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mt 300x Mc culloch strimmer ?

my strimmer won't start
wwheeler, August 2008
PROBLEM: 2 TROKE OIL PETROL MIX:
40 to 1 = 40 gallon petrol to 1 gallon oil

take the spark plug out and look at the (colour) of the centre electrode. it should be pale brown. IF IT IS BLACK AND GREASY, (CENTRE ELECTRODE SHORTED). short between centre electrode and body of plug. YOU MUST CLEAN WITH WIRE BRUSH AND OR PETROL.
too much oil will not start
too little oil and engine seizes

GERALD WHITE, May 2010