196cc clone(s) carb problems?

#1
I recently traded a riding mower for two Baja Heats with 196cc clones on them. I'm entirely new to minibikes, but both bikes have issues running. So here are my questions.

1. Bike A only runs and starts with throttle, but accelerates and maintains top speed fine until I let off, it's missing a gasket inbetween the carb and the insulator plate, would this cause that?

2.Bike B runs and drives fine for a little while, but then, especially after I've had the throttle wide open on my track, starts running only on choke, and dies on throttle. It doesn't have an insulator plate and is missing multiple gaskets. I'm planning on replacing the carb and all gaskets, would that likely fix my problem? I'm assuming my gas has been boiling, causing it to run poorly/ air leaks due to lack of gaskets on carb.
 
#2
You need all gaskets and insulator plates...these carbs and plates have air bleed holes that have to be able to get air. Correct gaskets have to be in the right places to. Hope this helps.
 
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