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Old 04-21-2014, 03:29 PM   #1
hoodun OP
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Joined: Jun 2012
Location: San Francisco, CA
Oddometer: 127
Undertank Master Cylinder Rebuild Kit

I noticed there is a 14mm single kit for the 74-75 and one for 76-80.
http://www.motobins.co.uk/displayfin...UL+KITS&model=

I have a 75 bike but I have the kit for the 76-80. Is this going to be a problem? Does anyone know the difference. The bore size is the same.
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Old 04-21-2014, 03:35 PM   #2
bmweuro
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Location: Chico, California
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Quote:
Originally Posted by hoodun View Post
I noticed there is a 14mm single kit for the 74-75 and one for 76-80.
http://www.motobins.co.uk/displayfin...UL+KITS&model=

I have a 75 bike but I have the kit for the 76-80. Is this going to be a problem? Does anyone know the difference. The bore size is the same.
The way the reservoir attaches is the biggest difference.
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Old Today, 12:07 AM   #3
RagerToo
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76-80 is supposed to be 17mm. Dual discs.

According to Max's http://www.maxbmwmotorcycles.com/fic...7&rnd=04302013

Another question for mine. I need a new reservoir gasket for my undertank. Should I just cut one from some neoprene roofing material? Cripes, they want US$40.00 for the gasket that comes with a new cap + accouterments. ;-)
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