BMW R100R [15/168] Renewing air filter 2 cleaning fuel cocks

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ELECTRODE GAP The electrode gap essentially determines the ignition voltage requirements of the spark plug Electrode gap too small Excessive voltage reserve Insufficient mixture reaches the spark gap resulting in misfiring Electrode gap too wide High ignition voltage low voltage re serves e This may cause misfiring CHECKING SPARK PLUGS AND ELEC TRODE GAP INSPECTION II CHECKING ELECTRODE GAP WITH FEELER GAUGE OR SPARK PLUG GAUGE Electrode gap is correct if the specified gauge thickness can be drawn through between the electrodes with scarcely per ceptible resistance Electrode gap A _ 0 6 0 1 mm Wear limit A max 0 9 mm Once the wear limit A max has been reached replace spark plug CAUTION Do not bend electrode Risk of electrode fracturing when engine running Screw in spark plug Tightening torque Spark plug dry 25 Nm 2 4 RENEWING AIR FILTER Unscrew spark plug Examine spark plug in respect of colour appearance and for signs of damage Clean spark plug with copper bristle brush Remove lefthand battery cover 5 and righthand cover 6 Open the 4 spring clips 9 and lift off top section of air filter 8 Take out air cleaner element 10 2 5 CLEANING FUEL COCKS Drain fuel tank 4 Slacken the union nut 2 and take fuel cock 3 off the fuel line Unscrew union nut from fuel cock and take off fuel strainer 1 Clean fuel strainer with fuel NOTE Install new air filter element with lettering vorn in direction of travel and arrow mark ing pointing upward Install new air filter element Fit on air filter top section and secure with four spring clips 2 12 CAUTION Examine sealing ring for possible signs of damage Blow fuel strainer dry with compressed air and re install 2 13

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