Stihl MS 210 Instruction Manual - Page 46

English NOTICE To avoid damaging the filter, do not use tools for removing and installing the air filter. N Blow out the filter with compressed air from the clean air side. If the filter fabric is caked with dirt or no compressed air is available: N Wash the filter in a clean, nonflammable solution (e.g. warm soapy water) and then dry. N Reinstall the air filter. Engine Management Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburation, ignition, timing and valve or port timing) without the addition of any major hardware. Adjusting the Carburetor General Information The carburetor comes from the factory with a standard setting. This setting provides an optimum fuel-air mixture under most operating conditions. Preparations N Shut off the engine. N Check the air filter and clean or replace if necessary. N Check the spark arresting screen (not in all models, country-specific) in the muffler and clean or replace if necessary. Different Standard Settings Different carburetors are installed at the factory. A different standard setting is necessary for each of these carburetors. Standard setting A - High speed screw (H) = 3/4 - Low speed screw (L) = 1 Standard setting B - High speed screw (H) = 3/4 - Low speed screw (L) = 1/4 44 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C