Clutch slipping

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Clutch slipping

Postby Fxr84 » 07:55 pm May 15 2018

Clutch slipping when bike gets on the pipe, have new cable running kawasaki 10-40 oil, thought was the cable when replaced having same issue as soon as gets on high end clutch slips, not getting all of the top end
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Re: Clutch slipping

Postby Jason » 08:14 pm May 15 2018

Clutch springs OEM or aftermarket?
Old or new?
Tension OK on springs?
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PLEASE! Do not "dip" PWK Keihin carbs in Berryman's to clean them! It will damage the internal o-ring (jet block gasket).
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Re: Clutch slipping

Postby jjavaman » 08:40 pm May 15 2018

You could try ATF type F. Maybe try sanding the fibre plates?
97-220 with a PC pipe. 2015- RB carb and head mod
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Re: Clutch slipping

Postby Fxr84 » 08:54 pm May 15 2018

All Oem all within spec, basket isn’t grove, strange that is ok low but when pwr come on it doesn’t want to get all the motor is laying out
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Re: Clutch slipping

Postby Jason » 10:04 pm May 15 2018

Just for fun... :razz:

WHICH KDX are we talking about??
Thank you, Julien D for all your hard work!

PLEASE! Do not "dip" PWK Keihin carbs in Berryman's to clean them! It will damage the internal o-ring (jet block gasket).
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Clutch slipping

Postby SS109 » 02:23 am May 16 2018

Do you have the proper free play at the clutch lever?
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Re: Clutch slipping

Postby Fxr84 » 04:15 am May 16 2018

220 and the free play is good
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Clutch slipping

Postby SS109 » 05:59 am May 16 2018

What did the frictions and steels measure out at? How about the spring measurement?
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Re: Clutch slipping

Postby Fxr84 » 08:31 pm May 16 2018

Spring 36, fric 2.1
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Clutch slipping

Postby SS109 » 05:00 am May 17 2018

So, your clutch isn't within spec.

Spring free length = 38.7mm - service limit = 37.2mm. Yours are 1.2mm under minimum spec - Replace the clutch springs.
Frictions thickness = 2.92 to 3.08mm - service limit = 2.73mm. Yours are .63mm under minimum spec. - Replace frictions

That explains why it won't handle the power. Also, with the info you provided, I would bet the steels are under spec and need replacing as well. Easy job.
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Re: Clutch slipping

Postby Fxr84 » 05:18 am May 17 2018

Thanks for reply, I’m ordering new clutch pack many have noted going back to oem for clutch pack, next question I know this has been gone over million times, I use recommend oil in case should I stick with it or is there a better oil to run, ie rotella, I never ran it in any of my bikes ,all trail riding.
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Clutch slipping

Postby SS109 » 07:04 am May 17 2018

Oil is totally subjective. I personally run ATF in all my bikes and love how it's improves shifting feel. My best friend loves Rotella and it has served him well. The only thing everyone agrees on is never use a standard automotive oil in your bike as they have friction reducers that can actually cause your clutch to slip. So, good luck making a choice. :mrgreen:
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Re: Clutch slipping

Postby Jason » 01:44 pm May 17 2018

Do you own the OEM service manual or subscribe to the Cyclepedia manual?
Thank you, Julien D for all your hard work!

PLEASE! Do not "dip" PWK Keihin carbs in Berryman's to clean them! It will damage the internal o-ring (jet block gasket).
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Clutch slipping

Postby jjavaman » 11:52 am May 18 2018

+1 on the ATF type F. Inexpensive and works great. I also put the full litre in it, seems to quite down the rattling :)
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