08 700xx owner here. Have been told by lots of people that I needed to adjust my valves. My engine was running a little noisy so I decided to open it up and my valves had 0 slack so I adjusted them to spec, .006 for intake, .008 for exhaust. After closing everything back I got it to start once, but after that it cranks slower now and will not start at all. I unplugged the fuel injector once and the solenoid to get to the valve covers but I quadruple checked that everything was plugged back in and tight. Fuel pump definitely has fuel in it, definitely have compression, but Im not sure about spark. I took the plug out, put it back in the coil and touched it against the motor to ground it and tried starting it but I couldnt see any spark. I'm not 100% confident that I'm doing that method correctly but I really cant tell. Anyone know what I may have done wrong?