Check out your throttle trim, with it wanting to take off when you start it sounds like it's advanced. Make sure it's in the middle. Also, how is your carb opening, is it at 1mm?

I just had to order 02013 for my bro-in-law ... you can get them from either AllAboutFunHobbies.com or ClermontMotorsports.com. I'm not sure which other brand that your LHS may have that will work.