Difficulty downshifting? - ZX6R Forum
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post #1 of 19 Old 02-27-2011, 08:20 AM Thread Starter
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Difficulty downshifting?

Hi all, having a problem with my 2006 636 when it comes to down shifting...

I'm a new rider, only been out on the road for a week, passed my test 6 months ago but only just got all the gear together. Anyway, I have a 2006 C6F, with 6000 miles on the clock, totally standard, seems in excellent condition, and I'm inclined to believe that it hasn't had a particularly hard life (500 miles in the last 2 years)

I've been out riding over the weekend, and I've started to notice that when down shifting from 3/4, more often than not I can't find the next lower gear, the bike finds neutral fine, and shifts up from 1st to 6th with no problem, I can shift down from 6th to 4th no problem but after that it's just as if there are no more gears, feels similar to trying to change down from 1st.

I pulled into a quiet road and had a play with it, tried adjusting the clutch cable via the lever adjustment, fully in and fully out, but no effect. The bike will change down eventually, clutch fully in and out several times and it will change after a few good kicks, just seems to stick most of the time, several times been at a junction and not been able to get down to 1st in time for the lights changing. I am a new rider but I'm sure it's not just me being a newbie, at least I hope not.

Any help on how to remedy the problem would be much appreciated

If it's of any importance, the bike hasn't been ridden much for a few months before I got it.

Thanks!
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post #2 of 19 Old 02-27-2011, 09:32 AM
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Check the oil, and check the shifter linkage and make sure its snug.
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post #3 of 19 Old 02-27-2011, 10:04 AM
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where the shifter links to the gear box,theres a nut undo and take it off the gear shaft.then holdind the linkage in hand try to move the gear shifter upand do it should be smooth,if its tight or notch u will need to strip and greas it up,if not could be selector ,when was the oil last changed,but try the linkage first i had same prob and saved my self loads of work,mines was jumping out of gear it would not go down with out stamping it,took linkage off tryed to move up and down and it was solid, i stripped it greased it now its fine.good luck

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post #4 of 19 Old 02-27-2011, 10:11 AM
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clean the shifter linkage 1st and make sure its tighten correctly. and you could change the oil bc i noticed right after i change my oil my bike shifts alot better. also wat kind of oil are you useing ?
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post #5 of 19 Old 02-27-2011, 10:13 AM
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I agree wth the above posts

I had a similar problem with my bike, but I could only get gears occasionally.

I cleaned the gear linkage and changed the oil and filter now its absolutely fine.
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post #6 of 19 Old 02-27-2011, 11:54 AM
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Before you change the oil, make sure the level is not too high or too low, that maybe the problem, either add or drain some oil if its not right before you change the oil (unless its that time anyways)
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post #7 of 19 Old 02-27-2011, 01:55 PM Thread Starter
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Thanks for the replies.

I've just removed the gear lever and linkage, cleaned them up and greased the bearings, I will go for a ride tomorrow to see how it is.

Last edited by AndyP123; 02-27-2011 at 02:13 PM.
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post #8 of 19 Old 02-27-2011, 02:13 PM
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u have got the bolt copletely out of the clamp ye. coz if the bolts still in it will not go on.

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post #9 of 19 Old 02-27-2011, 02:18 PM Thread Starter
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I was hoping you wouldn't see that post, was my fault trying to fit it upside down..... its late...

I've cleaned and greased though, so will see how it is tomorrow.
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post #10 of 19 Old 02-27-2011, 02:26 PM
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we all done that bro dont even worrie about it ,hope ur bikes sorted let us now.

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post #11 of 19 Old 02-27-2011, 09:19 PM
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Sounds like some solid advise to me.

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Originally Posted by davidreaper View Post
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post #12 of 19 Old 02-28-2011, 07:08 AM Thread Starter
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Been for a quick ride this morning, I don't think cleaning/greasing the gear linkage has made much difference, I can get down through the gears now but thats because I've worked out how much of a kick I need to give it to change down. It is super slick on the way up, only needing a tiny flick upwards to engage the next gear, but it isn't the same on the way down, especially from 3rd down. Maybe thats how they are and I just need to get used to it?

The lever moves freely both up and down, but when shifting down from 3rd there is a deffinate resistance at the bottom of the lever travel, needs a good kick to get over it, then it engages the gear.

Going getting a new tyre fitted now, and the chain does seem a bit loose at the moment, so maybe when its been tensioned properly it might be different.
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post #13 of 19 Old 02-28-2011, 11:05 AM
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i know its a daffet question but do u blip the throtala as u change down.

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post #14 of 19 Old 03-08-2011, 06:27 AM
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Change your oil! Because these bikes have a wet clutch, it is not uncommon for particles of the clutch to get stuck in the gearbox. A fresh change of oil will clear out any debris and help wash out any foreign matter in your gearbox. I had a similar issue on my 95 zx6e. Down shifting became stiff at one point, after I changed my oil it shifted nice and smooth all the way down. HOPE THIS HELPS M8!
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post #15 of 19 Old 04-15-2019, 06:57 AM
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I have a similar problem where the gears will not engage fully on the downshift. MOstly from 2nd to 1st. But it started now with other gears also.. Not so much from 6th to 5th though..

At the robot...trying to go down from 2nd to 1st the dash display wont show 2nd, nor neutral nor 1st...just nothing..blank: If I then start releasing the clutch lever ever so slightly then the gear would engage.

I will also check the shifter linkage firstly...and from there assess if an oil change is needed also.

While the bike is parked...the shifter and whole mechanism is not very tight...and feels as if there are a lot of free play by hand... Is this normal?
Any other comments also welcome please?

Thanx

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2007 Kawasaki Ninja ZX6 R
1981 Honda CB 750 K (Original)
1980 Honda CX 500 (Being built into a Brat Bike)
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