Time to do the motor mount and fuel cut off and other plumbing.

Needed to grind away a little of the epoxy ridge where the needle valve assembly is for the motor mount to sit flush (Jett Motor Mount with integrated remote needle. Plane comes with firewall drilled for this with blind nuts installed (well one thing that builder missed was putting in blind nuts but that just took a few minutes to do)).

I use the Sullivan 3/32 which is a popular choice. Large enough for necessary flow but small/flexible enough for easy fuel cutoff.

Lots of fuel cutoff threads and way to skin this cat.

I went with a the basic "U" approach using .048 music wire.

Initially went with 85mg which worked okay. Servo having only two mounting screws lead to a lot of twisting so pulled it out and stepped up to a 225mg and that handles well.

Setting up cutoff so that the servo arm is in the position shown when in cutoff position minimizes stress on the servo.

Note that the first picture showing the mount and the plumbing has the feed line from tank coming throught the firewall. Seemed all nice and clean and I wondered why others routed in more convoluted way until later I realized I would not be able to refuel without removing the cowl or cutting a pretty big hole in the cowl so I could pull the line out to refuel.

Last pictures show final routing using a 90 degree fitting.