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The '12 motor/trans I had was a bit hard shifting, e.g. took effort to change gears and wasn't very smooth. The '16 motor/trans installed 2.5 years ago is even worst. As a matter of fact it shifts so hard that you couldn't ride it with a pair of tennis shoes on, takes just too much effort. I've ridden other K bikes and their trans shifted very smoothly. My local dealer doesn't offer to much help, e.g. yes it shifts hard but it's a positive shift. I'm contemplating taking the trans to a gear specialists. I've found one I trust in NC. But it's gonna cost... Anyone else having very hard shifting problems? Ever find a remedy?

Duane
 

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If your oil level is low it'll shift hard. If the clutch isn't fully releasing it'll shift hard, sticky clutch plates can be a culprit. Try using a quality oil like AMSOIL. I use the 10-40 motorcycle oil and never have a problem. Makes the motor run quieter and the transmission shift smoother and easier. Good luck finding the solution .....................
 

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The '12 motor/trans I had was a bit hard shifting, e.g. took effort to change gears and wasn't very smooth. The '16 motor/trans installed 2.5 years ago is even worst.
Well. Your problem is consistent from one engine/trans to another. Gotta eliminate the variable. Unless you have a linkage problem then I would agree that oil brand or viscosity might be worth a closer look. I too have a 2012 and don't experience what you describe.

Joe
 

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@Gunnert I imagine you already know of the practice of preloading the shifter with some force before you pull in the clutch? This is something I learned years ago to help the R bike "clunking" between gears. I still do it today with the K bike. I have noticed when she was new I had to push a bit harder, so I preloaded more.

By pre-loading I mean rather than banging the shift I nudge it.
 

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I would tend to think that if the stiff shift issue has persisted through two engine/transmissions and in fact has gotten worse with the second and over time, there would be a good chance the issue is tied to the clutch/ clutch hydraulic system.
 

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If the clutch separation is suspicious as a cause of hard shifting, you should have a heavy clonk with a very noticeable lurch forward when engaging 1st gear. If not I would eliminate any clutch related cause. Is it hard shifting up and down? Same with prolonged disengagement of the clutch (slow folks shift mode)?
 

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Discussion Starter #13
Not the clutch. Shifting hard up and down. Shop I'm talking with 'thinks' it could be a problem with the shifting forks.

Duane
 

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Shop I'm talking with 'thinks' it could be a problem with the shifting forks
Logically, if the shift pedal and linkage are all free and its not a dragging clutch, then it has to an issue with the selector scroll cam and / or shifting forks or (less likely) the selector sleeves binding on the shafts. Only way to find out is to pull it apart :(
 

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Duane,
If you have Don's short shift kit then that is probably what is causing the hard shift. I had it on my 2012 and noticed harder shift pressure but lived with it. When I got my 2016 I noticed the shift arm was a little shorter. I put Don's short shift kit on anyway. After a few weeks I really didn't like the hard shift pressure so I removed Don's short shift kit. It shifts a lot easier and makes up for the little longer shift stroke.

If you like the short shift kit make sure it isn't hitting the engine somewhere when it gets to the end of a stroke. It was when I put it on my 2016 bike and I had to adjust the linkage or move the arm to a different spline, I can't remember which, so that there was no restriction.
 

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Duane, I had issues with Don's short throw kit when I first installed it, too. Not the kit, the installation of it. The kit is an awesome piece of engineering. Once I took a closer look at the set up, I could see where the long rod had slightly twisted causing both ends to bind. Fortunately, my hard shifting started right after installing the kit, so I knew it was related to that. I would agree that your oil is definitely not the problem!:)
 
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