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Old August 31st, 2022, 01:27 PM   #4
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T EX250F-street Ninja250R-race CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR VFR750F

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
No you got it. Functionally same:

1. TWO vacuum ports, one on each carb
2. one port goes to petcock
3. one port goes to coast-enricher
4. one has T for CA emissions under tank

You can put T on any vacuum hose. It's better to have configuration above with dedicated hose just to petcock alone. That ensures most vacuum for petcock without any interference from other devices sharing vaccum hose. If you end up with vacuum leak from cracked hoses or plastic nipples, it'll only affect coast-enricher and not cut off your fuel-petcock as well.
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