29-08-16, 06:19 AM
Since you have the rear end stripped out it makes sense to check ALL the bearings & seals-swingarm/suspension linkage/wheel bearings/cush drive rubbers.
Yamaha were never generous with grease in these bearings & being "out of sight" & "in the line of fire" from road shit/wet/salt etc tend to be overlooked until bike develop symptoms like you describe. When you are putting nigh on 140bhp through drivetrain onto road you need to make sure there is no excess play/wear & that caged rollers are free to do their job. Eventually you may want to replace rear shock as at 13 years old it will be well past its best.
The FZS 1000 is an amazing bike-wish i still had mine!
Yamaha were never generous with grease in these bearings & being "out of sight" & "in the line of fire" from road shit/wet/salt etc tend to be overlooked until bike develop symptoms like you describe. When you are putting nigh on 140bhp through drivetrain onto road you need to make sure there is no excess play/wear & that caged rollers are free to do their job. Eventually you may want to replace rear shock as at 13 years old it will be well past its best.
The FZS 1000 is an amazing bike-wish i still had mine!