G62 Walbro carb 101 Been looking at Walbro HDA 48 G62 carbs for 23 years, only one cleanable screen in there, about 3/8 diameter, under the diahphragm with one screw in the center...
The reeds you speak of are neoprene or fiberglass material..there are two gaskets...The gasket with the hole in the center goes against the carb body on the side with the steel cover held on with 4 screws...a diaphragm with a metal center goes on top of that, the cover holds it all together...There's a lever under the diaphragm that lifts the inlet needle to admit fuei...The end of the lever should be flush with the casting next to it..Not higher, not lower, flush..
One the other side, with the screen, the diaphragm with the flappers goes against the carb body, the gasket on top, then the cover with the single screw...
If the carb won't pull fuel when choked there is a leak somewhere...Look at the gaskets under the carb block...2 Gaskets, one under the block, one under the carb..Any leak there if bad enough will leak engough so that the choke won't work...
A 62 carb in good shape will pull fuel at least 2 inches with each choke flip and will pump and run the engine at least 4 feet straight up...
Last but not least is the infamous Horizon brown phenolic carb rotator block,,They crack and leak..They were replaced by the hard black plastic block,, Better, but the pulse passage on the top surface is sometimes too close the edge of the main venturi hole so the pulse leaks out there..Misalignment of the gasket is a sure leak..Some hot stuff on the edges of the passageway keeps the gasket in place..Go easy...
Disregard any posts about hooking the diaphragm stud to a slot in the lever, it doesn't exist in the HDA series...