2001 Honda VT 750 CD Shadow rubbing sound coming from rear wheel

SOURCE: how do I adjust the rear tire on a 97 honda cbr 600f3

40mm slack up and down middle of chain. not tight when sitting on bike. loosen axle ajust both sides evenly, retighten axle install new split pin

SOURCE: drive chain goes loose and tight on back wheel turn

No.That was the problem.The chain and the sprockets needed to be renewed.
When you will take, the rear sprocket's base, off the axle check it's bearing.Just put your finger in and turn it slowly to see if it "locks" instantly.It will be nice if you renew it now that you disassembling the chain drive system.

SOURCE: new chain gets loose fast.

A worn set of sprockets will kill a a new chain in short order - particularly a worn countershaft sprocket.
The issue is that, with a worn sprocket, all the force is on only one roller at a time.
Overtightening a chain will kill it in short order as well.
The issue is that chain tension changes as your rear wheel goes up and down (the swingarm pivot and countershaft sprocket are not concentric so the distance between the sprockets changes as the wheel position changes. Typically, you want to be able to move the midsection of the chain up and down 1.5" to 1" after adjustment.
If the rear wheel is out of line, that will also kill a chain, but it will take longer - and your bike will not handle that great.
Finally, are you [i]sure[/i] it's the chain? You may have simply failed to tighten the axle nut sufficiently and the axle has moved forward (and is probably angled out of line as well)

SOURCE: could you please tell me

70 ft lbs

SOURCE: What type of chain and sproket does a 2000 Honda

The stock gearing is 17T sprocket front and rear is 41T sprocket. Chain size is a 525/122. Hope this helps you out
D.

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