Better option would be to upgrade plastic motor mount to metal one,

Metal motor mount for funjet ultra..
http://www.horizonhobby.com/products/motor-mount-w-screws-funjet-ultra-MPU332606
http://www.rcplanet.com/Multiplex_Screws_p/mpum332606.htm
http://www.brchobbies.co.uk/catalog/product_info.php?manufacturers_id=18&products_id=795
http://www.rcgroups.com/forums/showthread.php?t=1404566

Am also thinking on this..but costs approx. 16 dollers plus shipping  .
Not sure wether available locally.

I havent used washer..i think the problem is with the prop adapter..when I bench tested it with prop it was working..maybe there is a slight bend with the adapter..that causes it to wobble at higher rpm..maybe ill post a video

I personally felt  JY prop adapter better than JJ prop adapter for this. Was not happy When i first fixed prop with JJ adapter, which has one grub screw to tighten on to motor shaft..but things got better when changed to JY type which squeezes from all sides when tightened.

Hi Guru-smg,

I need some advise on Funjet Ultra.

I fly helis. Currently fly a Trex Dominator 450L 6S.
I can do basic sport flying on my 450L - circuits, figure 8s, hovering in all orientations (upright). Take off, land and fly in Idle up mode.

I wish to start flying planes, have no experience flying RC planes yet.

Do you think I could fly this plane ?

Appreciate your advice

Thanks

P.S. - watched your flight vids and liked them ! Especially the way you have tamed it in vid 1 for a slow circuit and then unleashed all the power in no.3 !