Flooding
 

Here is the situation: New OS 25 FX engine on a test stand in upright position. Tank has a good seal, clunk and vent line properly installed and hooked up. Tank midline is even with the needle valve. Needle valve closed then opened 1 1/2 turns. Prime the engine, connect glow starter, flip it a few times and the carb fills up with fuel and runs out the carb opening. Any suggestions appreciated.

RE: Flooding
 

try not priming it. if it floods fast, your needle is too rich. it is possible, however that your low end may be too rich as well. i assume you are trying to start it at low throttle, correct?

RE: Flooding
 

I am trying to start it at a little above idle. How do I tell if the low end is too rich if it isn't running? Thanks

RE: Flooding
 

how many turns out is your low end?

RE: Flooding
 

I found the prob. The gas tank had to be moved down lower. Cranked up fine. Im on the third break in tank on the stand now. Runs great. Thanks.

RE: Flooding
 

but didn't you say that the tank's centerline was lined up with the needle? if it was you shouldn't haveto move it down and you have a different problem. you shouldn't haveto do that.