new to this post. lots of good info. been welding for many years mainly on the farm. for those just beginning or learning sign up at your local vo-tech school you will be ahead. i did after about 7years of teaching myself the wrong way. my question is about a new 225 bobcat. when using power plant only, does the engine rev to full throttle or should rpms stay low depending on load. i had a bluestar that you had to throw switches to weld and then throw them back for power. this machine would only rev up a little from idle when power plant was used. any feed back wquld be appeciated