Don't worry about your engine being deffective or you being clumsy. We've all gone through exactly the same when trying to break in our motor!!
All that I read sounds like good advice:
-Plug and ignitor are ok...
-Heating the motor (even with a hair dryer) before starting helps it to not stick and improoves behaviour later on.
-It also helps to loosen your plug a bit and tighten it back with the ignitor once the motor is running.
-Start your truck on a big piece of wood or a brick , so the wheels are off the ground and you can tune it with out the truck taking off. A strarter box takes care of both issues at one time.
-Always tune your motor when it is at working temperature. At least let it run with slight taps on throttle for a couple minutes.
-I'd say also lean out (clock-wise) a bit the low end needle and lower idle (counterclock-wise) a bit, ...carefully!! Little by little. Alow a few seconds for changes to take efect.
-Take it easy and enjoy!!!
