DR650 / XF650 question

[XF650]

Does it matter which way round the front sprocket goes on?
I.e. boss on the inside or outside.
I'm using the C Clip retainer, not the bolt on plate retainer.

[cooneyr]

Get it sorted?

Cheers R

[Crisis management]

Good one Ryan, and I thought I was slack..... Ooops, that probably sounds ruder than I meant, was supposed to be a gentle poke rather than a full on hiding. Apologies if I have offended.

I think it is the hub inwards but can't really remember (wine is my excuse). Stick it on one way, see if the chain guides line up (viewed from the rear) and repeat until totally confused. Failing that, rush round to the lazy bunny's place and look at his........


I am now leaving the country to prevent any GBH charges!

[XF650]

Get it sorted?

Cheers R

Thanks Ryan, Roger & Ian -
Got confused when changing sprocket to 14th & discovered not enough clearance for chain with the retainer plate. I started to wonder if the boss could act as a spacer against the plate, to give clearence.
Have fitted C Clip as the sprocket retainer now but there is a bit of sideways movevment on the shaft - is this detrimental or will the sprocket just find it's correct line anyway?

[Transalper]

Shoot, I just can't picture what you are talking about using a C Clip. I guess a C Clip could stop the sprocket falling off the shaft but what stops the sprocket working its way over to the engine case and then eating into it?
On the DR650 we grind the edge off the retaining plate to make it a smaller diameter so the chain doesn't ride on it when using the 14 tooth sprockets.

[XF650]

The C Clip came with the (DR650) 16th sprocket, that i have just replaced with a 14th. It fits into the groove on the shaft that the retainer plate uses.
Perhaps I should take some pics & measure the sprocket movement that the C Clip allows.
Apologies if this topic should be in the Bike Mechanics forum.

[Crisis management]

but what stops the sprocket working its way over to the engine case and then eating into it?


The output shaft spline finishes before it enters the cases so the sprocket can't rub against them, I wonder why we have two different systems of fixing the sprocket?

[XF650]

C Clip seems to allow approx 2mm sprocket movement on the countershaft spline, between the clip & spline end.
It didn't rattle but is that amount of play still acceptable?

[far queue]

That C-clip doesn't look like its hanging on by much. If the retaining plate that the 1996-on DR uses fits, then I'd be getting one of them, you've got the holes in the sprocket all ready for it.

[cooneyr]

Good one Ryan, and I thought I was slack..... Ooops, that probably sounds ruder than I meant, was supposed to be a gentle poke rather than a full on hiding. Apologies if I have offended.

I think it is the hub inwards but can't really remember (wine is my excuse). Stick it on one way, see if the chain guides line up (viewed from the rear) and repeat until totally confused. Failing that, rush round to the lazy bunny's place and look at his........


I am now leaving the country to prevent any GBH charges!

That wasnt quite as slack as it sounded - a phone call preceded my post :D

XF - if you want I have a plate for the 14 tooth sprocket you can have. I dont intended in going back to a 14 or smaller CS. The C clip doesnt look that robust. Other option like others have said is simply to grind the 15 tooth plate down.

Cheers R

[XF650]

Thanks Ryan - will take you up on that retainer plate. I would prefer not to butcher mine so that I can use the rubber cush ring thingy with the 16th for touring.
The C clip is actually an E Clip & it's advantage is quick & easy sprocket changes. Seems quite a lot of DR riders in the States use this method.
But I'm just not happy with the sprocket movement on the countershaft that that retaining system allows.
Thanks everyone for your comments.

[cooneyr]

Thanks Ryan - will take you up on that retainer plate. I would prefer not to butcher mine so that I can use the rubber cush ring thingy with the 16th for touring.
The C clip is actually an E Clip & it's advantage is quick & easy sprocket changes. Seems quite a lot of DR riders in the States use this method.
But I'm just not happy with the sprocket movement on the countershaft that that retaining system allows.
Thanks everyone for your comments.

Send a PM before you hit town next time your heading north.

Cheers R

[talbertnz]

Thanks Ryan - will take you up on that retainer plate. I would prefer not to butcher mine so that I can use the rubber cush ring thingy with the 16th for touring.
The C clip is actually an E Clip & it's advantage is quick & easy sprocket changes. Seems quite a lot of DR riders in the States use this method.
But I'm just not happy with the sprocket movement on the countershaft that that retaining system allows.
Thanks everyone for your comments.

couldn't you pack the 2mm out with a washer of some sort?

[cooneyr]

couldn't you pack the 2mm out with a washer of some sort?

It would have to be a splined washer as the play that XF talks of is between the inside of the CS sprocket and the inner end of the splines. Sticking a normal washer that would fit over the CS would end up with it rubbing on the cases or CS seal which aint going to end well.

Cheers R

[NordieBoy]

Have fitted C Clip as the sprocket retainer now but there is a bit of sideways movevment on the shaft - is this detrimental or will the sprocket just find it's correct line anyway?

Not an issue.
The chain will let it "self-centre".
The people who have been running it that way havn't reported any issues so far.