Advice from a Mercedes Tech
I recently purchase a 2011 Adv 990R from a Mercedes Tech.
He loved the bike but just had some financial issues to take are of.
He said NEVER leave the key in the ignition if you disconnect the battery or when connecting to a battery tender.
He said it can mess up the chip in the key and then your stuck.
2014 KTM 690
2011 KTM Adv 990R (sold)
KTM 500 exc
Sherco 290 ST