RE: 90 lx?
Sorry to bring this old post back up, but this fits like a glove to my problem:
I got a "NIB" Jett 90 XL from another guy, and asked the help of some guys that have more experience then me (I'm more costumed to heli engines)
to break it in. I read the breaking-in on jett's website, and so told the guys that the engine was supposed to be turning at least
13k rpm on the 11x6 APC to break in. The first tank I convinced them to do that, but I really thought that the engine was getting really hot to the touch,
I could not keep my hand on the head for even a second, and even the back plate was very hot, so they convinced me to run a couple more tanks
at about 10k rpm, and pinched the fuel line to the needle every couple seconds to make the rpm jump to around 14k. Now reading this I'm worried I might have
damaged the engine?
Can you guys help me out on what I should do? Tks guys!
EDIT: using wildcat helimix 15%nitro 18% synthetic, and the needle was never less then 6 turns from closed