fuel leak...how do i fix this?

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txbadboy · #1 Unread post by **txbadboy** » Sat Jul 16, 2005 4:48 pm

two carburetors. the main fuel line from the petcock leads to a brass line that forms a T which then feeds the two carbs. where this T meets the carbs, thats where the leak has started. i had the carbs bolted together still as i was taking them apart and cleaning them out, so nothing could have changed its position...possibly so much gunk was keeping it from leaking, and i cleaned it out? theres no nuts to tighten it, so what needs to be done to fix this? do i need to separate the carbs and install new o-rings maybe between the line and carb at each end? anyone know how this leak is fixed?? thanks guys.

p.s. - at least she runs alot better now. clean carbs.

TechTMW · #2 Unread post by **TechTMW** » Sat Jul 16, 2005 7:22 pm

Keihan carbs i think ... probably is an o-ring there. Carb cleaner eats the rubber these things are made out of. I don't think there's a fix other than to get new o-rings!

txbadboy · #3 Unread post by **txbadboy** » Sat Jul 16, 2005 8:53 pm

yeah theyre keihin, the stock oem's (im assuming)...yeah o-rings seem to be the most likely suspect. i was considering just squirting some gasket maker around the edges and calling it good enough..think this would work? i REALLY dont wanna take those carbs out again, lol. (or if not gasket maker, some sort of molding agent to withstand petroleum byproducts)

Gummiente · Sat Jul 16, 2005 11:40 pm

txbadboy wrote:some sort of molding agent to withstand petroleum byproducts

There's a yellow tube of goop called "Seal-All" that will work. I used it on a gas tank on an old Chevette once and on a few of my older bikes to plug leaks in the fuel system. It will harden even if gas is still dripping/leaking out of the hole, so I think it should work if you just want to smear it around the t-fitting in your carbs. Word of warning - it will be hard to separate them when you do finally get around to doing a proper fix; the stuff acts like a contact cement as well as a sealer.

There's also something called "Fuel Tank Fix" or something like that; it looks like a large licorice roll - grey on the outside, black on the inside. You tear a piece of and rub it between your fingers to cause a reaction between the two colours, they combine to form a thich paste that you then wedge into place to stop a leak.

Both products should be found in any auto parts store.