I got it home this afternoon and filled the cooling system and it was OK. Might have been drained to prevent winter freeze up.

It didn't come with a propane tank and I got one off Craigslist for $35. I only filled it with 2 gal since I wanted to check and see if the valve leaked. They were OK so I will go back and fill it up.

I did try to start it with the 2 gal. and it would fire but wouldn't keep running, much like a gas engine that is out of gas. So I suspect that the tank pressure it too low. I have never owned or worked on a propane equipment. Just driven then and changed tanks, etc.. This system appears to be complete and as originally installed. It has an IMPCO propane throttle body and the only adjustment that seems likely to be intended for "field adjustments" is the screw towards the top with a large head/slot. It looks like it might have been turned recently with a screw drive and is about 2.5 turns off it's seat. Doesn't seem to effect the way the engine runs while cranking. Again, it seems like not enough fuel getting to the throttle chamber.

Could someone tell me the procedures for adjusting or trouble shooting these propane systems??

Thanks

Steve