Originally Posted by Teeeeeemu
My DR wont shift to 2nd or any higher gear, only 1st and neutral. Does anybody know what could cause this? Otherwise it works just like it should, no extra sounds or anything. Going between 1st and neutral works normally. Up from neutral, nothing happens
Like MrPulldown said, it's most likely your shift drum bolt. It tends to back out over time. Lay your bike down on it's left side so all the oil runs to the opposite side of the engine (or you can drain the oil). Remove the clutch cover. Remove the clutch. The bolt in the picture with the red arrow has probably backed itself out. Remove it, clean the oil off, add some locktite red, and reinstall it.
If you want to get even fancier, remove the components and send them to Jesse at http://www.kientech.com/
and he will machine them out to accept a larger bolt.