If you open up the screw on the bowl to drain it and fuel comes out, your problem isn't the jets.
It's the carburetor itself. The passages inside the cast body of the carburetor are plugged.
You can either have it ultrasonic dipped, or just get a new one and save yourself any more trouble.
I'm an actual certified mechanic with 20 years experience.
If you're not getting any fuel out of the bowl drain then you need to follow that back towards the tank until you do find it.
That would be floats, needle and seat, fuel line, fuel filter, and petcock valve.
The blast is purely a torque engine. It has very little horsepower and a short rev.
It's more or less a 1200 sportster engine with the entire rear cylinder removed.
Still fun for short rides.
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