Sounds like your idle jet is clogged. This is caused by gasoline evaporating out of the carburetor during long periods of disuse which can leave a varnish residue. You will probably need to remove the float bowl and remove the jet to clear it as carb cleaning additives in the gasoline are usually useless for this problem. It is vital that you use the exact fit screw driver on float bowl screws as they are usually very tight.
The jet will have a very small opening and you could damage the jet if you use the wrong method to clean it (do not use a drill bit). First try a carburetor cleaner spray with the small plastic straw that comes with them. Look thru the jet hole by holding it up to a strong light to see that it is indeed clogged. Then try holding the small straw in the jet orifice and forcing the cleaner into and through the jet. Be careful that you don't deflect the spray back into your eyes. Use eye protection. You could try to soak the jet in a cap full off the cleaner for a while.
If that doesn't work a very small stiff wire might work to push the clog out (from a wire brush?). Then try the spray method again.
No, only use the choke until the bike can idle without it
check the auto choke is not staying on
That vehicle is throttle body fuel injected, there is no choke or idle adjustments. You have other issues such as a large vacuum leak causing your idle problem.
the choke is on
you choke may be on
there should be an idle adjustment on the right side of it
Possibilities are - stale fuel, how old is it? Blocked main jet or stuck needle jet. On choke, there is a little fuel which bypasses the main and idle jets, this allows it to idle with very little air. When you give it throttle, it uses all the fuel and air this bypass and idle jet can provide very quickly, and then starves for fuel as the revs increase. Basically the carby I would say needs a very good clean out, including all the jets.
well it depends on whatcarberator you have on it if yours have the choke on the side that you pull up then you idle it by turning the choke after you pull it up if your choke pulls out from the side then look on the right side of the carb and there will be a screw on the right side turn it too the right to get it to idle hope i helped
choke idle adjustment on 1988 Buick Riviera
twist the top of the choke, there is no idle screw on the 1999 yz250
to help it start running and idle
It's designed to idle a little faster when the choke is on. If you think it's too high, get it checked at a dealership