Product Instruction Manual
Page 24
...engine N Check the air filter and replace it is 3/4 turn open . N Start and warm up the engine. 22 BR 500, BR 550, BR 600 readjust if necessary - Adjusting idle speed Engine stops while idling: N Turn the idle speed screw (LA) slowly clockwise until the engine runs smoothly. ... and operating conditions. Machines with adjustable carburetor The carburetor comes from the factory with a standard setting. Such machines have been set at the factory to adjust the carburetor. carburation, ignition, timing and valve or port timing) without adjustable carburetor On certain machine versions it...
...engine N Check the air filter and replace it is 3/4 turn open . N Start and warm up the engine. 22 BR 500, BR 550, BR 600 readjust if necessary - Adjusting idle speed Engine stops while idling: N Turn the idle speed screw (LA) slowly clockwise until the engine runs smoothly. ... and operating conditions. Machines with adjustable carburetor The carburetor comes from the factory with a standard setting. Such machines have been set at the factory to adjust the carburetor. carburation, ignition, timing and valve or port timing) without adjustable carburetor On certain machine versions it...
Product Instruction Manual
Page 30
... X X Valve clearance Check and adjust if necessary after 139 hours of operation X Combustion chamber Decoke after first 139 hours of operating, then every 150 hours X Sparl arresting screen2) in muffler Check Clean or replace X X All accessible screws and nuts (not adjusting screws) Retighten X Antivibration elements Check X Have replaced by dealer1) X X 28 BR 500, BR 550, BR 600...
... X X Valve clearance Check and adjust if necessary after 139 hours of operation X Combustion chamber Decoke after first 139 hours of operating, then every 150 hours X Sparl arresting screen2) in muffler Check Clean or replace X X All accessible screws and nuts (not adjusting screws) Retighten X Antivibration elements Check X Have replaced by dealer1) X X 28 BR 500, BR 550, BR 600...
Technical Guide
Page 7
... independent idle . this cancels the effect of the high-speed adjusting screw (H) and the low-speed adjusting screw (L) is limited by limiter caps (approx. 3/4 turn). Choke knob with ignition timing adjustment . All-position diaphragm carburetor with spark arresting screen, depending on... Cam disk at low speed (starting): 1.7 Carburetor . The centrifugal mechanism retracts the decompression cam (1) - This lengthens the valve opening time, which reduces the compression Cam disk when the engine has started: 1.8 Ignition system . Decompression cam (1) projects and actuates the ...
... independent idle . this cancels the effect of the high-speed adjusting screw (H) and the low-speed adjusting screw (L) is limited by limiter caps (approx. 3/4 turn). Choke knob with ignition timing adjustment . All-position diaphragm carburetor with spark arresting screen, depending on... Cam disk at low speed (starting): 1.7 Carburetor . The centrifugal mechanism retracts the decompression cam (1) - This lengthens the valve opening time, which reduces the compression Cam disk when the engine has started: 1.8 Ignition system . Decompression cam (1) projects and actuates the ...
Technical Guide
Page 9
...chain tensioner Bearing and sliding surfaces for throttle trigger, brake lever and trigger interlock STIHL special lubricant 0781 417 1315 Bearing bore in rope rotor, rewind spring in fan housing STIHL Press Fluid OH 723 0781 957 9000 Rubber elements Standard commercially available CFC and ...708 6310 4282 708 6320 4282 708 6330 4282 710 9100 Use Straight nozzle for BR 500, BR 550 Straight nozzle for BR 600 Bent nozzle for BR 500, BR 550 Bent nozzle for adjusting valve clearance 4282 007 1001 Set of parts for BR 600 BR 500, BR 550, BR 600 Page 9 4. Technical Information 08.2005 3.
...chain tensioner Bearing and sliding surfaces for throttle trigger, brake lever and trigger interlock STIHL special lubricant 0781 417 1315 Bearing bore in rope rotor, rewind spring in fan housing STIHL Press Fluid OH 723 0781 957 9000 Rubber elements Standard commercially available CFC and ...708 6310 4282 708 6320 4282 708 6330 4282 710 9100 Use Straight nozzle for BR 500, BR 550 Straight nozzle for BR 600 Bent nozzle for BR 500, BR 550 Bent nozzle for adjusting valve clearance 4282 007 1001 Set of parts for BR 600 BR 500, BR 550, BR 600 Page 9 4. Technical Information 08.2005 3.
Technical Guide
Page 13
... See instructions for use, "Setting the carburetor," to set the carburetor for users. 5.4 Valve clearance The valve clearance must be used for adjusting valve clearance" must not be checked and adjusted when the engine is equipped with an accelerator pump. The valve clearance may only be removed when making the standard setting. . Kit 4282 007 1001...
... See instructions for use, "Setting the carburetor," to set the carburetor for users. 5.4 Valve clearance The valve clearance must be used for adjusting valve clearance" must not be checked and adjusted when the engine is equipped with an accelerator pump. The valve clearance may only be removed when making the standard setting. . Kit 4282 007 1001...
Technical Guide
Page 15
... valve clearance must be too large or too small. . Rotate the crankshaft once more until the tip of the flywheel is lined up and down (see arrows), the piston is found to be adjusted ...if it clockwise again until the tip of the flywheel is flush with the ignition coil as shown The piston is now in the top dead centre for valve overlap . Turn ... forth a few degrees - Technical Information 08.2005 5.4.3 Determine top dead centre Page 15 5.4.4 Check valve clearance The cam disk cover must be turned backwards in order to eliminate the flank backlash from the ...
... valve clearance must be too large or too small. . Rotate the crankshaft once more until the tip of the flywheel is lined up and down (see arrows), the piston is found to be adjusted ...if it clockwise again until the tip of the flywheel is flush with the ignition coil as shown The piston is now in the top dead centre for valve overlap . Turn ... forth a few degrees - Technical Information 08.2005 5.4.3 Determine top dead centre Page 15 5.4.4 Check valve clearance The cam disk cover must be turned backwards in order to eliminate the flank backlash from the ...
Technical Guide
Page 16
... in kit 4282 007 1001 "Parts for adjusting valve clearance". . Fit valve cover and tighten screw with the ignition coil. . Fit starter cover and tighten down screws . Check engine does not leak TI_08_2005_11_01_02.fm Turn nut (2) clockwise to reduce the valve clearance or anticlockwise to increase it warm up ... gauge must produce a slight suction effect when it is flush with a torque of the flywheel is pulled through . Check the valve clearance again and re-adjust if necessary . Start engine and let it - Screw in spark plug, fit shroud, and plug in spark plug boot .
... in kit 4282 007 1001 "Parts for adjusting valve clearance". . Fit valve cover and tighten screw with the ignition coil. . Fit starter cover and tighten down screws . Check engine does not leak TI_08_2005_11_01_02.fm Turn nut (2) clockwise to reduce the valve clearance or anticlockwise to increase it warm up ... gauge must produce a slight suction effect when it is flush with a torque of the flywheel is pulled through . Check the valve clearance again and re-adjust if necessary . Start engine and let it - Screw in spark plug, fit shroud, and plug in spark plug boot .