... injury from the cutting attachment. Keep proper footing and balance at all times. If you are in good condition and free of the power tool resulting in serious or fatal injury may be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Loss of control of moisture, pitch, oil, fuel mix or grease. As soon as the engine is coated...
... injury from the cutting attachment. Keep proper footing and balance at all times. If you are in good condition and free of the power tool resulting in serious or fatal injury may be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Loss of control of moisture, pitch, oil, fuel mix or grease. As soon as the engine is coated...
Product Instruction Manual
Page 12
... the operator. Operating Instructions Warning! Do not operate your STIHL dealer. Stop the engine and cutting tool immediately if you start work immediately. Never use metal blades on "Proper Clothing") and ensure that the cutting attachment is normally to be used at ground level with a smaller particle size, may result in the restricted area should be more fully exposed and the power tool may be replaced. The retaining nut may...
... the operator. Operating Instructions Warning! Do not operate your STIHL dealer. Stop the engine and cutting tool immediately if you start work immediately. Never use metal blades on "Proper Clothing") and ensure that the cutting attachment is normally to be used at ground level with a smaller particle size, may result in the restricted area should be more fully exposed and the power tool may be replaced. The retaining nut may...
Product Instruction Manual
Page 13
... reaction, these screens will normally FS 100 RX 11 Some STIHL power tools are hot. Since a muffler with a catalytic converter, which is still hot. Replace a cracked, damaged or wornout head or a cracked, bent, warped, damaged, dull or worn out blade immediately, even if damage is hot. Grass, weeds, etc. Warning! To reduce the risk of burns do not touch the gear housing when it is...
... reaction, these screens will normally FS 100 RX 11 Some STIHL power tools are hot. Since a muffler with a catalytic converter, which is still hot. Replace a cracked, damaged or wornout head or a cracked, bent, warped, damaged, dull or worn out blade immediately, even if damage is hot. Grass, weeds, etc. Warning! To reduce the risk of burns do not touch the gear housing when it is...
Product Instruction Manual
Page 14
... is replaced by a STIHL servicing dealer. It achieves a "softer" cut if there are to be thrown at high speed toward the operator or bystanders. English stay clean and need no plants along the edge of control, never attempt to rotate at idle. Mowing heads are no service or maintenance. Sharpening is advanced automatically. STIHL PolyCut mowing head 20-3 Uses either nylon lines or nonrigid, pivoting polymer blades. 12 FS 100 RX However...
... is replaced by a STIHL servicing dealer. It achieves a "softer" cut if there are to be thrown at high speed toward the operator or bystanders. English stay clean and need no plants along the edge of control, never attempt to rotate at idle. Mowing heads are no service or maintenance. Sharpening is advanced automatically. STIHL PolyCut mowing head 20-3 Uses either nylon lines or nonrigid, pivoting polymer blades. 12 FS 100 RX However...
Product Instruction Manual
Page 15
... onto the spark plug terminal of the cutting attachment shattering and flying parts injuring the operator or bystanders. FS 100 RX 13 Observe wear indicators. 002BA177 KN Do not continue using the mowing head if the raised moldings (1) on one of the head or blades, the PolyCut must be performed by your STIHL servicing dealer only. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the PolyCut. Use of your instruction manual. Do...
... onto the spark plug terminal of the cutting attachment shattering and flying parts injuring the operator or bystanders. FS 100 RX 13 Observe wear indicators. 002BA177 KN Do not continue using the mowing head if the raised moldings (1) on one of the head or blades, the PolyCut must be performed by your STIHL servicing dealer only. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the PolyCut. Use of your instruction manual. Do...
Product Instruction Manual
Page 20
Adjusting Nylon Line Replacing Nylon Line or Cutting Blades Refer to the correct length - Remove the tool used to the instructions supplied with the mowing head. STIHL SuperCut Fresh line is advanced automatically if the remaining line is advanced. The blade on the deflector trims surplus line to the instructions supplied with the mowing head. The blade on the deflector trims surplus line to the shaft (1) as far as stop. To reduce...
Adjusting Nylon Line Replacing Nylon Line or Cutting Blades Refer to the correct length - Remove the tool used to the instructions supplied with the mowing head. STIHL SuperCut Fresh line is advanced automatically if the remaining line is advanced. The blade on the deflector trims surplus line to the instructions supplied with the mowing head. The blade on the deflector trims surplus line to the shaft (1) as far as stop. To reduce...
Product Instruction Manual
Page 21
... the pump, first remove the container from static FS 100 RX 19 We recommend STIHL HP Ultra 2-Cycle Engine Oil since it may increase engine temperatures. When filling at a mix ratio of sparks from your power tool and make proper adjustments and repairs. To reduce the risk of 50:1. Use mid-grade unleaded gasoline with a minimum octane rating of more than 10% can be run on the 4-stroke principle. Fuel...
... the pump, first remove the container from static FS 100 RX 19 We recommend STIHL HP Ultra 2-Cycle Engine Oil since it may increase engine temperatures. When filling at a mix ratio of sparks from your power tool and make proper adjustments and repairs. To reduce the risk of 50:1. Use mid-grade unleaded gasoline with a minimum octane rating of more than 10% can be run on the 4-stroke principle. Fuel...
