Hi. I just did an led flasher relay on my f1.. It was 3 pin and I just took a random pot luck attempt at connecting the wires.. On the third try it all worked great.. For the "adapter" I just got 3 lengths of short wire, put a tiny spade on one end that fit inside the original socket and the other end a female spade connector to clip onto the relay.. Once all plugged in I just did a tight wrap of black leccy tape to make it neat and water proof.

Should be easy if you have a 2 pin.. Just make the little wires with the correct ends on and u got a 50/50 chance of getting it right.. If the indicators don't work on the first attempt switch them over and job done

 

Hmm. I had ordered led adapter leads which neatly slotted into the connector.Very easy. But you need to be careful in ordering the correct lead as the connector design varies, even for the ones which are advertised as Honda compatible!

I ordered these and they were perfect fit for my CBR600f 2002 UK model.

LED Indicator leads adaptor leads dont cut your wiring loom Honda Kawasaki | eBay

The led indicators themselves are of poor quality. The flash seems to be very week but I should take the blame as well as I went for a 12 led indi all lined up as they looked sleek Also, the stem detached from the thread upon tightening the nut on the other side. You can only get so much for 6 bucks I guess. I have now ordered a supposedly better 15 led indi, but the Rizomas for 40 bucks each should be the proper deal
I have for now only installed one led and kept the rest of the 3 as stock.Will live with the higher flash rate till the new indi's arrive as don't want to use the low wattage led relay with 3 stock indis...

 

Not sure if you've figured out the wiring yet, but the blue connector with the 2 pins in it is not grounded. There should be a separate connector with a green wire that is the ground for the blue connector. In the blue connector (the other side is orange) one pin is for turn signal and the other for marker light. If the new light only has 2 wires, the marker light gets disconnected. Hopefully you are not required to have them where you live. Otherwise you will need lights that have both functions.

 

WHat is a marker light?
Do you mean the small pilot bulb in between the 2 headlamps?
Here in the UK you don't need it on and it is turned on by the same switch which turns the headlamp on(it's a two step slider switch).
I did notice an orange connector beside the blue one but the original Indi wiring was only coming out of the blue one

 

The original setup should have been a dual filament bulb. One to flash and the other to be on all the time when the bike is running.

But being you're not in the states, yours may be different.