praaa
New member
I just got up a 2010 M8 HCR with 3,000 miles on (know the guy who put 1,500 of them on it). It seems to have a flutter where it doesn't get full power once in a while. Sometimes more noticeable than others. It doesn't bog or die but you can tell there is a bit of loss in power. I have cleaned the power valves, replaced the plugs and ran some Sea Foam through the fuel. Not sure if the power valves are out of adjustment. How can you tell this or how do you set them?