DR250 wobbly rear sprocket

[rok-the-boat]

I have an early 1990s DR250 and have noticed that the rear sprocket moves about too much - lateral movement, not back and forth as you might expect. Any guesses as to why or useful tips before I pull it apart?

[Rincewind]

It's probably best if you just pull it appart and get in there and take a look.
If it's the same as the set up on my 87 600 it's a rubber shock drive coupling thingy and it has probably broken down,it's easy to fix the rubber shock drive thingy just pulls out of the hub easy peasy !!!

[Crasherfromwayback]

I have an early 1990s DR250 and have noticed that the rear sprocket moves about too much - lateral movement, not back and forth as you might expect. Any guesses as to why or useful tips before I pull it apart?

Yeah mate, if it has a rubber 'cush drive', then it may be no big thing.
I assume it does, as if it's a solid mounting then I'm sure that you'd notice the sprocket mounting bolts loose.
Unless it's REALLY excessive....don't sweat it.

[Bonez]

I have an early 1990s DR250 and have noticed that the rear sprocket moves about too much - lateral movement, not back and forth as you might expect. Any guesses as to why or useful tips before I pull it apart?

As mentioned it may be just the cush drive rubbers being worn/breaking down. Also make sure all the spacers are there and fitted correctly.

[White trash]

I reckon the sprocket spacer (beneath the carrier) hasn't been fitted or the bearing in it's fucked.

[Bonez]

I reckon the sprocket spacer (beneath the carrier) hasn't been fitted or the bearing in it's fucked.

That just about covers everything I think.

[XTC]

Have a look here
http://www.mrcycles.com/fiche_section_detail.asp

This site has microfiches online for alot of bikes. If your DR is the SE model 1990-1995 then it has a cush drive and sprocket carrier. If it's just a DR250 then the sprocket should bolt directly to the hub.

Andy.

[Bonez]

According to the parts fiche the sprocket bolts directly to the hub.
http://www.mrcycles.com/fiche_section_detail.asp

On 90-93 models yes. Later models had a seperate rear sprocket drum with rubber shock absorbers aka cush drive.

[XTC]

Yeah had a look into it further..... Hope the microfiche helps him see what goes where.

[Bonez]

Yeah had a look into it further..... Hope the microfiche helps him see what goes where.

A good resource alright. I was surprised how far back they go. All my old shitters are covered . Thanks.

[XTC]

A good resource alright. I was surprised how far back they go. All my old shitters are covered . Thanks.

No probs bonez - Just googled "1991 DR250 parts diagram" and there it was top of the page....... I love Google.

[rok-the-boat]

OK - pulled it apart. Mine's a 1993 and it has a bearing which is totally shot. Gave it to a local car/machine shop to pull the bearing and fit a new one.

Cheers for the advice.

[Bonez]

OK - pulled it apart. Mine's a 1993 and it has a bearing which is totally shot. Gave it to a local car/machine shop to pull the bearing and fit a new one.

Cheers for the advice.

Good on ya for getting it sorted.