Gear change/front sprocket

[limax2]

I think it maybe the front sprocket. Is there anything I need to know? I was just going to chain the front sprocket and leave the rest. Its the original sprocket so has done 21k not sure if that's a lot for a front sprocket or not.... I guess I am ok just changing the front and leaving the chain in situ?

Any help greatfully received.

I don't think the front sprocket will have any effect on your gear change issue. They say you should change the sprockets and chain together but if the chain and rear sprocket are o.k. and the front is looking worn I would just change that one. I also have a Scottoiler on and still on the original chain and rear sprocket at 45k miles and still not showing signs of wear. However I am now on my third front sprocket, so 21k for front sounds about right on the FZS600 with a lubricated chain. If I was fitting a new chain I would fit new sprockets irrespective of their condition. You will probably need to move the wheel forward to give enough slack to replace the front sprocket and if not already done so replace the 9mm thick sprocket nut with the 12mm one.