2012 NT, clutch slipping...

[BrewMyTea]

Hello!

Finally the UK weather has let me use my NT700! I've missed this bike over the winter, it's a shame it taken me so long to find the bike for me. Anyway...

I have had an issue where I'll be in 2nd or 3rd gear and trying to accelerate hard causes the revs to fly up with little to no movement. Gentle acceleration on the other hand is fine.

I've done my best to adjust the clutch cable free play, and I've had it at factory requirements, a little less and a little too tight. Nothing seems to be remedy the issue.

During that, I noticed the cable is a little frayed at the lever, so I have ordered a new one for that to be replaced.

Is it possible that I have not noticed and ended up burning out my clutch pack out?

If so, I'm really struggling to find a UK based kit. I've looked at David Silver and Fowlers without any luck.

Best thing I found was this kit on eBay, which could do the job but often are lacking the gasket I think I need?

Though I had a read over this post here and apparently it's really unlikely to be the clutch pack

I'd really appreciate some help with this!

Thank you.

 

[BrewMyTea]

I've also managed to find this, if the EBC kit is rubbish.

Never tinkered with clutch pack before, but surely it's not too difficult?

 

[mikesim]

What engine oil do you use in your NT? It is possible that the oil you used is an "energy saving" motor oil for use in passenger cars. This oil has friction modifiers that while improving fuel economy play hell with the wet clutch your NT has. Also, some aftermarket oil additives contain moly or graphite which also play hell with wet clutches. Always make sure that you use an oil that meets JASO spec MA or MA2. If the oil is labeled energy conserving, don't use it. A cable that is binding up can also cause the slippage you describe if it is not allowing the clutch discs to engage completely. The clutch on the NT is rather robust so I would be rather surprised if the clutch discs were worn out without some external cause. I replaced the crank sensor on my NT at 140,000 miles and since I had the side cover off i figured it would be a good idea to proactively replace the clutch discs. I was amazed at how good of condition they were in. I suspect that they would have continued to provide good service up to 200,000 miles. I hope this info helps!

Mike

 

[BrewMyTea]

What engine oil do you use in your NT?

Mike

Hi Mike!

That's what I thought as well which is why I'm a touch more relaxed about having to replace all the clutch plates. Seems like a time consuming job.

My bike only has 33k miles so far, and with it being a 2012 it's been relatively well looked after which a few service stamps in the handbook.

The oil I used was Castrol POWER1 4T 10W-40 Motorcycle Oil 4L which looks like it meets the JASO specs.

It may be that the cable is getting caught somewhere I can't see and could be worse as the cable travels through into it's protective sheath. Might explain why adjustment is doing naff all.

Hopefully once i get that swapped out the issue will resolve.