I got the engine back a couple weeks ago and finally got time to run it yesterday, it was a huge difference. I ran 3 tanks through it first 2 at about 4k rpm then gradually through 2 more tanks brought it up to full rpm for a short while, I am getting 9k on the same 18x6w apc with the needle set at 2.5 turns out. Engine stays cool, I will fly it tomorrow.

Thanks to YS repair center for a great job. They changed the piston and liner,all gaskets and diaphram, front and rear bearings.
The service was great and very fast.


Thanks
Jeff