I have just got a Sirio .27 and I’m busy running it in but as soon as I take the glow starter out the engine cut's off this even happens when I have the wheels running off the ground I never had this problem with my other engines

add a glow plug washer/shim under the glow plug, that means there should be two of them. do this for the first tank or when you feel that the motor is well warmed up and running well. then take out th esecond washer/shim and start tuning your motor. this helps because it leaves more room for the plug to get hot and stay hot, either that or you are running a cold plug, and you should be running a med...unless you have a turbo head, then a turbo plug would be the answer.
Hope all this helps.
Take Care and God Bless

i'm running a 8 glow plug atm i'll add shim as soon as my glow starter's are charged

Sounds like a bad plug, try another one.

both of you are wrong i leaned it up 1/16th and it's fine now


p.s that is one fast engine