Leaky Carburetor - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

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post #1 of 25 Old 02-19-2009, 8:34 PM Thread Starter
 
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Leaky Carburetor

Hey my carb is leaking gas and im not to sure why, I have a 1999 900rr,
i see where its coming from, and its dripping from a hose that leads directly from the 2nd carb from the left of the bike as if your sittin on it. I have the gas dripping in a pan right now but i was curious if this hose attaches to anything.. any help please!!
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post #2 of 25 Old 02-19-2009, 10:43 PM
 
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Re: Leaky Carburetor

maybe the overflow hose...look at the end of it and see if it looks like it's flared out at the end like it would have been connected to something, if not, and it's probably the overflow which is an indication of a possibly sticking float or float valve.

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post #3 of 25 Old 02-19-2009, 11:21 PM Thread Starter
 
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Re: Leaky Carburetor

it looks like an overflow, but when the bike is running its breathing in.. but it does have pinching ring like indents which makes me wonder is it was connected to something
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post #4 of 25 Old 02-20-2009, 12:52 AM
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Re: Leaky Carburetor

Where does it attach to the carb exactly?
If it's actually attached to the intake manifold then it's a vacuum line.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #5 of 25 Old 02-20-2009, 7:39 AM Thread Starter
 
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Re: Leaky Carburetor

its attached on the 2nd from the left carb (as if your sittin on the bike), and right above it is the float bowl, the line comes right out and hangs down, i can see imprints which looks like a clamp was on it, but its not there, im curious where to attach this line, i just cleaned out the entire carb and have no clue where this goes
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post #6 of 25 Old 02-20-2009, 7:42 AM
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Re: Leaky Carburetor

If it's on the bottom of the float bowl then it is an overflow hose.
The reason they leak is the needle and seat is worn.
If it's sucking though the float bowl must be totally dry.
Does the bike run okay?
Is the header on #2 the same temp as the others?

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #7 of 25 Old 02-20-2009, 7:49 AM Thread Starter
 
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Re: Leaky Carburetor

the bike does run fine, whats throwing me off is that its the only tube under a float bowl, none of the others has it just this one. im sorry im not to mechanically educated whats a header.. i feel stupid lol
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post #8 of 25 Old 02-20-2009, 7:52 AM
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Re: Leaky Carburetor

It's not unusual to remove them as they're really only useful to drain the bowls for storage.
Do you mean only #2 has provision for this tube?
The header is the top part of the exhaust system that attaches to the cylinder head. The four seperate headers extend as far as the collector where the pipes meet.

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Last edited by bladeracer; 02-20-2009 at 8:46 AM.
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post #9 of 25 Old 02-20-2009, 7:56 AM Thread Starter
 
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Re: Leaky Carburetor

yeah only number 2, im not to sure why, thats why i dont think its not an overflow, im most likely wrong though, i took a few pictures and a vid, lemme try to post em with links if you can look at em
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post #10 of 25 Old 02-20-2009, 8:01 AM Thread Starter
 
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Re: Leaky Carburetor

this is a picture of the leaky tube

Leaky tube picture by thrusticus - Photobucket
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post #11 of 25 Old 02-20-2009, 8:03 AM Thread Starter
 
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Re: Leaky Carburetor

and heres a video of where it goes, sorry bad quality its off my phone

YouTube - 0220090752
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post #12 of 25 Old 02-20-2009, 8:10 AM
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Re: Leaky Carburetor

Seeing the other end of the hose would be more useful :-)

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post #13 of 25 Old 02-20-2009, 8:15 AM Thread Starter
 
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Re: Leaky Carburetor

alright one sec. its hard to get to cause the tank is on
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post #14 of 25 Old 02-20-2009, 8:27 AM Thread Starter
 
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Re: Leaky Carburetor

i hope this helps

where the hose goes picture by thrusticus - Photobucket
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post #15 of 25 Old 02-20-2009, 8:28 AM
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Re: Leaky Carburetor

Well, it's got nothing to do with the carbs then.
It is either a vacuum line or a coolant hose.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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