Is it time for a new battery or should I check something else?
The battery isn't yet 2 years old.
It will charge up just fine, if I run the bike everyday it's fine, but for instance I charged the battery on Thursday night. Then road the bike around on Friday morning. Parked it. Left for the weekend, I went to fire up the bike this morning and there is enough juice for the electrics to kick on, but not enough to turn the engine over.
Also, I keep getting a build of that white junk on the negative terminal.

The battery isn't yet 2 years old.
It will charge up just fine, if I run the bike everyday it's fine, but for instance I charged the battery on Thursday night. Then road the bike around on Friday morning. Parked it. Left for the weekend, I went to fire up the bike this morning and there is enough juice for the electrics to kick on, but not enough to turn the engine over.
Also, I keep getting a build of that white junk on the negative terminal.