IMGP0400
Steve Best

IMGP0400

Stock cylinder head after 36 kms of 55-66kph with semi-synthetic oil. Soot is soft.
Minor detonation at max rpm, plug temp looks OK, no damage.
Yes, that is fine. The colour is not very accurate in that picture but it is a dark tan colour. Well worn 2-stroke plugs get sooted from the oil if you are using a mineral oil. Using the least amount (50:1) of synthetic oil makes it easier to read the fuel mixture on the plug.
 
What mixture is safe to run? Was told 28:1-30:1 from previous owner. Haven't mixed my own batch yet. Thanks in advance
 

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