I have a 2002 Yamaha HPDI Vmax 200. I took out the spark plugs the other day to clean them up, and there was no oil fouling or carbon buildup on the electrodes at all. Usually, I have some oil buildup and carbon that I can clean up, but not this time. I assume this is good, but I'm not sure since they have never looked like this before. They look almost too clean, and the electrodes almost seemed dry, barely wet, and looked almost shiny. The white porceline in the middle was not brown at all, it was actually more of an off white. These plugs are not brand new. I put these in probably back in October/November, but I have been using my boat all winter long fishing rivers that don't freeze up here. So, these plugs have a good amount of use under them. When the plugs were changed, it was after I had the low pressure fuel pumps replaced, mechanics did the sync and link update, and the oil pump setting was checked. So all that is up to par as far as I know. The motor seems to be running ok, just as idle feels like the plugs might have been fouled which is why I checked them out. Does the way I described how the plugs look sound right? All 6 of them looked like this too.