Hi i HOPE I am doing this right i have never participated in forums before. I have a 2013 honda pcx 150 I just bought new had one mile on it when i drove it home. When I run full throttle it tops out around 65 70 but will only run this way for about 20 30 seconds then it starts getting sluggish like its missing a little. If I let off the throttle before it does this i mean let off just a little for three seconds or so i can return to full throttle again and run it for about 15 seconds before letting off again to return to full throttle again. If I keep letting off then go again it will do this all day long no problem but if run fulll throttle till it gets sluggish it falls to about 55 or 53 miles per and will run this way until i shut down the engine for a minute or so then will run as described above. seems like its building to much internal pressure or something. i dunno. Anyone have any ideas about this?