I had a GP1200 and it had well over 200 hours with the oil injection system. Never had a problem. And best part of all is that it literally sipped oil. The oil level took a long time to drop. If I had been running premix I would have been using at least twice the oil for nothing. Personally I don't know why people go back to premix, it's like going backwards 20+ years in technology. :dunno:I recently perchased a GP 1200 that was modified for premix and I am greatly bothered by the amount of smoke that it puts out. I was told buy the gentelman that I purchased it from that the mod was due to an engine failure because of the injection system. I hear both pro and con opinions for premix and and am on the fence about it. Is the oil injection as problematic as I hear? Can running it that rich be good for the intake? Enviromentaly, I am very tempted to go back to the injection pump. Any real world advice?
I was looking into this as well. A local performance oriented shop had a kit that they'd install that replaced hoses and clips used to secure hoses. He said some of the "oil pump" failures are not the pump but the lines.Is the oil injection as problematic as I hear?