Indicator Problem & fitting front fork seals

Hi all

Am new to this and keen to learn all about bike maintenance so will no doubt have loads of questions!

I have bought an 650 sk5 as my first bike and have noticed that it has developed a problem with the indicators. When I switch on the ignition, I can indicate right no problem, cancel that and indicate left, it seems to kill the indicators. The display briefly flashes but no indicator flashing and then I can't even indicate right unless I kill it off and switch on the ignition again. I have had a quick look at all cables but can't see any loose/chaffed connections having replaced my battery recently. Any thoughts?

Also, I need to replace the leaking fork seals, anyone have any step by step guides out there?

MTIA

Dan