Is there any place to get nano-trans in the US?

I couldn’t get hold of any Nanotrans locally so I put in some 10W40 motorcycle gearbox oil blended with 20% ATF. It worked a treat and the clutch is much better.

Btw, I noticed on a Jim Snell video that he advises avoiding synthetic oils in the gearbox as they are too “clingy” and cause clutch drag. It seems a reasonable hypothesis.

Great disappointment at today’s trial: the drag is back! After the first few sections I realised I had two bite points. One with the lever against the grip and one with my finger at nearly full stretch. After waiting to go into a section, first application of the clutch was the former. Any further slipping of the clutch and it was the latter. Next section: back to square one.

For this trial I developed a technique of pausing and slipping the clutch just before the Begins card, so I could get the consistent full-stretch bite point all through the section. This was much better but it’s still far from ideal.

I’m still scratching my head about what to do next. Another change of oil? Aftermarket clutch plates?

Are the areas on the clutch basket and hub where the plates touch smooth,any notching will give a terrible clutch

3 hours ago, huski said:

Are the areas on the clutch basket and hub where the plates touch smooth,any notching will give a terrible clutch

Yes. All checked a couple of months ago and no rework necessary.

I'd replace the clutch plates

+1 for Putoline Nanotrans, it totally cured my dragging clutch issues on my 2014 Evo 250. I'd tried everything else but this was the only thing that worked...and so easy!

I put in Nanotrans and it is much better. I’ve got it adjusted so that one-finger slipping is comfortable and not too big a stretch.

My only remaining gripe is that gear changes still need a four finger pull back to the grip. Leaving fingers between the lever and grip gives some pretty ugly clunky gear changes.

You have something really adjusted wrong or you need a master cylinder.