They aren't hard bikes to work on, it just takes a bit more time since you have to remove the gas tanks for almost any sort of maintenance. I check my valves every 10k miles, but the 990's have a 15 or 20k interval.
"To strive, to seek, to find, and not to yield."
"You don't cross the mountains, they let you through."
KTM 525 XC-W // KTM 950 Adventure