Any chance of using JB Weld?

ANy chance of a photograph?

My old Honda came with the new, non OEM fuel tap which might have been from a later model.   I assume the  original had started to leak. Is there a possibility of just changing the fuel cock for one from a later bike.

Araldite rapid is reasonably resistant to petrol and ethanol. Assuming you are using it primarily as a sealant rather than as a structural adhesive it will work OK for your application.

However if you need to get sealant into a narrow joint that has come loose but cannot be dissassembled fully I’d suggest Loctite 270. This is thin enough to gat into a joint and if fuel and ethanol resistant.
https://docs.rs-online.com/b036/0900766b80076b82.pdf

Robert.

Edit I was typing when photo posted. Definetely a job for loctite . 270 or 641

577 may be a bit thick if the parts are a close fit.
If you have an activator its worth using it on these light alloy parts.

Robert.

On 12 May 2025 at 15:36 Fulmen Said:

My ol’ Suzuki has developed a leak in the fuel cock. The hose nipples are fixed to the main body with a cylindrical fitting that has become loose over time.  There isn’t any signs of sealants or gaskets so I’m assuming it was originally just press fit, but obviously that’s no longer good enough. The material seems to be zinc based, new or even used replacements are unobtanium, so I have to work with what I’ve got.

I’m thinking epoxy but perhaps there are better products available for a reasonable cost?

No mainstream manufacturer would design or make a fuel fitting as a press fit.

Try this website for legacy Suzuki parts.

https://www.classicsuzukiparts.nl/en#

Or this site for good used parts.

https://www.baboon.eu/en/parts

Forget the “baboon” name it was originally “boonstra” but suffered from an attack of “web marketing”

I have had used stuff from them and it’s top class,  set of 4 nearly new throttle bodies for a Yamaha FJR 1300 for €70 ain’t too shabby, what you see on the website image they will ship it to you, they are dead straight.