Yes I understand that,but what I trying to work is why would I need to.I mean how or why would they be that far out to cause this,as I wrote before after putting carby back together there in now a big difference in the amount of fuel going into the combustion chamber.I now can't see that the carby would be an issue.Before I did the carby it would end up dripping fuel from it,now it doesn't.Also the plug is not wet any more,you can see it is moist where as before when I'd pull it out the plug would dripping with fuel.The issue I have is I have never played with these carby's before and this could be do or die for the carby.If I stuffed it up it could very well be the end of it.I'm just fairly sure it wouldn't be a carby issue now.