Yes... It is damn tight & nothing of that sort between them. But, now I found out that it's normal & some new bikes here also have that slight playThat sounds like the sprocket is not fully flat against the coupler, like something is between the sprocket and one of the four cast bosses, like one washer on a stud. Make sure the nuts that hold the sprocket to the coupler are tight on the studs.
Thank you so much for your lengthened explanation about this... But, in my opinion, it seems likely better to replace the whole rubber cushes instead of that idea. Anyways, it worksOk, if you have no lateral or up/down play, then sprocket-carrier bearing is Ok. Like #2 & 3 video I show above, there is play in rotation direction. This means the cush-drive rubbers have shrunk with age and opened up gaps. This causes clunking noises when letting off & on throttle with jerking. Some bikes come with brand-new cush-rubbers that's too small and has this gap from beginning. Solution is to shim cush-rubbers to remove gap.
Some people have had issues with these spacers squeezing out. I prefer to place shims just on back side of cush-rubber sections so they are not squeezed under power. Only under off-throttle engine-braking.
It is but it's a good "patch" while you wait or search for parts and find time to do it correctly.Yes... It is damn tight & nothing of that sort between them. But, now I found out that it's normal & some new bikes here also have that slight play
Thank you so much for your lengthened explanation about this... But, in my opinion, it seems likely better to replace the whole rubber cushes instead of that idea. Anyways, it works
YeahIt is but it's a good "patch" while you wait or search for parts and find time to do it correctly.
Sure. It may be case similar to Ninja 250 that even with new rubbers, there's still gap that causes excessive movement. How much rotational play is there? You can see on Ninja 250 video, there's about 2-3 degrees free rotation. After shimming, none.Yes... It is damn tight & nothing of that sort between them. But, now I found out that it's normal & some new bikes here also have that slight play
Thank you so much for your lengthened explanation about this... But, in my opinion, it seems likely better to replace the whole rubber cushes instead of that idea. Anyways, it works
When I picture 'wobbly', I think that when you watch one spot of the sprocket and rotate the wheel, that spot appears to move closer then farther from the wheel, indicating the sprocket is not truly flat to the wheel. Is that what you mean?
[/QUOTE
Yes, exactly it is.
Yes... Almost about 2-3 degreesSure. It may be case similar to Ninja 250 that even with new rubbers, there's still gap that causes excessive movement. How much rotational play is there? You can see on Ninja 250 video, there's about 2-3 degrees free rotation. After shimming, none.
Yes, I will surely check them as per your advice & get back to you.If it both wobbles per my description AND rotates as in the Ninja video, the rubber in the cushion needs fixing, because that wobble will wear out the bearing that I now know is in there, as well as shock the transmission through the chain. You will want to check the bearing for too much free play while you have it apart - I'd just replace it along with the rubber repair.
