[SEL] Hercules tg, idleing

[jbcast at charter.net]

I took the mixer of my 12hp Herc throttle governed this weekend, it was overspeeding, over 300 with the throttle shut down. The butterfly looks to be home made, soldered in. It didn't fit very closed when shut so I worked on it a while and got it to shut fairly tight. I put it together and it ran about 325 on the governor, when throttled down it would die. I took it down and when the throttle was closed it blocked the fuel tube. I drilled a small hole where the tube met the butterfly, I can now slow it down to about 200 rpm s in the slow position. Still a lot faster than I would like, I'll have to work on it some more. What kind of speeds can I expect from an engine like this?
J.B. Castagnos
Belle Rose, LA