I changed the oil in my bike today used Syn3, and went out for a short ride, about 150 miiles. I can pick up a hint of gas in the oil still. It could be residual from before the oil change added to any new gas making its way into the oil. I think it is related to a richer mixture of the TFI unit. Even though its only setting at the 2:30 position it still might need to be backed off a bit more. I am out of answers. I know I didnt have any problems with stock pipes and pre TFI install, back when the bike was running lean from the factory. I think I will take the top off to allow more air in, and give techlusions a call. The last time I called them on this issue they said it was common to see this in the VRod with a TFI installed. I asked them what to do. They said nothing, that the bike was running much better, not surging, and responding as soon as you touched the throttle. It practically jumps up in the air when you take it up around 5K and nail it. This bike has great power, just the gas smell bothers me some. I guess I can get an analysis after 500 miles or so and see what the levels are of gas in the oil. Its just a mystery because in my older days of carbs (what I am used to working on) if they werent dialed in great one could tell, especially if you know your own bike. I could tune all my older harleys with carbs, have even thought about switching back to a carb on this damn bike...LOL..Just kidding. I hate to think of a leaky fuel injector, I prefer to think its gas seeping around rings that havent seated yet. It took about 1000-1500 miles before my 88B twin cam was broken in well by analysis. Who knows, Im a pharmacist that tinkers on his own bikes...Not an expert on bikes by any means, but I love to do my own work if possible.