First get your battery charged triik trriiikkk comes when there is not enough power to engeage relay to ignite the self starter... easy way to test it to conect both main terminals of the relay by any metal rod or a screww driver the bike self will rotate may be you found some sparking doing this.. but it would assure that you self is ok and battery is down beyond relay limit..
After getting it charged if still it does that sound and you have made sure the batery is ok then clean the hot(red) positive wire coming from Batter to relay and see if it not week, if it is corroded and rusted then its week and canot suport self any more get it replaced then see if the other wire goin to self from other node of Relay is also healthy after that I m sure there is on culprit left to stop self from working ... 
hope it helps.
Ride Safe.