Hello im new to this forum and need some help with my HellFire. I have had my car for about a year now and have only ran it off and on for about two months. I've just taken it out of storage and I've been having some idling and running problems. All my adjustment screws on engine are flush (back to factory settings). I am running a OS R5 glow plug, I have replaced the one-way bearing and in doing so I don't know if I have damaged the piston in anyway. Last but not least there is some nitro gas coming out of the exhaust.

The problem is that when it starts it:
-cuts right off
-runs for awhile then slowly loses throttle then shuts off
-or when I add throttle it lugs around

I just need some help, thanx for anyone who responds

Did you had old fuel in the tank ???

No I didn't use it but it stayed in the tank.