I know this was 7+ years ago but thought I would chime in with this, MAKE SURE THE SPROCKETS ARE ON THE CORRECT WAY. For example the front sprocket if you noticed in the video you can see the outer side has a little lip at the splines on the counter shaft, on the opposite side of that same sprocket I will bet it’s smooth on the inside of the sprocket. Vortex does do that. Easiest way to do this is right before you take the OEM front sprocket off, measure it with a tape measure just the the outer face of the teeth, and then remember or mark it on the measuring device. Then when you go to put the new sprocket on, just slide it on and then measure it to make sure it’s the same as what the OEM Sprocket was. If you look at the front sprocket again while he’s putting the rider peg back on, you’ll see that the completely smooth side is out, and the lipped side is facing inwards. If you go back to when he first put the front sprocket on he put the lipped side facing out. And also make sure the rear sprocket is correct too. When you put the sprockets in and the chain make sure you look down the chain BEFORE you put the sprocket cover in, make sure the chain is perfectly straight and not veering off ever so slightly. It’ll save you from having a catastrophic failure and chain snapping or even save you from having to replace the output transmission shaft and gasket. I learned this because the first time I ever did sprockets and chain, I put the front sprocket on backwards and the chain was all bent and stupid loose like it looked and felt like it had 50k miles in it and only after 200 miles or so. So just be careful and PAY ATTENTION!

Really good video! Just the right amount of detail, very helpful, thanks!

Definitely a great tutorial and helped me swap out my sprockets as well. I must say that sprocket nut was extremely tight and a pain to get off. I would like to point out to anyone looking at your video, if they are replacing the chain they may want to go up 1 or 2 links in length for the 2013 ninja zx6r. Again great video much appreciated.

This is brilliant! I have a 2006 636 and the sprocket change has already been done (by someone else) but still good to see how it's done. After this I am off to watch your vid on the differences.

Thanks Slap! Doing this mod on my 2016 zx6 today. This vid is a huge help!

I’ve been thinking about this swap.

how many links is the chain?

I saw your video showing you removing the left pegs, just wondering what is the size of the bolts as I would like to remove my pegs to remove the chain guard

Hey man, I have the same bike as you and I like your vidos a lot, talkin from an engineering perspective, lots of noobs out there have no clou about using a torque wrenche and why. Anyway great job.. Do you plan to make a How To for the front and rear brakes? i think there are a lot of people interested in that one, would be great man. Greetings from Switzerland :)

How did you end up liking the -1 +2 i read some people having problems with traction control kicking on a lot easier. Is it worth doing?

I have a 16 zx6r what do you recommend for gearing . Mostly ridden In the city may drag race rarely

Great video man. Why the hell does kawi want the rear sprocket nuts replaced every time?? I put some Driven aftermarket black nuts on and they were like $50 there's no way I'm replacing them everytime I want a shiny new sprocket on..

Did you use a speedo healer since you changed sprockets

what type of boat was used to take out the front sprocket

So question lets say i have stock gearing now at 70mph in 6th is a 6500rpm. 80mph is 7800rpm so this means i would be wayyyyy high up in the rpms in 6th in highway cruising correct? And in the city with this setup you have to shift up more you said?

I bought this kit just wondering how you liked it over the years. Havnt installed it yet..would you do it again or keep stock gearing?

How did it impact the performance of this bike?

I bought a 2017 636 and since I have owned it the speedometer on the bike hasn’t worked. Rpm is fine but it won’t change milage it show me my speed. I replaced both front and rear speed sensor cables on the bike. Any idea what it could be. I also tried my buddies speedometer still same thing.

so does this give you more torque?

Hey, you seem like you know what you are on about! I've got an issue with my bike and appreciate if you'd reply. I got my local Kawasaki dealer to change the sprocket on the rear to +2. Since the change on very small minimal throttle position (about 10-20% throttle. e.g cruising in traffic) i get almost a studder like traction control is setting in from rev ranges 2.5k-4k rpm. This only happens in first and is then gone above these ranges. Its going into Kawasaki again tomorrow but they already had said they weren't sure what the issue was last time it was there when they completed the sprocket change. I've disconnected the speed sensors and it wont have the issue. But when they are connected it comes back. However, looking at the dash when this "studder" occurs no traction looks like its on (the bars that go from left to right). I look forward to your response.

How many Links did you put on it?

Nice job , but where is the link for adjusting the chain ?

Other side of the pond 😂🤣😅

If you dont replace the chain with sprocket, the sprockets will wear down faster. That chain guard is insane, having to take off the foot peg bracket partially is just too much extra work, First time doing it, I was like.. wtf really?