If your fuel valve has a bowl, unscrew it to see if it has residue in it, like rust flakes in the tank. If so, clean it. See if you have a steady flow of fuel from the fuel line going to the carb.
Next remove the carbs, remove the float bowl, does it have residue in it, if so, clean it but most importantly, carefully remove the float then remove the brass needle seat. There is 1 screw then an O ring, just grab it carefully with pliers and rock it out. There is a screen on the top side. Clean it and reseat the brass needle seat.
Take care in removing the pivot pin from the float. DO NOT TAP the pin out as it is very easy to break off the supports that hold the pin, Better to take some flush cutting diagonal pliers and slip in behind the pin head and work the pin out. Should come pretty easy. Same on reinstalling the pin, be careful. Many a carb has been damaged this way.
Steve
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'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
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