To slide or not

The slide should be fine but the rubber diaphragm it's connect to should be inspected or replaced



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I'm not sure if it's offered as a unit or not, been a while since I've messed with a CV carb

Heres a link to the parts for a CV with the PN and prices, item 52 is what we're
discussing, also don't drill out the hole in the bottom of the slide to a larger hole which is an old "trick" to make the slide come up quicker, it generally ends up in causing a fluttering slide and shitty running bike.

If the rubber is in good condition, no rips or tears then just go with it
as is and clean up the carb.

http://cv-performance.com/harley-cv-carburetor-parts-diagram

They have a performance upgrade kit at CV

Sorry for the late reply, this one slipped by.

There are sellers (mostly ebay) that have the diaphragm separately but I don't recommend them. Many versions of the slide had glue inserted when the plastic plates were pressed around the rubber diaphragm making it near impossible to get a new diaphragm worked in between there.

As much as I'd like to sell you a new slide, unless your slide is damaged you really don't need to replace it. They can actually last a long time, and wear or damage usually comes from excessive overheating, multiple lean backfires, or damage during installation that compromises the edge of the soft diaphragm by way of pinching.