Here's what to do:
Put the XXXNT back in the box
Sell it off
Buy a XXXT
JUST JOKING, NITRO GUYS!!
That happened to me when I had my XTM. I guessed it was because it was WAY too rich at factory settings... After break-in, when you lean it out, it starts easily.
Speaking of nitro, I got a Nitro Rusler .15 coming my way from my "brother".... guess I get another shot at it...