Re: Unknown bikcycle engine part
While the purpose is similar, the CNS doesn't have a choke and it doesn't restrict air to make the air/fuel mix richer - it has an enrichment circuit. When the "shifter lever" pictured is engaged (tightening the cable) it pulls open a secondary fuel supply & makes the mix richer w/o air restriction to aid cold starts.
A slightly more precise method of enrichment, if a little more complex.
I would suggest seeing how well/poorly it runs before you bother trying to mess with the settings BTW
Last edited by BarelyAWake; 04-21-2012 at 12:28 PM.