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Old 04-21-2012, 12:25 PM
BarelyAWake's Avatar
BarelyAWake BarelyAWake is offline
Motorized Bicycle Elite Member
Join Date: Jul 2009
Location: Maine
Posts: 7,212
Default 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.
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