Hi Everyone! This is my first post on TT so hopefully I can be clear and concise to help get pertinent info across to solve my issues.
I have a 2012 WR450F that I bought new less than 2 years ago. I have appox. 100 hours on the bike.
Just a few weeks ago my bike began blowing blue smoke when I rev the throttle and has a ticking/knocking noise that seems to match the rate of the piston.
I decided to pull it apart and found that a few things that seemed odd for a bike this new:
1. The intake valves are oily and have a lot of carbon build-up.
2. The top of the cylinder wall is slightly scuffed on two of the sides.
I also have a 2008 YZ450F that has had no engine problems and has been ridden hard, so these issues seemed premature to me. The only modifications I have done to the bike is the green sticker un-corking and an FMF Q4 slip-on muffler. I had my fuel and ignition mapping adjusted in January of this year. The technician that helped me set most of the numbers on the chart +1 above the recommended for my setup. I have attached a picture of the chart with my settings vs. recommended. Seems too moderate of an adjustment to cause these issues, but it is the only thing I can think of at this point.