they will work, but probably not very well & likely the jetting will be miles out. 4 strokes & 2 stroke carbs have different emulsion tubes (with exception of rotary valve 2 strokes). I have seen people bang on 2 stroke carbs & go ok, but I suspect you will have more problems than you solve & you will be entering a big unknown. Also on a stock engine they will be too big.
ok so the stock carbs leak. Are they brass floats? Have they leaked & are full of petrol? What does the float valves look like? grooved (& with the pointy bit doing the sealing, I have seen them put in upside down, how we laughed).
can you take the brass seats out? is there an o-ring? you can sometimes fix the seat with a small ball bearing in the hole & a whack with a punch.
Have you tried adjusting the float height so the fuel level is lower?
Don't you look at my accountant.
He's the only one I've got.
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