Baja Dune 150cc project finally running 

The aftermarket air filter doesn't have any vacuum lines on it. The vacuum line comes off the intake boot from the motor and into the carb. you can just block them off if you don't want to use them

So the only lines connected are fuel line and the line that goes to the intake manifold.. what did you do to the other ones

Yes, hold the brake down to start. Turn the key to get the motor spinning then left off the starter for the ignition to fire. It doesn't start like a car.

or can anybody explain to me how to get continuity or a spark out of this go-kart it's the same identical go-kart please help

I don't recall. This was a while ago. Sorry.

I no longer have this but I know the brand was Carlisle.