Slipper clutch

Tony, I dont think this is a Kawasaki thing....Check this site out and my explanation will make sense. Motorcycles Clutches | Product Information | F.C.C. Co.,Ltd.

This company makes 99% of the clutches motorcycles use. Honda, yam, suz, duc, aprilia, harley..and the rest. I think they also do all the japanese cars, but thats not the point.

If you click on "assist slipper clutch" its their new design. Yamahas new r1 uses it, the ninjs 300, severla harleys, and the list goes on.

Bottom line is it has less parts. 3 springs instead of five is a significant cost savings for everyone, so in it goes for the newer designs. You can tell it costs less because its so simple. It even comes Kashima coated.

So, they would have to send an old bike (ninja 1000) right back to square 1 if they were to do a retrofit, which they wont do. That explains why the new versys 100 go tit, but not the ninja...its cheap.

It does work incredibly well. My total cost was under 500, for everything, and i went semi crazy buying things. Aftermarket slippers are usually around 1000-1500, so I am very happy.

Navy, I assume your in the service..thank you for that. For the best info, click on the link chrispy posted.

We really got into it. The one guy, Manracing, ordered all the parts first and assembled his bike. He did not have his engine in the frame, so I believe I was the first to have a running slipper clutch. I ordered mine after I knew it all fit together, so the other guy gets the credit. He took the risk.

I just followed his lead.

Its an easy swap to do. Its simply swapping factory parts, so it all fits together perfectly, with zero mods.

An owners manual is nice to have, but there are enough pics posted over there to get you through the project.

Its a far better clutch than our bike came wiht. Much better oil circulation.

Oh, and due to the slightly longer length of our clutch arm, 1 finger pull...

ToNY97 said:

As usual, cannon is a wealth of knowledge. I eagerly glean the crumbs that fall from your table of wisdom.

So that's why I could pull the clutch on the N300 so easily and with our N1K, I feel like I'm doing grip strengthening exercises.

The new N1K debuted in 2011 and the latest version of the N300 came in 2013.
I understand but I'm not pleased.

Click to expand...

Tony, the new clutch....Notice how they call it an "assist slipper"

It does both.....Its similar to a traditional slipper, BUT due to its design, the power being sent through all the pieces tends to pull it together. The older, stock design needs five heavy springs to suck the pieces together.

This new one uses three wimpy springs (compared to old) and the feel of it on my ninja is one finger light.

Thanks for the kindness about my knowledge. I love motorcycles, and especially the best ones, like our ninjas. I know so little in the grand scheme of it all, but love talking about my experiences.

I did some parts mixing, as explained in that other thread. I discovered the arm for our ninjas is just slightly longer than the versys 1000 arm.

It ends up meaning that this clutch, and our parts, gives a soft, one finger pull. It is 100% awesome.

I believe we really have Harley Davidson to thank for the design. They had it a year before anyone else, so they probably paid the r and d for it.

I'd guess it was a response to "we want a lighter clutch pull"

I wish I had words to describe the next thing it does. Heres the best I have.

A dirt bike typically wont have the rubber cushions in the rear hub. When you dump a motocross bikes clutch, it just goes.....kind of a shockwave trough the whole chassis. Sadly this is also true when you let off the gas....A overly sensitive connection????

This clutch slips ever so slightly when you let off the throttle...Maybe not even a slip. Call it a damping of sorts. It feels more like a fluid connection vs a metal to metal.

If anyone wants to do it, we have a complete parts list over there and I'll talk you through anything I possibly can.