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not 100% sure but almost all new saw says 50 to 1.but i never run them that lean even if they saw its fine.i mix my stihl 35 to 1.if it doesnt fowl plug i run em heavy,i have a old 1980 saw that has cut 300 cords of wood and never had any work at all except replaced fuel line and filter.

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14y ago

What else can I help you with?