Hey GH! l am looking for some help here. My ski starts fine and has no error codes. New plugs were installed and compression is at 115 on #1 and 112 on #2 and 3. I checked and have full spark but at 4k RPM the ski studders and pops a bit. Anything over 4k rpm the ski runs smooth but only gets up to 71 km ( can't get it to switch to mph). I just got the ski a month a ago and it was running fine. The only mod I have is a D Plate and Chip. Is there a way to check for proper fuel flow in these? I hear the power valves cycle when I turn it off so I assume they are working. Anyone ever had this issue? The ski has 95 hrs on it. Thoughts?