A term usually meaning a nice, slow idle. "Ticking over" means idling.

So improve idling? Well OK acetone does nothing for that, it actually makes the needle more sensitive. Nitro makes the needle less sensitive, but once adjusted right a 0% nitro fuel engine will "tick over" just as nicely.

Yes I will run this engine for a few flights and then tear it apart to have a look. I haven't been out flying lately due to crappy weather and other life commitments.
I used 15% turbine oil and 2% castor oil.
I did not think the needles were more sensitive with this fuel. We adjusted the low speed needle an 1/8 of a turn at a time just like we did with the 10% nitro fuel and the high speed till the engine leaned out and slowed down and then we richened it up a bit to our liking.
The compression is raised in the engine, but I cannot tell you by how much because I do not know. I had the head machined so the squish band was .010" from the piston at TDC instead of the stock .016"
Everything I read pointed towards acetone helping with the idle, that's why I used it, but according to what I read it does nothing for the top end.

Mark

how does it smell... like burned A1?

It's funny you should ask that question because this fuel has a real distinct smell to it in the jug and cleaning the excess off the plane after a flight. If you open a box of band aids the smell you get from inside the box is what the spent oil smells like when I am cleaning off the plane.
The fuel in the jug has a strong odour to it, but it doesnt remind me of anything like the spent oil does.

Mark

is there any way to make normal 5% mix smell like burned A1? i love that smell lol

You can buy fuel-scent in lots of different "flavors" (grape, vanilla, cherry, etc) and I always wondered why they didn't do a "castor" or "Jet-A1" scent.

cool [8D]
thanks...