I am new to this forum. I owned an '02 R1150R which carboned up so bad, it got a new top end at 6k miles(totaled at 9k miles). When my '03 GS started pinging at 8k miles, I ran Redline FI cleaner and Techron through it( about 400 miles worth) before it went away. I've run a bottle of Techron a couple of times since, but now with 13k miles, it's pinging again. I've read all the threads on here concerning this, but there really doesn't seem to be a consensus about what REALLY works long term. Any thoughts?