To work off of that last answer for Irgo, I have an open question for you guys.
How many of you replace your bearings in your motor and why? Is it a bad bearing, or just "freshing" up your motor?
I ask because I run motors all the time, and I have a 13.5 well over a year old and I have never had a bearing issue, hell I've never done anything but hit it with the air compressor and a drop of oil every 6 months and it runs like it was brand new.