CB350F a couple of easy questions

[mike the bike]

Plastic doofer =17271611010  breather chamber.  Its supposedly a device, not fitted to 350fours, to decrease harmful emissions.  They obviously don't work otherwise VW would be using them.

[Bullit]

That's it Roy. Could have sworn mine joined together at some point though.

Like the VW pun there Mike 👍

[royhall]

Job done. Just fitted the new breather pipe on the bottom of the plenum chamber. Turns out it has a little air filter element fitted at the top so it doesn't matter if it sucks air in via the breather/drain. Clever stuff, that's another for the knackered old memory to retain.

[Gixxer-18]

If it helps this is my breather tube, the outer sleeve is hard and brittle but this was how it was fitted to my bike, I haven't removed it yet as it will be destroyed when I split the crankcases tomorrow.
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HTH
NIGEL.

[royhall]

Cheers for that and welcome to the forum. I assume from the name you also have a Suzuki. That's exactly how mine has gone back.