Hey man. I would get back to the basics. Replace the fuel tubing, glow plug, and reset the needles. Remember, these engines need 3 things. Ignition (spark), fuel, and air. Cover those bases first. Like I said, clean your airfilter, put on new fuel tubing, and replace the glow plug.
GET rid of the peice of junk. i had one too and it is the biggest peice of crap i ever owned. all it ever did was have problems and i spent like 200 dollers fixing it till i finaly sold the peice of crap. haha
Like I said in Nitro Addicts request on what to do to make RCU a better place, I said ban everyone that replies like this. I guess it would have worked here eh?