I have been flying my Twist with an Evolution 46 for a while and both do just fine. I thought I would install a spinner (2 1/4) as noted in the manual. I like to try different setups. When fitting the spinner back plate the flywheel portion of the engine drive washer touches the nut portion of the back plate. Therefore keeping the spline portion of the engine drive washer from mating with the spinner back plate spline. It fits loose.
This does not look right and should be corrected.
Solution seems to be removing the flywheel portion.
1. Has anybody run the Evo 46 without the flywheel? Any difference? Concerns?
2. If ok to remove the flywheel -- what is best method to remove the flywheel?
A. Just knock it off the drive washer? If so which way to knock it out?
B. Is heat required to remove the flywheel?
C. Other methods, solutions?

Thanks,

There are spinners out there that work. You have to get one that is perfectly flat on the back (except, of course, for the knurling). No ridges or nuts can be poking out the back of the backplate, or it will interfere with the backplate seating against the drive washer (flywheel). If you're talking about removing the weighted ring from around the drive washer--I don't know if that is possible or not. I know people run these engines without the flywheel, but I'm not so sure that they just don't go and buy a new drive washer--the one for the evolution .46 (non-trainer system) will work on it, I'm pretty sure. On my evo, the flywheel and drive wahsher are one--and it fits over a flattened area on the driveshaft--just like a drive washer would. You can just pull it off by hand real easily. I don't know if the outter portion of the flywheel will come off or not--I assumed that it was all cast together, but maybe not. I know lots of people run them without flywheels, so let's wait and see what they have to say........

Maybe I'll learn something here to.

You need this [link=http://www.horizonhobby.com/Search/Default.aspx?SearchTerm=evo100219&OverallCatID=]prop driver[/link].

I just noticed they are out of stock till mid May.

If you got the Evo TPS, you should have gotten that prop driver with the engine, just swap it fot the one with the weighted hub.

Or - Get another spinner with a flat backplate