CBR 900RR 1993 - 1999 Honda CBR 900RR

Help with o-ring replacement on carb T fitting.

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Old Jun 5, 2009 | 02:39 PM
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Default Help with o-ring replacement on carb T fitting.

Bike is a 94 900rr and it started leaking fuel from the T connection going into the right side of the carbs. I ordered o-rings to do both sides (not in yet), but can't figure how to get the fitting out! I called a local dealer and they said they would do it for an hours labor, should I just let them do it or am I missing something really simple. I have attached a pic.

 
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Old Jun 6, 2009 | 05:53 PM
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I did the same thing...except any fuel-grade O-rings that fit will work...no reason to 'order' them. Just go down to an auto parts store and get a package of assorted sizes.

The carb bank has two long pins that hold them together. That long silver 'tube' that runs through your red box is one of them. Take the nuts off one end and gently loosen and remove the pins.

Then all you have to do is gently pull each outside carb away from the middle two. One at a time. Then remove the T-joint and replace the two O-rings.
 
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Old Jun 6, 2009 | 06:45 PM
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Exactly what Spirit said ... very simple to do. A small dab of oil to lube the o-rings will keep them from binding up or pinching when reassembling.
 
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Old Jun 7, 2009 | 08:02 PM
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Thanks guys! I already got bent over for the O-Rings just over $40 (can't refund special order), should have waited and went to PEP Boys.
 
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Old Jul 19, 2017 | 10:32 AM
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Sorry for the bump. I need these same o rings. Anybody know the size of them? My quickest solution would be to go buy fuel rated o rings from a local shop, but I'm not sure what size I need. Honda dealer can't/won't tell me.
 

Last edited by Bmor89; Jul 19, 2017 at 10:47 AM.
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Old Jul 19, 2017 | 07:15 PM
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If you can get the O-ring off, it can be easily measured using a 3 way caliper.
3 way calipers can easily be bought for only a dollar on eBay.
I use my calipers to measure hundreds of things--probably my most used tool.
As far as O-rings, you measure the inside diameter, then measure the thickness of the O-ring
In case the O-ring has shrunken and dried out, you could measure where the inside diameter of the O-ring would be on the application.
 
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Old Aug 5, 2017 | 04:42 PM
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Originally Posted by chainstretcher
Exactly what Spirit said ... very simple to do. A small dab of oil to lube the o-rings will keep them from binding up or pinching when reassembling.
I also like to use vaseline to lube up my o-rings. Clean motor oil works too but make sure you never use old/used oil!
 
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