50:1 will work properly providing you use a modern synthetic oil made for saw use, but the fuel and oil must be premixed in it's own can and agitated thoroughly just before filling the saw. At these lean fuel to oil ratios, severe damage can occur quickly if the saw runs lean causing the lubrication to fail. Hope this helps!
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50:1 will work properly providing you use a modern synthetic oil made for saw use, but the fuel and oil must be premixed in it's own can and agitated thoroughly just before filling the saw. At these lean fuel to oil ratios, severe damage can occur quickly if the saw runs lean causing the lubrication to fail. Hope this helps!