Hi,
Your posted question is very close to one I have recently posted. If you have received replies that would also help solve my question or if your experience has provided you more knowledge I would GREATLY appreciate your help. Seems most are willing to help beginners in the RC hobby. Thanks in advance for any help you may offer. Here's my posted message....

How Do I Fuel Up?

I am new to RC. Have a trainer with an OS 40 engine. I am ready to run in the engine before going to the field to find an experienced wizard to help get me flying and want to have all the non-flying things understood so I can spend field time learning to fly.
Of all the info available I have found nothing that clearly explains how to fill the tank. Would like to use and understand the setup I have before going to more efficient/faster methods. Have a hand crank pump and a set of fuel can fittings (Great Planes).
Jug & fittings
The fuel pickup line with clunk/filter is installed into one of the two holes drilled into the jug cap....that's simple.
A fitting is installed into the second cap hole. Is this fitting an open vent used during pumping from the jug? I assume the fuel probe (has a small "O" ring) is connected to the fuelup point to fill the plane's tank then place back into that fitting during de-fueling and to keep the jug sealed from air. Am I wrong?
Filling the Tank
I have two lines from the tank...fuel line with clunk and pressure line from muffler. The fuel inlet (just before the needle valve) is a tedious reach to be disconnecting for each fuelup. Do I have to fill there? If the fill is done anywhere after the needle valve I assume the needle valve has to be opened to allow fuel to flow past to get into the tank. The line between the outlet and the carb is easily accessible. I understand that flooding fuel into the muffler isn't good but can filling the tank from the pressure line be done?

I understand this is probably a no-brainer for experienced folks but I have read and understood all instructions and tips of just about every other aspect of beginning RC airplanes. Of the many sites and articles I have read I have found none that explain the ABC's of the actual process of fueling and defueling the airplane using this basic equipment on a trainer model. Any help from anyone is GREATLY appreciated.
Jim
[email protected]

__________________