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Starts w/ Choke OK - Stalls When Warmed Up @ Idle

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1982 GS450T:

-starts fine with full choke (no throttle) when cold
-as I turn off the choke, RPMs rise a bit then back down to idle ~1200rpm (while closing choke)

*idle mix screw set to 2 turns out

ONCE WARMED:

-seems to idle ok but stalls when put on kickstand occasionally?!?!?!

ONCE HOT:

-stalls on decel to idle
-wont start with choke
-starts with NO choke and with small/med turn of throttle

What needs to change? Is my idle adjustment screw set too low?
..............................I'm guessing this^^^

Thanks guys.
 
float levels to low, fuel restriction? choke is for cold start only, cuts off air supply to richen mixture because of moisture and and cold fuel vaporizes slower. Clean carbs!!
 
Carbs are super CLEAN! Per GSresources standards...

New o-rings, and gaskets, floats set to 26mm +/- 1mm, no fuel filter, new carb boots and other o-rings...
 
If the bike stalls when warm, that usually means rich. What to the plugs look like after a low throttle chop?
 
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