Hi Guys,
I bought a YS91AC about 8 years ago to put in a 4 star 60 I was going to build. I was new to the hobby and learning to fly a PT 40. The four star was going to be my second airplane after I learned on the trainer. To make a long story short 8 years later I am about to finish my four star. My question is this, my 91AC is still brand new sitting in the box it came in 8 years ago. Do you think it is still good to go? Can any parts go bad sitting for so long?

Thanks---

P. S. Still have my PT 40 to Learn on. Cleaned all the dust off and it started right up!