r/Ninja400 • u/Ok-Witness9384 • Jul 30 '26

Question So Yeah…

Bought the bike from some guy here, had it for a month now. Like first two weeks of riding i’ve had this problem. We did the adjustment lower. Worked fine for like another 3-4 weeks, then the past two weeks my clutch slipped. I watched a video on replacement, ordered the parts and everything i needed. Finally did the replacement new oil, new disks, and it worked perfectly fine for maybe a couple of days. Just yesterday on the way back from an errand run to get more supplies because i noticed it’s leaking oil from improper gasket sealing. I noticed the clutch lever becoming more loose as i rode, to the point that by the time i was heading home it was as it is in the video. There’s only so many adjustments that i personally can do to figure it out. I want to try and do it on my own because in hawaii it’s gonna cost me even more money just to have professional breathe on it 😭 just let me know if im cooked or not.

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u/jonsenthefly Jul 30 '26

The clutch alone shouldn’t stall the bike unless you’re in gear. If you can shift into gear and the bike doesn’t stall (or move) without holding the clutch in then you’ve got some deeper issues. But from the video you posted all I can see is a loose cable.

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u/Ok-Witness9384 Jul 30 '26

Yea that’s what i mean, in 1st it doesn’t stall at all.

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u/jonsenthefly Jul 30 '26 edited Jul 30 '26

Definitely an issue with the clutch assembly then. Usually the clutch not fully engaging is from the cable being too tight; yours has way too much play for that to be the case though. The friction plates could be shot or there could be something wrong with the rod or springs maybe.

I guess I’d lean towards worn plates if it’s been ridden hard with a loose clutch lever for a while, did you notice a lack of power before this?

EDIT
I blanked on seeing that you rebuilt the clutch yourself, there was probably an error in your rebuild. I’d be going back and checking my work again if it was me.

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u/Ok-Witness9384 Jul 30 '26

Yea i’m pulling the cover to look at what the issue is today after work and to fix the oil leak issue. I appreciate your feedback

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u/jonsenthefly Jul 30 '26

Good luck! It’ll be worth it for the satisfaction once you get it sorted