Trouble starting when warm
 

I always had this problem with the bike. When the machine is competely cold i pull choke a bit and it always starts first kick. However, when I drive 15 mins or so, turn it off, and try to start it its real hard. I kick and kick for 7 or 8 times, sometimes more and then it starts. It starts more easily if i pull the throttle while kicking.

I completed recently top end rebuild but it did not help with this at all. What should i check first?

It's an XT600 2KF.

Thanks,
Vuja

If it needs a little bit of throttle to start when warm try turning the tick over up slightly and not giving any throttle.