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Post subject: Chain clearance problem
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1966  Powerband Master Joined: 26 Aug 2007 Total posts: 613 Location: Pig on the wall country |
My LC with YPVS engine and KR1S front/rear,well i put the chain sprockets on and the chain is very close to the frame where the plate is for the swingarm pivot.
it's only about 3mm from touching 
The KR rear carrier was milled down by NK but don't know how much (update 6mm off rear carrier)
The front offset sprocket is 6mm and was told to use the YPVS collar behind the front sprocket which is 19mm.
The chain/tyre clearance at the back is about 8mm.
If i put the smaller LC collar behind the sprocket which is 5mm smaller
this moves the chain away from the frame but must throw the chain alignment out.
But this looks like the clearance i need.
Any clues as it has peeved me off big time today 
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Posted: Fri May 23, 2008 8:19 pm
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1966Powerband Master Joined: 26 Aug 2007 Total posts: 613 Location: Pig on the wall country |
I have been in touch with NK about this and he has offered to machine a few mm off the rear sprocket carrier and an equal amount off the collar from the front.
The big question is as my offset sprocket (front) is only 6mm but is to wide for my LC frame.
There are people running bigger offsets without clearance issues
What the blummin eck is going on
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Posted: Sun May 25, 2008 9:01 am
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1966Powerband Master Joined: 26 Aug 2007 Total posts: 613 Location: Pig on the wall country |
http://img155.imageshack.us/img155/7531/snoepics4312fh5.jpg
Bit close
http://img155.imageshack.us/img155/1239/snoepics430ni2.jpg
Looks better than it is,side plates look close but the rivets even closer
http://img155.imageshack.us/img155/7624/snoepics4282zm8.jpg
View from back,the chain appears straight and inline 
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Posted: Tue May 27, 2008 12:59 pm
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4l0 4ever Rear-wheel Steering! Joined: 05 Aug 2003 Total posts: 2760 Location: Dudley, West Midlands, United States of England. |
I would stick with the YPVS spacer and go back to a standard sprocket, then see if you can get the back wheel machined to suit. Will work out cheaper in the long run.
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Posted: Tue May 27, 2008 9:29 pm
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1966Powerband Master Joined: 26 Aug 2007 Total posts: 613 Location: Pig on the wall country |
Hello mate 
Do you mean the back wheel or the rear sprocket carrier ?
I have been told anymore off the carrier and it will weaken it too much
I'm thinking of buying a laser line chain alignment tool to double check
everything
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Posted: Wed May 28, 2008 6:30 am
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| beek |
Ive seen chains run as close to frame. not ideal but as long as its not rubbing and rides ok,
its also possible to gain a bit by machining rear sprocket only the part where it mounts a mm or two may be possible so may help if you are concirned.
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Posted: Wed May 28, 2008 8:11 am
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