started my motor first time in 2 years.the motor fired right up,but gas was leaking from hole on top of lower carb.i removed lower carb and cleaned it,pin & seat were dirty and float looked ok. that fixed leak.but now i have a bigger problem.motor wont fire at all now, allthough carbs are getting gas and and spark plugs are getting fire. did i mess something up when i pulled carb?also had to remove oil tank to get to carb but didnt disconnect any wires. im lost...