Another issue could be that if your bike is jetted close on a mixture that has very little oil in it the mixture is rather thin. If you add significantly more oil to the gas the mixture gets thicker and is harder to flow thru the jets of the carb. In this case your fuel/air mixture is lean from a rich oil/gas mixture.
Although this may seem obvious to some , I am elated :yeehaw: that I could have possibley assisted Rich :worship: ina small manner
I am not :o to admit I am doing :moon: kissing so I am ready for the :flame: But I just love these little emotion things today for some reason