2008 Sky Redline, 88k miles. Starts right up but is really rough and noisy. I all coilpacks and checked them for continuity and cleaned the plugs - gently! Still noisy and very uneven until somewhat warmed up. As soon as I drive it or rev it up a bit, smoothes right out. Check engine light on and indicates Lean at Idle. Cleaned aftermarket Spectre air filter. ANybody have an idea? I also checked for vacuum leaks. None I can find.