I just replaced all ignition components and installed a Sierra carb kit and now I have fuel dripping/running out of the exhaust when I try to start it. It had some pretty violent pops and tried to start a few times but there is just too much fuel. I have followed the instructions for setting the float correctly and have it parallel to the top of the bowl when inverted which seats the needle. When I blow into the fuel line while inverted, it will not let air in, when I turn it right side up it allows air into it. The only issue I can see is that the kit did not appear to have any new packing washers and the old ones were damaged when I removed them. I tried to use some thin washers in the kit but I don't think they are the correct ones. Would the lack of the correct packing washers cause this severe flooding? If not, what else should I check? The motor did start and run rough prior to my "maintenance". Thanks.