OS 91 Pump

[tholzing]

Guys, got my OS91 for my TREX 700. Just read the manual, and it shows two different set-ups for plumbing. Difference is the governor. The manual says, when a governor is used it is NOT ! neccessary to have a pressurized fuel system - means no connection between silencer and tank.
Does this really work - or is it better to have the tank preasured ?
:confused:

[Tomas Ahl]

Sounds strange to me too. I went and checked the manual to make sure you had read it correctly... Sorry for doubting you.

I run my 91SX-H CSpec PS with a pressurized tank and it runs very nicely that way. The CSpec PS manual does not mention that kind of plumbing for that matter...

I say pressurize it!

[Airboss]

use the pipe preassure set up !