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Author Topic: 750F ring thickness - Updated  (Read 1818 times)

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Offline cmonSTART

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750F ring thickness - Updated
« on: May 02, 2012, 03:22:15 PM »
Hi Folks,

I'm shopping for top end options on my 78F.  The rings I removed measured as follows: 

Top:  1.17mm
Middle:  1.13mm
Book thickness is a bit more.

I've seen on fleaBay someone selling the 392 rings as fitting the 78, but if someone has a set of 392 rings on the bench and a caliper nearby, I would appreciate it if they could just confirm the thickness of the top and second rings. 

Thanks again folks.  I did do a search.  I just want to confirm something. 
« Last Edit: May 11, 2012, 11:44:12 AM by cmonSTART »
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1981 GL1100 Interstate
1978 CB750F Project

Offline KRONUS0100

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Re: 750F ring thickness - confirmation please.
« Reply #1 on: May 02, 2012, 04:21:09 PM »
the rings for the 2cd half of 76 F models will fit and work.  the first half the thicker rings, midyear they changed to the thinner ones.
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MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E

Offline KRONUS0100

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Re: 750F ring thickness - confirmation please.
« Reply #2 on: May 02, 2012, 04:23:38 PM »
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MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E

Offline cmonSTART

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Re: 750F ring thickness - confirmation please.
« Reply #3 on: May 02, 2012, 05:26:51 PM »
Ok, so there were only the two ring sets used in the F models, of which I need the latter.  I guess I'll spring for a set of the 13011-392-004 rings and see how it goes. 

Thanks!
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1981 GL1100 Interstate
1978 CB750F Project

Offline KRONUS0100

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Re: 750F ring thickness - confirmation please.
« Reply #4 on: May 02, 2012, 05:35:20 PM »
yep..looking at set on ebay now for 90 bucks for my 78 F3 motor.
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MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: 750F ring thickness - confirmation please.
« Reply #5 on: May 03, 2012, 12:55:41 PM »
-392 are correct. Honda switched from the -300 rings late in the 76 F model year as mentioned. If you can find a SET for $90 you'd better grab them quickly! Good investment at the least.
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline cmonSTART

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Re: 750F ring thickness - confirmation please.
« Reply #6 on: May 03, 2012, 01:00:00 PM »
Ignore that set on fleaBay!  You see nothing!
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1981 GL1100 Interstate
1978 CB750F Project

Offline cmonSTART

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Re: 750F ring thickness - confirmation please.
« Reply #7 on: May 04, 2012, 10:11:27 AM »
And $92 later I have a set of rings on the way!
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1981 GL1100 Interstate
1978 CB750F Project

Offline cmonSTART

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Re: 750F ring thickness - Updated
« Reply #8 on: May 11, 2012, 11:46:35 AM »
I just received my rings and they measure as they should.  1.18 to 1.2mm thick.  So, I guess the 392 rings do work.  This set was on eBay for $92.00. 

« Last Edit: May 11, 2012, 11:51:04 AM by cmonSTART »
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1981 GL1100 Interstate
1978 CB750F Project

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 14,930
  • Bought her new 4/75
Re: 750F ring thickness - Updated
« Reply #9 on: May 11, 2012, 12:16:39 PM »
Dude you gotta post a link to this guy now that you have your's!
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline cmonSTART

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Re: 750F ring thickness - Updated
« Reply #10 on: May 11, 2012, 12:23:17 PM »
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1981 GL1100 Interstate
1978 CB750F Project
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