2003 ES 400 no problem with starting. Once it is started with choke out, it runs OK, put choke in and put in gear and then it sputters and dies. If I let it warm for a couple of minutes with choke out and then put choke in it does not die when put into gear. Once it is warm it runs good. Anybody experiencing this and how can I keep it from sputtering and be able to start and go?

 

Assuming you have the idle speed correct... Try to richen the idle mixture screw 1/4 to 1/2 turn, set the idle speed when it warms up. The choke is there for a reason. You need to let it warm up for a minute or two before you cut loose.

 

yea and also make sure that your jets are kept clean along with the rest of the quad(filter,oil)

 

Well, any engine, especially a carbureted engine should be allowed to reach operating temperature b/4 use. If the engine is cold, it will need more fuel. That's why it needs the choke on to run correctly. Once up to operating temperature you can release the choke and ride.
It does help to turn the mixture screw out 1/2 turn on almost all the Hondas straight off the floor. Just about every one of them is running just a tad too lean at idle.