RE: Gst 7.7 wont start
I run O.S. 8 plugs and even when the truck sit's months, with after run oil, it starts in 2-4 pulls almost every time. I just put my finger on the exust port, pull 2-3 pops, put the glow starter on and a few short yanks later I'm off.
How many gallons did he run? Like TRD said, start from factory settings and we'll work from there.
Since your new to the truck, make sure you have a one way valve from the exhaust TO the tank to solve the half tank lean issue we all have. Unless you have a 175cc tank or smaller on it(I think that's the largest I've seen without problems).
Good luck, once you get it running you'll love the truck, it's a beast.