Turns over once and stops, that sounds like dead battery.
My S4RS has an old battery in it. If I leave it sit for longer than about 5 days unused, it will test out at 12V+ but falls flat on it's face as soon as I hit the Hell's yeah button. Horn works, lights are bright as can be, gauges sweep, and fuel primes. If I put it on the trickle for about 30 minutes I can usually get it to turn over just enough to fire. Once up and running it's fine. It'll start the next day no problem. Just don't let it sit for a week or plan on plugging it in.
I need a new battery and I know this, I'm lazy and cheaper than an ethnic stereotype. Right now my disposable cash is going into my new tractor so it will be awhile until I buy a new battery.
06 Paul Smart Sport Classic NFS ever.
08 S4RS Tricolore #081 NFS ever.
01 M600, aka, The Pink Monster
97 900SS CR
72 Norton Commando 750
03 KX60 with S4R rear shock,Honda CB350F, Hodaka Ace90, 3x Yam-YGS1, Yam-CS3 200, Vespa small frame, Gilera 106, Puch Sabre, Puch 50 Boy Racer, Ducati 250 bevel, Benelli 250, Benelli 360, Honda CB350T, and many more.