Bearing Whine

[old son]

I have what I believe is bearing whine from the engine. Only noticeable when the throttle is open. Close the throttle and it seems to disappear. It is probably whining when I accelerate but I don't hear it due to wind and exhaust noise. Aside of a major engine strip, is there anything I can do to quieten it down? Will the bike remain reliable?  The bike is showing 84k miles but still rides and pulls well.

[sirgalahad3]

Check chain tension carefully. Sounds like its too tight.

[old son]

If anything chain is too loose!!

[sirgalahad3]

Perhaps it that then!!! Lol

[unfazed]

Chain should have 2inches of play while on the centre stand

[old son]

It has 2 inches plus a very little bit so not tight

[Neon Knight]

I have a whining bear, probably because he's white and I make him eat kebabs not fish. Weird ? 

[Mcgroital]

Hi Old Son, I have the same issue - I think!. The bike has been laid up for 5years, chain is rusted, and a few seals have busted. Its in for new chain and sprockets this thursday.

B

[old son]

A new chain and sprockets has not helped mine. The whine is still there.  We are going to do an engine strip and change the bearings.