i need help wit my he23hp engine. i just got it and i need to know how much oil to put in it becuz the sites say 5 ounces and my spark plug fouled out after 5 minutes of riding wit 5 and wit 4ounces it foulded out after 20 minutes and i need to know if i should use 3.2 ounces (40:1). thanx!

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