kickback

I have three bergs, 99 fx600, 98 fe600, 99 fc501. the fx600 will kick back hard when I try to start, the other 2 bike never do.. just wondering what might cause this, I about broke my ankle the other day... is there any thing that can be done to fix this?

Hi guiys, Just bought a 2000 FC600 a couple of weeks back. The bike was going really well and was quite easy to start until the kickstart-operated decompressor cable snapped. :( When the cable snapped it became almost impossible to kick the bike over - the lever was barely budging even with...