I was getting a rattle from behind the kickstart on my husqvarna te 610 v reg and the one day I tried the kickstart and it wouldn't go down at all and then all of a sudden I start gettin a clunking noise from the same place so I took of the side casing ( kickstart side) and there was 3 cogs two on the right and one on the left and the one on the right at the back was loose is there any one that cud tell e what this is please and roughly cost on fixing thanks