Well, I have recently bought new D4 Diablo buggy and i have an engine related problem: when i pull starter(don't know what you call it, but it's the thing you pull like crazy to start the motor), well it stays out. The problem started today, it worked fine before(used approx. 10 tanks of gas before it began). I tried taking the motor off the model and starter jumped in, but when i started the motor few times after that, problem appeared again. Anyone know what could be the cause?
(!English is not my primary language!)

your english is quite good, i think your problem is that you are pulling the pull start too far out, dont pull it more than 20cm if you can help it, 30cm max

I'm trying not to pull it too far, and I think i never pulled it more than 3/4 of the 'rope' length. (Maybe I did it the last few times without knowing it(hope not)). But what can I do now? Could it get any worse if I use the car and whenever pull start would stay out i'd get it in manually?

pull starts are actually quite long, never go past 10 inches, you could damage it more if it hasnt stopped working already

Some odd things are happening... Pull start works great when the engine is cold. When i start the engine, it gets warm and if I turn it off and try to start it again while it's still warm, problems begin. Then, if I leave engine to cool down pull start jumps in (sometimes with a little help from me) and works great. But anyways, I've sent it to repairman and I have some new questions and will write them here so I won't open another thread:

-What's with the engine overheating. Is there any way I can know if it is overheating(I don't have IR thermometer or something...)?
-Brakes... I think that when I turn servo to ''full gas'' and then move the car(engine is not turned on of course) it moves slightly harder than if servo is not ''set for full speed''. Is that normal?
-Finally, how do you 'run-in' engines(I mean the first time you turn it on what do you do)? I have already done that but I want to know how you guys are doing it.

Thanks for the help!

1. you need a thermometer to tell if it is overheating, they make handheld ones for about $20
2. can you reword the brake issue, its a bit confusing to me, are you saying that if you give it 100% throttle is rolls easier than when its at neutral?
3. i wrote this guide for inexperienced people who want to learn like you, please read it multiple times to get the idea of things http://www.rcuniverse.com/forum/m_5517128/tm.htm also, there is an FAQ guide on the 2nd page, read that too

Brake problem-at 100% throttle it rolls a bit harder than when its at neutral.
Thanks for the guide, will read it.

what do you mean it rolls a bit harder.....its harder to push?

Yes, it's harder to push (Sorry, I just used the 'phrase'-thought it means...well forget it)

you should probably take apart the brake assembly and compare it to the manual, check and see if things are worn down, and then when you put it back together, adjust the linkage so at neutral its free to roll (same with 100% throttle) and that full brake it grabs really hard