So, I changed my oil a few days ago, and didn't do a long test ride after that, but ran it around the neighborhood and had no issues. Today I go to work, motorcycle is fine when I start out and I don't have any issues, until I park it at my office and try to find neutral. It "clunks" around jumping from first to second gear. Have to work, so I shut it down and go inside. Later, I come back out, put key in, lights on, find neutral instantly. Alright. So I ride home, and I only have a few stops so I don't have much opportunity to go into neutral, but sure enough when I stop to check my mailbox, it won't go again. I turn it off, and it goes into neutral just fine. I start it again and go up my driveway, but when I'm in the garage and it's running, again it won't go into neutral. So basically, it will not go into neutral when running, but fine when it's off. It also only seems to be an issue when the engine has reached operating temperature, but when it's cold, it's fine. The bike ran 100% and shifted 100% before the oil change, my guess is bad oil but it's Castrol SG and JASO MA-2 grade motorcycle oil, in the correct 10w40. Did Castrol package oil that wasn't motorcycle clutch rated?