I have been planning to get the suspension re-valved on my 09, and at the same time re-grease all the chassis bearings because it's never been done before. Bike has 50 hours, so are the bearings something that MUST be done before my next ride, or would it be ok to wait another couple rides? I haven't noticed any signs that it needs to be done now, besides just a little dust buildup below the steering stem. When I grease these bearings, is it ok to use a (new) hand bearing packer? or is it better to do it by hand?