My kids 2003 Dinili 90cc quad runs great, but every time it sits for a couple weeks it won’t start. I have to take the carb off and blow out the jets, then it runs fine again. EVERY TIME !!! Help

 

I bet your running ethanol fuel.

 

Water in fuel? Tiny droplets can come together when a bike is left standing, and turn into a large drop that blocks a jet. When running, these little drops can get through, and there is more suction on the jets to help them through.

 

No, just running regular unleaded fuel