Keihin Carb Mystery Nipple! By randall (Read 439 times)

[randall]

Hi,
I have a recently purchased 2008 Helix clone Wildfire scooter with a CN250 and a Keihin carb. In going over the bike I noticed a nipple on the carb that isn't connected to anything. It's located adjacent to and under the starting enrichment device. Are they related? I've not found any docs that describe hose routing well for these bikes so I thought I'd ask and see if anyone knows what that's for.
Thanks for reading!

[richardthescooter2]

chech this out

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[randall]

Ah, lovely, thank you. Must be used for a carb heater, or Cali emissions, or something. Thanks again.

[Alleyoop]

Yes they were used to run hot radiator water through it, idea was to warm up the carb. Didn't work so good. As a matter of fact if it is tack on you can unscrew the screws and just take the whole little system off the carb.
Alleyoop