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One engine, 2 wheels, reformed squid rider 馃槀馃悪
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Discussion Starter · #1 ·
Im in the process of getting the clutch spring kit (already purchased) and already have done the Norton clutch cable spring mod to the bike.

I've read about changing the OEM clutch plates to the Spears or Barnett (probably the same) for better clutch feel, engagement, and was wondering if for street riding and occasional track days (new to track days) if it would be good to get the plates without the judder springs or keep the 3 thin and 2 thick plates with the judder springs?

I've done the search feature here on this question but really no answer to the question and through research now know what the judder springs do for the OEM clutch.
Are they necessary for what I'll be doing?
Feedback from those in the know would be much appreciated as I found nothing on this topic.
Thanks. 馃檹馃徑
 

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I tried eliminating the judder spring and didn鈥檛 like the feel. I put it back. It鈥檚 a personal thing. You may like it. As far as having that little extra pad surface material of the wide plate, I doubt it really makes much of a difference in friction.
 

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One engine, 2 wheels, reformed squid rider 馃槀馃悪
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Discussion Starter · #3 ·
I tried eliminating the judder spring and didn鈥檛 like the feel. I put it back. It鈥檚 a personal thing. You may like it. As far as having that little extra pad surface material of the wide plate, I doubt it really makes much of a difference in friction.
Good to hear.
I would thing that feathering the clutch would be more difficult without the judder springs in. 馃
I may wait with that until down the road for now but if anybody has anymore feed back on this from personal experience that would be nice to hear. 馃憤
 

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One engine, 2 wheels, reformed squid rider 馃槀馃悪
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Discussion Starter · #5 ·
If you still have questions, we have a full write up on all of the issues we've found while R&Ding the N400:

Kawasaki Ninja 400 / Z400 Clutch Slipping, Poor Shifting, False Neutrals, and Dropping Gears 鈥 Explained and Fixed!
Thank you sir.
Im about to go cross eyed with all this reading in the past month. 馃槀
All the help is appreciated and reading is necessary as I'm wanting to know everything about this bike so I know what I'm doing.
I am really happy with all that can be done with this little Ninja. 馃槏馃
 

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I have a 2023 N400. Would you guys recommend that I replace the clutch springs with Barnett heavy duty springs at some point? I thought Kawasaki uses better springs on newer models. I would greatly appreciate any advice. Thanks!
 

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One engine, 2 wheels, reformed squid rider 馃槀馃悪
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Discussion Starter · #7 ·
I have a 2023 N400. Would you guys recommend that I replace the clutch springs with Barnett heavy duty springs at some point? I thought Kawasaki uses better springs on newer models. I would greatly appreciate any advice. Thanks!
I don't think the springs were ever upgraded on the newer model bikes.
You may never have any issues with the factory springs as the most important thing is to have the clutch cable adjusted properly.

I replaced my springs because I've tracked the bike so at the first oil change I swapped out for the Barnett springs. Easy affair to do so and there's plenty of YouTube videos on the procedure.

Good luck and if you're just riding the bike in a normal fashion and not tracking or racing you should be fine.馃憤
 
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