Thread: sprocket problems
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#1 sprocket problems12-24-2010, 05:57 AM
I have been getting some online help but struggling hard to fit the new 36t sprocket on the Kinlon R/T 200 rear. Lots of fun getting the circlip off and breaking the chain without proper tools but finally got there.
Then bugger me if the new sprocket doesn't wobble!
I think the buffer cushions are OK as after a lot of work I put the old sprocket back - and it doesn't wobble. So my reckoning is that the new sprocket doesn't sit tight against the spring clip which holds it back to the hub. Like many, this sprocket has four through bolts that have threadless rear shafts that sit into rubber mounted sockets. number 14 on the diagram below.
I can't imagine making or finding a safe shim to squeeze the new, slightly thinner, sprocket against the circlip/springclip. All I can think of to hold it tight is to put washers between the sprocket bolts and the buffer cushions.
Do you mechanically experienced types reckon this would work and be safe? XXX if you are still about .... HELP. What did you do?
rear wheel.jpg
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#2 Re: sprocket problems
- Join Date
- Nov 2009
- Posts
- 67
12-24-2010, 12:48 PMAssuming that the center hole in the sprocket is the correct size to fit over the hub without a lot of slop it would mean the sprocket itself is too thin. In that case I would get a piece of sheet metal and make a shim/spacer to fit between the sprocket and the hub or between the circlip and the sprocket.
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#3 Re: sprocket problems12-24-2010, 01:12 PM
jape,
Fun huh? Could the sprocket be wrong? Maybe thin washers on both sides of the sprocket to keep it centered? Damn if I know.Vince
2021 Ural cT
2022 Dong Fang DF250RTG
2021 Ice Bear 150cc scooter
2020 Ice Bear 150cc Scooter
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#4 Re: sprocket problems12-24-2010, 04:48 PM
I'm with hugemoth. If you have calipers, measure the difference in thickness between the two sprockets and make a shim to line everything up. Check out Forchetto's post about the sprocket bolts to alleviate any worries.
http://www.mychinamoto.com/forums/sh...ighlight=bolts
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#5 Re: sprocket problems01-03-2011, 04:01 AM
In the end I went with the washers as I don't have tools or materials handy to make a shim. I found the right size washers quite easily in my 'one day' pile of bent bolts and bits and pieces. They fitted the bolt shaft tightly and settled into the buffer cushion sockets in the hub, well. This bike doesn't have simple bolts, it has bolts that have a center 'plate' or whatever you would call it that fits below the threads and locates to one side of the sprocket while the nut sits on the other. Then below the plate thing (like a washer welded on halfway down), the sprocket bolt shaft is not threaded and suts tight into the buffer cushion socket ... lol, follow that if you can. I ahve done fifty miles and all is tight still.
Kinlon R/T KBR JL200GY-2
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#6 Re: sprocket problems
- Join Date
- Dec 2010
- Location
- Australia
- Posts
- 8
01-21-2011, 09:41 PMG’day mate, just wondering how many (in mm’s) worth of washers did you end up using. When we took sprocket off the other day we noticed the difference in the offset style sprocket OEM and the aftermarket (more straight) was around 11mm’s odd. This is a bucket load of washers. Just wondering how your R/T model worked out?
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