You need vacuum to the petcock and to the fuel pump.

 

You said you replaced the carb . Is it a Chinese knockoff ? What happened to the stock carb ?

 

Can't get the top of the old carb off cause the screws are stripped. I ended up getting it working. The issue was lack of fuel in the tank (duh) and getting new vacuum hoses with a three way set up

 

So you got it running with an aftermarket carb ? Most folks on this forum say to stay away from them . I guess you got lucky .

 

Yeah it's working so far. Worst case I'll drill out the old screws if need be

 

That’s probably a good idea . I think most of the fine knowledgeable folks on this forum would agree that there’s nothing better than freshening up the stock carb for these finicky machines . Good luck .

 

Please read: Steel bolts or screws always seize in aluminum parts. I used this tool on my Suzuki with Mikuni Carb for the same exact screws you describe and just a little hammer tap broke them loose. Also I've used it on my truck with a 2lb. hammer hard hit to break large bolts loose.
If you own a motorcycle/ATV/UTV or anything aluminum engine/transmission then a hand held Impact Driver is a necessary tool. Inexpensive, holds screwdriver bits that are impact hardened and you simply whack it with a hammer which drives the screwdriver bit you choose (Philips or straight) into the machine screw with a jolting down force (holding it in the slot or cross) while a spring loaded torque multiplying twisting action takes place. You select clockwise or counter clockwise like using a ratchet. Even some mangled screws/bolts come loose. If you use this to begin with then your screwheads never get ruined. Once a bolt or screw is jarred loose they turn out easily most of the time unless they were cross threaded when put in.
_ link to this tool Harbor Freight $10

https://www.harborfreight.com/6-bit-impact-screwdriver-set-with-case-64812.html

_ Youtube video showing how to use it.

_ Anti-Seize Paste on the threads before re-installing them, one bottle last forever. Amazon.com: LOCTITE Automotive Silver Anti-Seize Lubricant: Heavy-Duty, Temperature Resistant, Petroleum-Based Lubricant Compound - 8 oz Brusttop Bottle, 1 Pack : Automotive