Thanks for the info, leaning / richening always confuses me lol, I think I know what they mean I just get them backwards. I think I will go and pick up some 20% this week and I will see if that will help it. What is better tho a medium glow plug or a hot one for these engines, or does it really matter, what is the difference. I will probably go by Brooklyn Hobbies on Tuesday since it's on my way home from work, I will ask them if they have those glow plugs and I will pick some up, I can always order from tower but if I would have known sooner what to get I would have since I ordered a new truck from them on Friday so it shipped already, so if I put another order in it's just more shipping, if they don't have them I'll wait until I need a bunch of things order everything at once.