Need Help for my 300TNT

after maybe 6 month stand i can't start my Benelli 300TNT.
I have charged the battery and now i try to start the machine.
Nothing goes. I have already filled the tank with fuel because the fuel gauge so strange flashes when starting .... but nothing helped.

What can i do now?
Before i drive without any problem...just let the Benelli stand for 6 month.

How can i check the spark? I think must remove the Tank.
Have any Video for help to check the sparks?

thanks for help....have also a video from the problem...but cant post here