I didn't until just now. The photos pretty much show what you can see from the right side. I did pull the bracket off that holds the throttle cable, and removed the wheel the cable attaches to. The left side has some sensors that I did not remove, but they don't look like there's room to have an adjustment screw under them.
I was riding it yesterday without a helmet and ear plugs (I'm in Mexico riding around a small town) and could hear the tinkle of spark ping. It's not a knock, and it's for sure not detonation (very destructive). The kpx is the first vehicle I've had with efi on an air cooled engine, so it could be normal. Still don't like the plug color.
My V6 ford van has spark ping when you start to load the engine (starting up a hill). Efi in cars with knock sensors advance the ignition until there is a knock, keeping the ignition as advanced as it can be. Seems to work with liquid cooled engines for a few hundred thousand miles...
Right side
Left side
