kickstart bottoms out after rebuild

[jyeomans]

Hi all,
I recently just finished a rebuild of my 2000 kx 250.
I filled the bike up with coolant and oil and went to give the bike a kick. I got 2 good kicks but on the third kick it felt like the kick starter bottomed out and wanted to kick back.
just trying to figure out why it would do this? 

[jyeomans]

I am thinking this could possibly be timing related?
would a missing woodruff key cause this problem?

[Motorrad]

I am thinking this could possibly be timing related?
would a missing woodruff key cause this problem?

Yes

[jyeomans]

thanks a bunch