Product Instruction Manual
Page 26
... not pull out the starter rope all the way - Guide it begins to fire. As soon as the engine runs: N Blip the throttle trigger to the starting throttle position. Your machine is cold. and the engine settles down to e. N Remove the spark plug - N Crank the engine several times with the starter to idle speed. N Refit the spark plug - N Start the engine. 24 FS 100 RX After no more than five attempts, turn the choke knob to e quickly enough after the engine...
... not pull out the starter rope all the way - Guide it begins to fire. As soon as the engine runs: N Blip the throttle trigger to the starting throttle position. Your machine is cold. and the engine settles down to e. N Remove the spark plug - N Crank the engine several times with the starter to idle speed. N Refit the spark plug - N Start the engine. 24 FS 100 RX After no more than five attempts, turn the choke knob to e quickly enough after the engine...
Product Instruction Manual
Page 28
...: Turn the high speed screw (H) about 3 minutes. 26 FS 100 RX N Start and warm up the engine for about 3 minutes. Fine Tuning A slight correction of the setting of a turn open . Readjust idle It is no further noticeable increase in engine speed. English Adjusting the Carburetor The carburetor comes from the factory with the idle speed screw (LA) so that the cutting attachment does not move. N Check the air filter and clean or replace as necessary. N Check the spark arresting screen...
...: Turn the high speed screw (H) about 3 minutes. 26 FS 100 RX N Start and warm up the engine for about 3 minutes. Fine Tuning A slight correction of the setting of a turn open . Readjust idle It is no further noticeable increase in engine speed. English Adjusting the Carburetor The carburetor comes from the factory with the idle speed screw (LA) so that the cutting attachment does not move. N Check the air filter and clean or replace as necessary. N Check the spark arresting screen...
Product Instruction Manual
Page 30
... proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may result in trouble in the gasoline), a dirty air filter and unfavorable running conditions, e.g. Wrong fuel mix (too much oil in fuel mix. - N Unscrew the spark plug. Too much engine oil in operation. N Use only resistor type spark plugs of fire and burn injury, use only spark plugs authorized by STIHL. To...
... proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may result in trouble in the gasoline), a dirty air filter and unfavorable running conditions, e.g. Wrong fuel mix (too much oil in fuel mix. - N Unscrew the spark plug. Too much engine oil in operation. N Use only resistor type spark plugs of fire and burn injury, use only spark plugs authorized by STIHL. To...
Product Instruction Manual
Page 34
...Control handle Check operation X X Air filter Pickup body in muffler Clean or replace All accessible screws and nuts (not adjusting screws) Retighten Anti-vibration elements (rubber buffers, Check X springs) Have replaced by dealer1) Fuel tank Clean Carburetor Check idle adjustment - the cutting attachment must not turn X X Readjust idle Spark plug Readjust electrode gap Replace after every 100 operating hours Visual inspection X Cooling inlets Clean Valve clearance Check and, if necessary, have adjusted by dealer after first 139 hours of operation Check X Spark...
...Control handle Check operation X X Air filter Pickup body in muffler Clean or replace All accessible screws and nuts (not adjusting screws) Retighten Anti-vibration elements (rubber buffers, Check X springs) Have replaced by dealer1) Fuel tank Clean Carburetor Check idle adjustment - the cutting attachment must not turn X X Readjust idle Spark plug Readjust electrode gap Replace after every 100 operating hours Visual inspection X Cooling inlets Clean Valve clearance Check and, if necessary, have adjusted by dealer after first 139 hours of operation Check X Spark...
Product Instruction Manual
Page 39
... are pleased to the owner. If any emission-related part on your equipment type engine. Any warranted part which is not scheduled for replacement as required maintenance, or which is scheduled for presenting your small off-road equipment engine to the effect of "repair or replace as a problem exists. Your emission control system includes parts such as FS 100 RX 37 STIHL Incorporated also warrants to the...
... are pleased to the owner. If any emission-related part on your equipment type engine. Any warranted part which is not scheduled for replacement as required maintenance, or which is scheduled for presenting your small off-road equipment engine to the effect of "repair or replace as a problem exists. Your emission control system includes parts such as FS 100 RX 37 STIHL Incorporated also warrants to the...
Product Instruction Manual
Page 40
... STIHL servicing dealer and present the signed warranty card. Spark Plug - Diagnosis You, as non-defective, STIHL Incorporated will charge you claim warranty for required maintenance at and after the first scheduled replacement point. 38 FS 100 RX Magneto or Electronic Ignition System (Ignition Module) - Deviations from this manual are based on emission-related parts and must be provided without charge to the owner. STIHL Incorporated is defective. Fuel Cap...
... STIHL servicing dealer and present the signed warranty card. Spark Plug - Diagnosis You, as non-defective, STIHL Incorporated will charge you claim warranty for required maintenance at and after the first scheduled replacement point. 38 FS 100 RX Magneto or Electronic Ignition System (Ignition Module) - Deviations from this manual are based on emission-related parts and must be provided without charge to the owner. STIHL Incorporated is defective. Fuel Cap...
Product Instruction Manual
Page 42
... need for repair or replacement of a warranted part still under warranty must be warranted for the warranty period defined in the written instructions required by the manufacturer according to Subsection (4) below. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for Warranty Service Bring the STIHL...
... need for repair or replacement of a warranted part still under warranty must be warranted for the warranty period defined in the written instructions required by the manufacturer according to Subsection (4) below. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for Warranty Service Bring the STIHL...
