Carb fuel leak.

[Scythe92]

After the last two days out, I've noticed a small smell of fuel in my garage after putting my bike away.

Whipped the airbox off and had a feel round the carbs, the area which has fuel on it is opposite the carb cover, see red circled below. Sorry for the small pic, I took it off an ebay auction.

http://s10.postimage.org/w4qm0e445/carb.jpg (http://postimage.org/image/w4qm0e445/)

What is this part called? Will a simple strip and rebuild of carbs sort it, or is there a type of seal there that will need replacing?

I want to nip it in the bud asap before it gets any worse, right now it's only a slight drip of fuel.

[Sid Squid]

Picture is too small to tell exactly, got a bigger one?

[m1tch_1987]

Gasket 14? Should be the float bowl gasket?

http://www.powersportsplus.com/images/diagrams/suzuki/08/08/0010.png

You might be able to temporarily seal it with some black silicone sealent (the one that is heat and fuel safe) the SV carbs and float bowls are at an angle due to the V twin layout so I guess that the gasket has just got old and has started leaking, you might even be able to make your own with some gasket material.

[Sid Squid]

I've never seen a properly fitted 'O' ring there leak*, the float bowl could be loose, or the same could be true of the drain screw.

Need a more specific picture or description of fault to be sure.

*It could have been fitted arsewise or course, it could be pinched or not fitted in the groove correctly

[Nicky S]

It could also be the black pipe ? As that is what feeds the carb with fuel. Check the clip and make sure the pipe is not ripped or broken.

If the gasket leaked woudnt the bike run like a dog ???

[m1tch_1987]

It could also be the black pipe ? As that is what feeds the carb with fuel. Check the clip and make sure the pipe is not ripped or broken.

If the gasket leaked woudnt the bike run like a dog ???

If its the float bowl gasket than it would just keep pumping fuel in to bowl as it drops below the required level but yeah I would check the fuel pipe and clamp as well, the clips are fairly exposed so can corrode.

[Scythe92]

Fuel line is fine, I reseated it earlier to check. It is directly below the fuel line for the rear carb if anyone is familiar with it. I'll try to find a larger pic on google.

The bike has never had a problem until two days ago, you can smell it after a ride when my bike is in my garage approx 30 mins after I get home. It's a tiny leak right now, talking about 2 drops of fuel.

Yes m1tch it looks in a similar position to the float bowl gasket! I thought it might have been a gasket of some sort. I work during the day until 5 but I'll try to strip them down in the next few days. Can you buy a float bowl gasket from any suzuki dealer - a couple of pence I imagine?

The bike is also running fine too

[m1tch_1987]

I will take a photo of my carbs tomorrow as there don't seem to be that many detailed photos of the carbs close up, as its a japanese part its probably a million pounds lol

[Scythe92]

I've found a carb rebuild kit on wemoto for £20, containing the gasket, o-rings and floats etc. Bit annoying because I only need a gasket if diagnosis is correct.

[Sid Squid]

Guessing can be expensive, get it apart and find out exactly what is leaking.

[m1tch_1987]

Guessing can be expensive, get it apart and find out exactly what is leaking.

Especially if its fuel related when its above a hot engine and next to electrical cables!

[Destruktor77]

I had this exact problem about a month ago. I had new gaskets, got them blasted clean, new drain screw, checked all fuel lines, check tank and still leaked.

Bought a working set of carbsand it didn't leak, then after the next 2 checks still leaked..........

Then after some carb cleaner in the tank and a good shake around they stopped. I'm adament that it was something blocking the carb and causing it to overflow and possible leak from there.

[Scythe92]

I had this exact problem about a month ago. I had new gaskets, got them blasted clean, new drain screw, checked all fuel lines, check tank and still leaked.

Bought a working set of carbsand it didn't leak, then after the next 2 checks still leaked..........

Then after some carb cleaner in the tank and a good shake around they stopped. I'm adament that it was something blocking the carb and causing it to overflow and possible leak from there.

Possibly, I'm gonna try to strip it down sometime over the next few days to have a look

[Nicky S]

I have a set of smashed up carbs in my garage so I'll take some pics and you can say what bit it is :)

[Nicky S]

sorry so late with the pics

http://img.tapatalk.com/d/12/10/07/epy5a4ej.jpg

http://img.tapatalk.com/d/12/10/07/ru5ajasu.jpg

http://img.tapatalk.com/d/12/10/07/e2yga3ah.jpg

http://img.tapatalk.com/d/12/10/07/3ysy9a2y.jpg

http://img.tapatalk.com/d/12/10/07/pa7anygy.jpg

[gjscott]

My 2002 SV650 has been sitting for 18 months and I've been starting and warming it up once and month. This evening I start it up and a lot of fuel is leaking from one of the pair of drain hoses between the carbs when the engine running.
The hose comes from near the top of the carb where the diaphragm is.

Is this a float bowl overflow?

http://i35.photobucket.com/albums/d177/grahamsn/carburetorlines.jpg