trx 3.3 engine problem help please?

[gregk20]

i have traxxas trx 3.3 and if i blow in the hose that conncects to the exhaust to prime the carb it cranks right up and if i keep on throttle kinda hard it will run for few seconds but if i let off it is like it is not staying primed or is flooding out. I have tried using the factory carb specs and it did not make a difference. it does not have any air leaks that i can find if i blow in any of the hoses it primes the carb so i dont believe it has any leaks.. any suggestions? thanks

[Traxxas_Junkee]

Have you put a new plug in it? How old is the fuel you're running?