OS 91 FS SURPASS
I recently bought a used OS 91 FS SURPASS. I fired it up, adjusted the needle for a ritch setting,took off and found the engine was too ritch so I landed turned it in about 1/8 turn and took off again. Flew about 15 min. the engine was perfect did some spins, loops, rolls stall turns and 4 touch and go,s I lowered the idel 2 clicks and landed. As i approached the engine was at low idel and quit just before landing. I felt I had just brought the idel too low. A few minutes later after refueling I found the engine had no compression. I pulled the valve cover and found the intake valve spring completely collapsed. My question is, How do i get the valve spring retainer off? HELP....
Thanks, Jim