nothing is being done to the motor mechanically, other than a clean up, paint and polish... engine will be black with all covers polished
RicoChet; That is one BEAUTIFUL CB900F. One of my all-time favourite CB's. Well done. Hang on to her, these will sky-rocket in value over the next few years.
The forks need to come off. 15-20 minutes of work. I would wait until you need to replace the tires or pads.
I have a shop manual for a CB750, but not for the CB900, so I cannot advise on the exact procedure for a fork spring change.
I'm sure somebody else will chime in with advice. BTW, I would carefully peel that ridiculous sticker off the tail.
I am still looking to meet other CB900/CB1100 owners who are in the area who can help familiarize me with some of its regular maintenance needs...
Don't want to scare you, but I remember that bike had pretty bad rep for propensity to drop out of gear and/or brake con rods. By all means do some research and connect to other owners/boards to find out what the problems were and how to prevent them from occurring.
I'm not scared, if that bike busts up that bad I would just sell it out for parts....
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Also, I ride my bikes like a grandpa, they are pampered a little too much.. Rarely hit even half the RPM range they are capable of. Yeah I know LOL