vacum caps

irish mike
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79 kz 650 b3 rat rod
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vacum caps

03 Feb 2010 17:46

its a simple [maybe stupid ]question but what size are the vacum cap that go on this bike-mikuni carbs[79 kz 650-i found that part of my problem was my vacum caps were starting to crack -so i went to auto zone and picked up some the same size[i thought] but after the bike warmed it got stuck on high idle -i noticed the caps when the bike gets hot are able to move up and down thus causing my vacum leak-i could always buy a variety pack but would like to know the correct size thanks mike''''

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Patton
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Re: vacum caps

03 Feb 2010 17:55

#346323

For consideration.

www.z1enterprises.com/detail.aspx?ID=444

Good Luck!

1973 Z1
KZ900 LTD

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MFolks
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Re: vacum caps

03 Feb 2010 20:19

#346346

The auto parts store's vinyl caps tend to harden after exposure to the alcohol/gas mix. Rubber is more forgiving but eventually needs replacement too.

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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OKC_Kent
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Re: vacum caps

04 Feb 2010 10:36

#346418

I think Wiredgeorge once said they were 7/32"

Oklahoma City, OK
78 KZ650 B2 82,000+ miles

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