I own a 96 fireblade
Ok, clutch slip,would not be noticable when you back off the throttle so mutch, you would mainly notice slip when accelarating as the engine speed would increase but not your actual speed, as if you hadn,t let go of the clutch fullyIs the noise noticable through all the gears? Does. The bike jurke when the noise is present?If it does i would check these items externaly.The condition of the drive chain, rotate the wheel and check for missing rolers from the chain links, remove front sprocket cover, and observe the sprocket for broken or missing teeth. Also check if the sprocket has exsess play as if the bolt were loose, if so remove and check shaft condition for dammaged splines, next look at the rear sprocket for broken or worn teeth, missalignment and tension, all fixing bolts, next grab the sprocket firmly top and bottom pull to and fro as if you were pulling from the outer and not in a rotation , you are now looking to see if the bearing in the carrier on the rear wheel has failed any exses movment would mean replacing the bearing, this would contribute to vibration, if this is ok press the chain downwards check to se if the engine moves, sometimes engine bolts become loose and vibration would again be evident, check engine subframe for damage cracking etc. Vibration can also derive from front and rear wheel bearings giving a visible vibration in footrests and handlebars in extreme cases, good luck my bet is chain and sprocket, poss carrier bearing, paul
