who'd funk it

[fatboy74]

Hi I am a newbie. This is a little story about me and my mate's adventure that went a bit wrong. We both ride R1150GS. It was last weekend when we took a trip up to the Lake districts. The weather was good, the roads were great and the scenery was magical. It was all going so well until my mates bike suddenly developed a clutch fault. The lever would pull but it wasn't holding the clutch. The problem was temporarily fixed by bleeding, but the problem came back after an hour or so riding. On Sunday we headed back to London, my mate was riding in front of me in case the problem occured and needed help. During a fuel stop I noticed my back tyre was very shiny, under closer inspection I noticed the tyre and drive shaft was covered in what looks like engine oil. Obviously I decided it was not fit to go on. My gs was covered in oil and my mates was riding clutchless. We decided to call for recovery and luckily the man with the van managed to fit both our bikes on. It was quite a sight; seeing two supposedly uber efficient bmws on a recovery van. So any guess as to why my drive shaft and back tyre is covered in oil and why my mates clutch just gave up.

Thanks for reading this

 

[Steptoe]

your problem sounds like the rear bevel seal has blown - usually caused by the rear bevel bearing starting to break up, and damaging the seal - you can usually tell before it happens by the rumble/vibes or the rough feeling through the rear wheel -

or it could be the output seal in the gearbox - you need to be a bit more discriptive in your post -

Your mates bike, sounds like the clutch slave cylinder has given up -

Both problems not unheard of, i'm afraid. Especially the rear bevel bearing

 

[fatboy74]

Thanks for the reply Steptoe, the bike was acting a bit weird before I discovered the oil. We were on the motorway when I heard a knocking noise from the bottom of the bike near the footpeg area and then some vibration from the back wheel. I gave a quick glance but didn't see anything come loose or unusual, only until I came to the fuel stop did I realise all the oil on the back tyre. So I think your theory is right. Do you think it will be an expensive jobby?

As to my mates bike he has taken it to his local bike shop and they told him it was the master cylinder that needs replacing.

Thanks again

 

[Steptoe]

Do you think it will be an expensive jobby?

Thanks again

if you've only only damaged the crown wheel output bearing and seal - your looking around £90, parts and labour -

Depends how long you rode it with no oil in it, it may need other bearings, hard to tell until you open the bevel