Problems starting

[IZ 250]

My bike starts cold with 2 kicks without choke but it revs like its out of fuel. Like I cant stop it even if I hold in the stop button the stop button works. When its warm it doesent do this. If I use the choke it still does this. What should I do to correct this? Thanx.

 

[souphmars]

this is just a guess - but u could have an air leak - when it is cold the leak is big enough to cause a problem - when the bike is warm, the leak closes up therefore not being an issue - just a guess - hope this helps