dltx duplex carbs

henry g

New User
Are these carburetors slow to responding until the tractor warms up? I have to leave it partially choked until the tractor warms up then it will run fine. When you first start it it wants to die or cut out until the engine has ran and warmed up. Or.. do I have an internal or settings problem? It idles fine and seems to have plenty of fuel but always acts silly when first starting. Tractor is a 70.
 
There are a total of six nearly hidden tiny orifices that supply idle fuel. If any are plugged she won't transition. Then there are the internal carb passages behind the pressed in balls that seal the drilled passage . The wrong float height will cause problems. The fuel bowl is vented internally. If the bowl gasket leaks the fuel bowl will be at atmospheric pressure. Dunking the carb in solvent and blowing with compressed air will not clean a JD carb.
 

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