There is a few things to keep in mind to keep the fuel injection happy.
1. Never give throttle when you start the engine. The computor will handle everything for you.
2. Always turn off engine with the key. Just another thing to keep the computor ECU happy.
3. When you turn on the key at start up, wait a few seconds before you start. The fuel pump build up fuel pressure and the ECU will wake up.
It can happen that engine stall when you let off throttle fast. There are some earlier threads about that.
Tigers shutting down
engine stall
Mine died on me once and as you can se on those other threads you are not alone with this problem.
Good luck!