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Willmrx
Posted on Thursday, January 12, 2017 - 11:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What grit and type of abrasive, is recommended for honing the 1125R cylinder?
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Stevel
Posted on Friday, January 13, 2017 - 01:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm not sure of the grits, but they are diamond based and not all automotive machine shops are capable of either boring or honing this Nicosil alloy. Honing must be performed on a Sunnen type honing machine and certainly never in a home shop environment.
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Stevel
Posted on Friday, January 13, 2017 - 01:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm not sure of the grits, but they are diamond based and not all automotive machine shops are capable of either boring or honing this Nicosil alloy. Honing must be performed on a Sunnen type honing machine and certainly never in a home shop environment.
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Willmrx
Posted on Friday, January 13, 2017 - 08:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

( Never in a home shop) Thanks for raining on my parade! I was hoping to just buy the hone and do it myself. Why is the 1125R cylinder so special? There is a video from Rocky Mountain ATV that states that you can hone a Nicosil (or is it Nikasil) cylinders.
https://www.rockymountainatvmc.com/rm-rider-exchan ge/hone-motorcycle-atv-engine-cylinder-flex-hone/

(Message edited by willmrx on January 13, 2017)

(Message edited by willmrx on January 13, 2017)
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Snacktoast
Posted on Friday, January 13, 2017 - 08:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Millennium Technologies might be able to help you with this.

http://www.millennium-tech.net/serviceInfo.php?id= 7
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651lance
Posted on Friday, January 13, 2017 - 09:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Are you deglazing the cylinders or over sizing?
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Willmrx
Posted on Friday, January 13, 2017 - 10:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Deglazing for new rings. You can still see the original hone mark after 50,000 miles.
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Firemanjim
Posted on Sunday, January 15, 2017 - 09:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can hone it but it just removes any foreign material that may be on the Nikasil. Nikasil has been aroung forever in dirtbikes and the Japanese streetbikes etc.
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Willmrx
Posted on Sunday, January 15, 2017 - 11:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks. I found in the service manual that you can hone the cylinders with a 240 grit hone. But it does not say what type of abrasive to use.
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651lance
Posted on Monday, January 16, 2017 - 12:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Only a ball hone or bar hone should be used to deglaze the cylinders.
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Willmrx
Posted on Monday, January 16, 2017 - 10:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Here's what I found. Flex Hones, makes ball hones specific for Nikasil cylinders.
http://www.enginehones.com/niapho.html

(Message edited by willmrx on January 16, 2017)
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