float bowl vent hose

[GS1000S]

I'm going through the carbs on my 1979 GS1000 and would like to replaces the four hoses on the float bowls with a black OEM style hose. Suzuki has discontinued this hose. Does anyone know of a source for after-market black hose in the proper OD/ID as the original was?




thanks, Pat

[Steve]

Parts Outlaw does not show them as discontinued, but they certainly aren't cheap.

The part number is 13683-45070, which indicates that it is a 4.5mm inside diameter. In American terms, that would be just under 3/16".

Oh, and just for clarification, those are not "vent" hoses, they are "overflow" hoses.

.

[bwringer]

Yup, showing available here, and listed as "5x8x450mm"

https://www.onlinecycleparts.com/oemparts/a/suz/50d40243f8700230d8b4e6ca/carburetor-gs1000n

You could also order up a hunka Viton or Buna-N tubing from McMaster-Carr. Buna-N is a helluva lot cheaper, and should be fine in this application.

https://www.mcmaster.com/#5119k83

https://www.mcmaster.com/#5235k44

They do not have 5mm ID, but they do have 3/16" ID X 5/16" ID, which is verrrrrrrrrrrry very close and will work fine and look absolutely factory.

3/16" is 4.76mm, and 5/16" is 7.94mm, both close enough no one would ever be able to tell.

You can probably get 3/16" tubing at a decent auto parts store, although I think most black rubber 3/16" ID tubing you'll find on the shelf is vacuum tubing with thicker walls. It might be used for windshield washer tubing.