If you cleaned the variator and rollers, NO lubrication should be done to the rollers. The black powder you saw was from normal belt wear. You also may see where the belt has rubbed on the case during belt slap.. Again this too is normal. I usually clean things up with spray brake cleaner because it does not leave a residue. Are any of the fins on the variator broken off? I can't see all of the fins from your pics, so if any of the fins on the variator are broken off then it will be out of balance and will cause vibration. If that is the case then you would be well advised to get a new outer pulley drive face. Are the rollers in the correct ramps? The black ones should be in the ramps stamped/labeled with "BL" From what I see of your clutch bell, (the thing with the 4 oval holes than turns if you spin the rear wheel) outwardly it looks fine. Some clutches when they get very hot will get "bluing" from excessive heat. Maybe from riding long hard up hills and/or while carrying extra weight like heavy rider/passenger lots of cargo loaded etc. Honestly I've never heard of anyone ever replacing the bell unless it was rusted inside. But your bike has less than 5000 miles....Really there shouldn't be anything wrong with it. Typically if a low miles bike has sat around unused very much then the problems usually come from the carburetor being gummed up or gas starved because of a clogged fuel filter from rust forming in the tank. And some parts may need to be changed because of age. like tires; especially if those are the installed originals which would be way past 6 years in age. The new belt should have made things improve though you may have noticed some belt squeal. This is normal with a new belt and will fade away eventually as the belt wears in a little. The K-mod is going to have you running higher RPMs so it will be noisier because of that. Really it >sounds< like a clutch issue if the vibration is only happening on initial acceleration. But it could be a loose, out of balance wheel, worn tire, loose motor mount, sticking brake. >===== My lament: Wished I could test ride it..... that's the tough thing about describing in print from somebody who doesn't know for sure if what they are experiencing is normal or not. Makes it tough for those that DO know to help effectively. =====< You should get a service manual that covers 2001 - 2003. It has all the specifications, torque values, all system diagrams (cooling, electrical, lubrication, hydraulic brake system etc) step by step procedures for repairs and on and on. It will help answer many questions you may encounter during your ownership on servicing and repair. But the groups and forums are great for quick answers and tips on how to do things that are not specifically explained in the service manual. Indeed, the yahoo groups is an active and very informative site for Reflex owners. If you go there be advised to see if you can find what info you need by first looking in the "Files" section. https://groups.yahoo.com/neo/groups/hondareflexowners/info The longer you live with this bike and learn its ways, the easier it becomes. It's a good bike... don't give up on it.