That's an interesting one. Does that HJ not have a charcoal canister? The larger diameter hose is attached at one end to the canister, t-piece at the PCV and then to the carby base plate on mine (TH400).
IMG_1435.jpgIMG_1436.jpg
Found these in the HJ supplement, apologies for the photos on their sides.... Will scan and post them if someone needs them.
Dave.
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