generic "carb rubber" source?

[yackee]

Not a Guzzi-specific question, but with some potential Guzzi relevance. What's the standard term for what I would call "carb rubber", meaning the rubber tube that mates the side-draft carb to the manifold on the inlet side of a cylinder, with the help of large hose clamps? And who offers generic carb rubber in different diameters and in different lengths? The second question is my main question. I've Googled etc, but can't find what surely must exist.

The project in question is a Vespa with a sidedraft Dell'orto carb, and I managed OK with a piece of rubber household plumbing from the local Ace, which lasted a few years without cracking, but there must be a more appropriate product/source out there.

[mtiberio]

Back when I was racing and we used to have custom manifolds and big carbs the hot lick for making manifold to carb rubber sleeves was to use gas tank filler neck hose by BF Goodrich.

[mtiberio]

I see Dayco makes some now. Don't go for pre-formed cut to fit hose. You can get generic straight in 4' or 5' lengths. Some places sell by the inch. Just know what ID you need and match it. Did you try McMaster-Carr?

[lucky phil]

Not a Guzzi-specific question, but with some potential Guzzi relevance. What's the standard term for what I would call "carb rubber", meaning the rubber tube that mates the side-draft carb to the manifold on the inlet side of a cylinder, with the help of large hose clamps? And who offers generic carb rubber in different diameters and in different lengths? The second question is my main question. I've Googled etc, but can't find what surely must exist.

The project in question is a Vespa with a sidedraft Dell'orto carb, and I managed OK with a piece of rubber household plumbing from the local Ace, which lasted a few years without cracking, but there must be a more appropriate product/source out there.

I "think" you can use Polyurethane for the application. It comes in a 2 part liquid mix and you can specify the "shore" or hardness you require. So if you can cast or make a mould from an original piece OR mould your own design you can simply cast your own. My friend used it to make "connector boots" for the large ecu connectors on the custom wiring looms he used to make when he made conversions for bikes to run Motec ecu's. It is petroleum resistant depending on temperatures.

Ciao   

[Murray]

Copper wire reinforced fuel delivery hose can be cut with a stanley knife, strong enough to support the weight of something like a Klein 41FCR.

[Antietam Classic Cycle]

Not a Guzzi-specific question, but with some potential Guzzi relevance. What's the standard term for what I would call "carb rubber", meaning the rubber tube that mates the side-draft carb to the manifold on the inlet side of a cylinder, with the help of large hose clamps? And who offers generic carb rubber in different diameters and in different lengths? The second question is my main question. I've Googled etc, but can't find what surely must exist.

The project in question is a Vespa with a sidedraft Dell'orto carb, and I managed OK with a piece of rubber household plumbing from the local Ace, which lasted a few years without cracking, but there must be a more appropriate product/source out there.

Lots of choices on Amazon and ebay. For example:
https://www.amazon.com/LETAOSK-Manifold-Interface-Motorcycle-Carburetor/dp/B07Z3HJDCB

[larrys]

Marine fuel filler pipe hose might be an option. USCG approved!
Larry