I have a Lincoln Vantage 300 with the Kubota engine. I really like the welder,but I wish it would rev up like the old SA-200's I used to run. They would almost instantly be at high idle when striking an arc,thus having the necessary heat/amperage right now. My diesel engine driven welder is not like that,it takes maybe about a second to be at high idle,thus a cold arc for that short time,sometimes resulting in porosity. Are all diesel engine driven welders like this? Thanks for any input.