just got this bike ,and found a mixture of petrol and engine oil are being exhausted through the engine breather pipe.is it head gasket ,valves,piston rings or what??

colin harper, June 2008

ENGINE BREATHERS ARE EXACTLY THAT ,THEY VENT EXECES FUMES INTO AIR INTAKE OR ATMOSPHERE USUALLY FROM WORN RINGS/BORE,THAT SAID THE FIRST THING ID DO IS GIVE IT A FULL TAPPET CLEARANCE CHECK.WOULDENT BE THE FIRST ONE I FOUND TO HAVE A VALVE CLEARANCE TIGHT ENOUGH TO LET INLET/EXHAUST FUMES/PRESSURE INTO THE BREATHER.CHECK MANUAL FOR PROCEDURE ,AND CHECK COLD MEANS NOT RUN SINCE YESTERDAY.

CAINE, June 2008