CBR650F Clunky shifting, metal sounds when releasing clutch and giving gas.

gleroux said:

Hello!

I've been riding my 2015 Cbr650F for a good bit now, nothing was wrong with it, or so I thought.

One day leaving the gym about 5 months ago, I dropped the bike, on its left side. Replaced everything as for fairings, my sliders save everything.
The clutch as been feeling weird ever since, feels like it's grabbing less, certainly placebo on that part, but it's clunky, from neutral to 1st loud clank, 1st to 2nd , i've got to give it a firm kick or it will hit neutral and it's definitely clunky. 2nd to 3rd still hard, but manageable. I've been working with it for the past 5 months but today I heard some metal noises like clanking, not gear grinding, or I hope, when giving gas at a stop sign when releasing the clutch. Like toc toc. I don't how to describe a sound with word bruh.. Anyways it doesn't affect the riding but it does feel like it's harder to get going, I gotta give it more gas or I'll stall.

Anyways, I don't know what's wrong, what could it be? The rest of the driving feels fine.
If it's tranny problems, i'm done. it'll cost me an arm. I feel like it's something in the clutch or the gearshift drum. Hopefully that's it.

help!.

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FinCB650R said:

Was it running when you dropped it or did the shifter lever hit the ground when it fell?

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miweber929 said:

Couple things. So the odds you broke something inside the transmission from a small fall are small, so try to get past that or every noise, whatever, feels like something when it’s most likely nothing.

Things to look at that COULD be wrong: gearshift lever bent or linkage binding, clutch lever perch bent, broken or otherwise not right. There is also a pin switch on the clutch lever that does a surprisingly amount of things including slightly raising the revs when starting out which may be why it feels like it’s going to stall. Be sure it’s in place and functioning correctly.

The other slight possibility is the shift shaft that’s at the top of the engine case, that can get pushed in, especially if your foot hits it in a crash and makes shifting quite poor or even non-existent if pushed in enough. Your shift linkage attaches to it, try to pull that arm in and out (not up and down) and see it it moves more than a mm or so. If it does, pull it out and see if shifting improves. Theres a bunch of info on the forum already about it but know it’s a $3 sacrificial part but requires the clutch gasket to be removed to replace.

Start with that stuff, and maybe get a video of the noise, and we can try to help.

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