13-07-15, 07:04 AM
As far as I know you can only do it by:
1) Remove gear shift pedal
2) Remove sprocket cover
3) First try and rotate nut by hand
4) Get a decent adjustable open ended spanner and fit it over the flats of the nut that aren't covered by the tab washer, and try and rotate it backwards and forwards.
If it doesn't move it's probably O.K.
If it does move it's probably not.
It's a known fault, I suppose you could call it a 'common fault', except it's not that common.
[size=1em]So you're bike can suffer from it, but it's more likely not to. [/size]
[size=1em]Yamaha do actually make a slightly bigger nut, to assuage the worry.[/size]
[size=1em]But in reality that's all it's likely to do, because it doesn't address the cause of the problem really. [/size]
[size=1em]Oddly enough I reckon you can probably solve the problem (assuming the threads aren't shagged) with the original nut if you want to. [/size]
[size=1em]This involves grinding off part of the the lip on the nut, so whilst it tightens on the shaft, it doesn't tighten against the sprocket, it simply fits flush with it. After all, there is no specific reason why it needs to 'tighten' against the sprocket, it only needs to prevent it moving laterally. [/size]
[size=1em]If memory serves some Honda sprockets used to be 'loose' in the 1970's. [/size]
1) Remove gear shift pedal
2) Remove sprocket cover
3) First try and rotate nut by hand
4) Get a decent adjustable open ended spanner and fit it over the flats of the nut that aren't covered by the tab washer, and try and rotate it backwards and forwards.
If it doesn't move it's probably O.K.
If it does move it's probably not.
It's a known fault, I suppose you could call it a 'common fault', except it's not that common.
[size=1em]So you're bike can suffer from it, but it's more likely not to. [/size]
[size=1em]Yamaha do actually make a slightly bigger nut, to assuage the worry.[/size]
[size=1em]But in reality that's all it's likely to do, because it doesn't address the cause of the problem really. [/size]
[size=1em]Oddly enough I reckon you can probably solve the problem (assuming the threads aren't shagged) with the original nut if you want to. [/size]
[size=1em]This involves grinding off part of the the lip on the nut, so whilst it tightens on the shaft, it doesn't tighten against the sprocket, it simply fits flush with it. After all, there is no specific reason why it needs to 'tighten' against the sprocket, it only needs to prevent it moving laterally. [/size]
[size=1em]If memory serves some Honda sprockets used to be 'loose' in the 1970's. [/size]