Cush drive already...... - .: XT660.com

Timpo · # 1 11-12-08, 21:47

I thought as much.... with not even 2000 mile on the clock, the cush drive and sprocket carrier bearing is shot.
This has been a bugbear of mine and I have expected this from day one.
In Capt Motos poll I mentioned in 'my wants' an 18" wheel with no cush drive for this reason.
Now I have the catalyst in my head to source this mod............
I'd like to keep the rim but have a fixed type sprocket/hub arrangement. If you have experience of such a mod, please contact me with some info, thanks.

Timpo.

stuxtttr · # 2 12-12-08, 09:24

Thats crap, what have Yamaha said they will do about it ?

I like the 18 rear idea opens up a better choice of tyres.

maxwell123455 · # 3 12-12-08, 09:50

2000 miles thats a bit bad

! The XTX/R isnt even that bad. I wonder could it be to do with the fact the Tenere is carrying more weight, therefore more force going through the crush drive rubbers??

I dont think yamaha will do much apart from say its a part that is suppose to wear out and should be replaced as and when needed.

Gas_Up_Lets_Go · # 4 12-12-08, 09:59

Quote:

Originally Posted by Timpo

with not even 2000 mile on the clock, the cush drive and sprocket carrier bearing is shot.

How do you tell ? without taking the thing to bits I mean, how do you know from a riders perspective, what are the signs, tell tails etc??

I only ask as with over 10,000 miles on the bike, 90% of those fully loaded I'm not seeing anything un-toward....

Timpo · # 5 12-12-08, 11:07

Quote:

Originally Posted by Gas_Up_Lets_Go

How do you tell ? without taking the thing to bits I mean, how do you know from a riders perspective, what are the signs, tell tails etc??

The sprocket carrier can move radially without the wheel hub moving. There is also play in the SC bearing.
I don't think Yamaha will give me any joy, as rubbers are sacraficial/wearing parts so it is expected, so I'll not even ask. I don't like rocking the boat....

At the last tyre change I had noticed a 'flaking' of the rubbers, it maybe worth you guys keeping tabs on yours.

I'll do a change on them next week and let you know. It will have new bearing fitted also whilst I'm there.

Right, I'm off to Liverpool for a pint or two......

Timpo.

Timpo.

gregor · # 6 12-12-08, 11:10

I had a look after about 1000miles and was surprised the rubbers did look a bit tatty, with some rubber 'dust' in the hub.

It all bolted back together nice and tight so not a problem at the moment, something to keep any eye on though.

Kev · # 7 12-12-08, 12:42

Once the sprocket rubbers have been compress after a few thousand miles, you will find because of only using a single ball bearing in the carrier there would be small sideways movement in the carrier.

Remove the sprocket carrier, place the rear axle shaft through the carrier bearing, then see how much free play there is, then compare it to a new bearing. If it has worn out at that milage then this would be classed as premuture failure.

scottnet · # 8 12-12-08, 13:06

Is it an idea to lube the rubber with WD40 or such , would this stop the rubbers tearing ?

Kev · # 9 12-12-08, 13:18

Quote:

Originally Posted by scottnet

Is it an idea to lube the rubber with WD40 or such , would this stop the rubbers tearing ?

No not at all, they must be kept away from oil & contaminants.

The rubber part that usually tears is only the support strap that holds the rubbers in place to make it easy to insert the sprocket holder. There will be a small amount of rubber dust or small partiticals in the hub, this is normal after a few thousand miles.

dallas · # 10 12-12-08, 15:45

Timpo, you did a lot of offroad ridin', maybe that's the cause? I guess with normal street ridin', it won't go that fast? But on the other hand, 2000miles is way too fast! I'll keep an eye on them, thanx. Let us know what your dealer had to say in this matter. Greetz, Hans.

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