In a Yellow F-18 single with an OS .91vrdf I'm looking for a good way to adjust the needle valve without removing the engine cap. Any thoughts on this, thanks,
Dave.

Buy a remote needle valve or even better and inflight adjustable valve. Heaps of places have them, all mine are from BVM, on BVM engines, but I understand the BVM units work well with an OS91.

Dave,
I have a good solution.....Jetcat P-80

D luce:
good advice. exactly what I thought on my maiden ducted fan flight.

Most os91 come with remote needle valve. It is so easy to set up..

Wish I had one Donny. I would've went diving for that tadpole home you had, Dave.

Dave,

When your ready, bring it out to the feild, one of us guys can give you a hand setting it up..If we remember how to tinker with those old contraptions...

Kev

Dave
If your sure the motor is bolted on tight, just fly the dang thing and quit ***** footing around.
Good Luck
Scott

Dave,
I think you should get rid of all that big paint shaken, bolt loosening, wheel falling off airplanes, and fly jets with us. I think Brant will buy all that big stuff. He needs more planes to hall to the field now that he has a 20 foot trailer. After all he does have the HAWK.......

Is that the 2003 POS Hawk...???