Here is the manual's plumbing instructions. Send me a PMwith an email address and I'll send you a copy of the manual

What the manual doesn't ' show is how to fuel and defuel the engine. You can put a splice in the line from the clunk to the pump and make it accessible outside the cowl. That is the easiest way. Make sure the Vent line is open while running. Make sure you plug it at the end of the day.

There is a pump failure mode on this engine that allows it to start and run, but run rich. When you tune it, it's OK but smoking like crazy, the suddenly it stops. What is happening is the seals on the pump shaft are not initially sealing and you are pumping raw fuel into the crank case and as the vent of the crank goes to the intake manifold, you have a second path for fuel to the engine separate of the carb. I strongly suggest you set the engine up on a test stand and make sure you have a transparent line from the vent to the manifold, and of the right size. Get the engine running and watch the vent line for a bubbly flow of fuel heading up the line to the manifold. You will also see fuel leaking out of the nose bearing.

A permanent fix for this is to replace the little seals in the pump. I haven't located a source yet, but it wouldn't be a hard job. If you need to fix that, PM me and I'll give you as set of instructions and things to watch for.

My engine had this problem. Iwas reading some post here on RCU about another problem with the engine and that was an over rich idle due to excessive pump pressure. The fix for this was to put two T's in theoutput and return lines off the pump and connect them with a smaller diameter line. Igave this a try on my engine and it is working as a fix for the leaky seal also. Something to keep in mind in case you have problems.

Iwasn't able to hook up a choke as the motor mount I was using didn't allow for the pull rod. Ididn't need it though as the engine is one of the fastest starting engines I've seen. You will need a big starter though, one for a large spinner.

Tuning the engine is different in that you find the peak on the high speed and then leave it there. The pump prevents it from leaning out when it unloads in the air. Set it for peak RPMand you are done.

As W8ye said, it is a good strong running engine. You should enjoy it.

Don