Nitro help

Question

every time i start it it runs good on idle but i give it gas it dies i did a moter rebuld and im trying to tune it if that helps any help would be good

Answer 1

If you think the fuel mixture is good then it could be a leak in the carb or fuel lining. Let the engine warm up on idle before quickly accelerating it. An overly richened engine will turn off if accelerated too quickly.  Try starting the engine without the air filter and see if that makes a difference.  Did you get water in the engine or something? how many gallons did you run through it?