Honda-Forums.com
Home » Bike Specific Discussion and Help » CB600, CB900, CB1000, CB1300 » Newbie from Cumbria
Newbie from Cumbria [message #291393] Wed, 16 September 2015 17:21 Go to next message
john11668 is currently offline  john11668   United Kingdom
Messages: 3
Registered: September 2015
Location: Cumbria
Karma: 0
(1) Club Racer
Hi folks
I am john from Cumbria
My mate is not into IT so I am interpreting.
He has a 1983 CB650 Nighthawk which we believe was imported to UK from the States.
We recently noticed the rear tyre is rubbing the Shaft housing so much so that the sidewall is showing canvas.There is literally no clearance between the two.
There does not seem to be any play on the rear bearing so we are puzzled .
I have seen on another forum a post referring to lack of clearance here. One guy said his tyre was rubbing, he replaced it and the new tyre showed 1/16" to 1/8" clearance so the implication was tyre spread with age or wear.
There was some discussion about shimming to create more gap ( I am dubious about this )

The other thing that springs to mind is a wrong size of tyre which might be a bit close. Will check tonight for correct size which I believe should be 130/90 -16.

Has anyone else experienced this problem?
Any suggestions as to the cause and indeed the solution ?
Thanks in anticipation
Re: Newbie from Cumbria [message #291394 is a reply to message #291393] Wed, 16 September 2015 18:31 Go to previous messageGo to next message
Kakugo is currently offline  Kakugo   Italy
Messages: 7436
Registered: August 2003
Location: Selling Souls at the Side...
Karma: 31
(18) Geoff Duke
Hi and welcome.

Very difficult to give a staisfying answer without seeing the bike in flesh.

A suspicion I have is your bike may be on the wrong tyres: the OE size is 130/90-16. It's not exactly hard to come by but a previous owner may have either found a cheap tyre in a slightly larger size or experimented. A 140/90-16, albeit very similar in nominal size, is made to be installed on a 3.50" rim instead than on a 3" rim as used on the Nighthawk. Fitting such a "fatter" tyre would result in the problem you described, even at very low (parking) speeds.
Re: Newbie from Cumbria [message #291397 is a reply to message #291394] Wed, 16 September 2015 20:44 Go to previous messageGo to next message
slaz is currently offline  slaz   United Kingdom
Messages: 11512
Registered: March 2004
Location: Moved
Karma: 7
(21) Valentino Rossi
Hi and welcome,dont forget when you've got the bike,
A one,pop into General,and talk shite like the rest of us,
unless you "have"a life Laugh Thumbs Up
Re: Newbie from Cumbria [message #291568 is a reply to message #291397] Tue, 29 September 2015 12:20 Go to previous messageGo to next message
gone2 is currently offline  gone2   France
Messages: 5859
Registered: June 2003
Karma: 66
(15) Kenny Roberts
Obviously he has a life. But not as we know it.
Re: Newbie from Cumbria [message #300538 is a reply to message #291568] Sun, 07 April 2019 22:05 Go to previous messageGo to next message
john11668 is currently offline  john11668   United Kingdom
Messages: 3
Registered: September 2015
Location: Cumbria
Karma: 0
(1) Club Racer
Hi Again
Sorry did not come back on this on.
Turned out that tyre had been massively over inflated so new tyre was fine at the right pressure. Bike has now been sold so wonr touble us further.

Meantime I got a BMW K100 which was good enough fun but too heavy for me as I approach 70 so I have recently changed for a CBF 600 SA8 . 2009 model with all the toys and a few added.( touring screen with blade , scottoiler , heated grips , Gear indicator, just added a radiator guard)
Am seriously pleased with it although the gearing is pretty low . will be looking into sprocket sizes here
Re: Newbie from Cumbria [message #300578 is a reply to message #300538] Mon, 15 April 2019 16:18 Go to previous message
spagiratwink is currently offline  spagiratwink   United Kingdom
Messages: 528
Registered: January 2016
Karma: 4
(6) Moto1 GP Racer
https://www.gearingcommander.com/
Enter your bike and see what you might need smile
Previous Topic: New Member
Next Topic: New Toy for the Summer
Goto Forum:
  


Current Time: Sat Apr 20 15:38:05 BST 2019

Total time taken to generate the page: 0.01737 seconds