Hi merchjo, It sounds like what Acs_guitars said, "an oil lean condition & What oil ratio were you using? 25:1, 32:1, 50:1?" Here is a helpfull tool Gas Oil Mixture Ratio Calculator. [link=http://www.csgnetwork.com/oilfuelcalc.html]Csgnetwork[/link]. Just put in the # of US Gallons and the
Gas/Oil Mixture Ratio, then click Calculate.