Stihl Fs 80 R Owners Manual
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Page 41
40 English / USAFS 80, FS 80 R, FS 85, FS 85 R Rule of thumb Turn high speed screw (H) about 1/4 turn over for every 1000m (3.300 ft) change in altitude. Conditions for adjustment Adjust the high speed screw (H) only if you are using a mowing head, making sure the cutting lines are full length (as far as the limiter blade on the deflector). If you mount a metal cutting tool, use the standard setting. : Carry out standard setting without changing position of high speed screw (H). : Warm up...
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41 FS 80, FS 80 R, FS 85, FS 85 R English / USA If the engine is low on power, check the spark arresting screen in the muffler. : Lift spark arresting screen and pull it out sideways. : Clean spark arresting screen if necessary. : If screen is damaged or coked up, fit a new one. : Refit the spark arresting screen. * see “Guide to Using this Manual” Wrong fuel mix (too much engine oil in the gasoline), a dirty air filter and unfavorable running conditions (mostly at part throttle etc.) affect the...
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42 English / USAFS 80, FS 80 R, FS 85, FS 85 R To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press spark plug boot (2) snugly onto spark plug terminal (1) of the 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 create arcing that could ignite combustible fumes and cause a fire. : Check grease level regularly - about...
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43 FS 80, FS 80 R, FS 85, FS 85 R English / USA Removing the Rope Rotor : Take out the screw ( 5). : Remove the rope rotor very carefully. The rewind spring is seated in the rope rotor and may pop out and uncoil if care is not taken. The pieces of broken spring may be under tension and fly apart unexpectedly when you remove the rope rotor. To help reduce the risk of injury, wear face protection and gloves. Replacing the Starter Rope :Use a screwdriver to pry the cap ( 6) out of the starter...
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44 English / USAFS 80, FS 80 R, FS 85, FS 85 R : Carefully remove the parts of the old spring from the starter cover and rope rotor. : Insert the new rewind spring in the rope rotor and, at the same time, engage the outer spring loop in the rotor’s recess – the wire retainer slips off in this process. If the spring pops out and uncoils, refit it in the counterclockwise direction, starting outside and working inwards. : Go to Installing the Rope Rotor. Installing rope rotor with rewind spring...
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45 FS 80, FS 80 R, FS 85, FS 85 R English / USA Fitting the Starter Cover : Push the upper mounting boss ( 2) under the shroud ( 4) – line up the tank ( 3)and push the lower part of cover onto the tank. : Insert and tighten down the housing screws ( 1). For periods of about 3 months or longer : Drain and clean the fuel tank in a well ventilated area. : Dispose fuel properly in accordance with local environmental requirements. : Run engine until carburetor is dry – this helps prevent carburetor...
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46 English / USAFS 80, FS 80 R, FS 85, FS 85 R : Resharpen the cutters (1) uniformly – do not alter the contour of the parent blade (2) in any way. See cutting tool packaging for additional sharpening instructions. 22 1 2 11 002BA042 KN
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47 FS 80, FS 80 R, FS 85, FS 85 R English / USA 1) STIHL recommends that this work be done by a STIHL servicing dealer * Not in all versions, market-specific Maintenance Chart Please note that the following maintenance intervals apply for normal operating conditions. If your daily working time is longer than normal or cutting conditions are difficult (very dusty work area etc.), shorten the specified intervals accordingly. before starting work after finishing work or daily after each refueling...
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48 English / USAFS 80, FS 80 R, FS 85, FS 85 R Please note that the following maintenance intervals apply for normal operating conditions. If your daily working time is longer than normal or cutting conditions are difficult (very dusty work area etc.), shorten the specified intervals accordingly. before starting work after finishing work or daily after each refueling stop weekly monthly every 12 months if problem if damaged as required Cutting toolsInspect XX Replace X Check tightness of cutting...
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49 FS 80, FS 80 R, FS 85, FS 85 R English / USA 1 Fuel pump 2 Choke lever 3 Carburetor adjusting screws 4 Starter grip 5 Fuel filler cap 6 Fuel tank 7 Muffler (with spark arresting screen*) 8 Throttle trigger 9 Slide control 10 Throttle trigger interlock 11 Bike handle 12 Handle support 13 Throttle cable retainer 14 Clamp (carrying ring for harness) 15 Spark plug boot 16 Air filter cover 17 Machine support 18 Barrier bar, not in all versions, market-specific 19 Loop handle 20...