My 2.5 runs perfect when i have it at quarter to three quarter throttle but when i punch my 2.5 it cuts out right away, it will shift into 2nd if i dont punch it
thats probly where your problem is. next time you go out and run it, run it in circles or against your foot before you take off. that should tell you if your not warming up and staying warm. do you have a temp gun.