hey guys

so i still have not taken my Tiger Trainer 40 for its maiden flight yet , but will let my fellow RC'ers know when i eventually work up the courage to do so !!!

anyways ...

So i gave the engine a start today after installing my servos and new reciever and what not , and i wasnt happy with the outcome ....
about 2 weeks ago when i started her up , she ran beautifly .... idle was great, power was great , all was well , and now today when i started her up , it vibrated alot when the throttle was almost closed and on idle , i and i could only get it to stay running if i pushed the throttle past the point of idle where the prop actually starts to pull the airplane !!!! , if i took it any lower ... it would sound as though it was mis-firing and enevtually just die out , then i have to re-prime it , t get it started again

the fuel is fresh , the engine is clean , the tank was raised , the glow plug was new , the glow starter was fully charged and i was constantly adjusting mixtures ..... i cant seem to find what the problem is ,,,,
please help me !!!!

any advice is welcome ,,,, !!!!!

thanks in advance!!