Hello.

Im about to buy an GMS 1.20 engine to replace my ASP 91 in my CG Ultimate 10-300, but i have a few questions:

- They are difficulty to ajust ?
- What about the break-in before flying?
- They run just like an 2 stroke 120 or is just bull**** and they are not strong?
- They have those inside explosion boxes in the engine's wall?


i heard about some problems in GMS engines like air-leaks, those problems anyone here found in the 120 ?

thanks for your help.

DanieL