is your stock plug socket about 7 or 8 inches tall? 17.8cm-20.3cm since I see your in a metric country :P ====I am a auto mechanic=====ITS THE TOOL not the user----------I can loosen the plug-----but the plug is so tall the you cannot remove the plug from the bike======I am going to get a spark plug wire boot from a dodge caravan====it should allow me to finish removing the plug once the socket breaks it loose======

 

Riding out to the twisty spot today, it was stuttering like crazy. Riding back it was smooth. I even pulled over and waited. Tried some wheelies in a parking lot...still smooth all the way home.

I have no idea.

Mechanical issues usually happen all the time and are somewhat predictable. Electronic issues happen whenever they want and are totally unpredictable. I really really don't think it's the carb. I'll take the bike in after I pick up my girls new bike....gonna be a good week!