Motorcycle Repair: 95 roadking whine, clutch basket, roadking

Question
QUESTION: have a 95 hd roadking.i get a whine from primary side of bike on decel from 40 and above.checked adjustment of belt and chain and within specs.oil levels correct.no whine on acceleration. whine goes away if i pull clutch lever in

ANSWER: Take the bike for a ride and get it up past where the whine is and shut the bike off and coast in netural. Do you still hear it?
Mike

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QUESTION: yes still hear it.pull the clutch lever and it goes away,let it out and its back. if you down from 5 to 4th its considerable louder,because thr transmission is rotaying faster

Answer
I would start by changing the fluids in the primary and trans and see if that doenst help. If you still have the noise then I would check the clutch basket nut for tightness. If that is not the problem then you will have to inspect the trans for a bearing going out
Good luck and happy riding
Mike