ok it is 5 degrees literally outside today and im working on my motorbike inside a 70ish degree shop I installed a new to me carb im trading a guy went outside got bike started didn't have the power it used to went about 50 feet and died like it was out of gas got it home took off bowl screw drained gas made sure its got great gas flow tightened up intake /exhaust bolts cant get it started again even with starter fluid exhaust is flowing good intake and carb are sealed have fire tried without kill switch hooked up maybe weak cdi? any suggestions comment are appreciated