[Zed X Ten]

Try using a longer link pipe, or remap the bike to take care of fueling at low load.

^^This definitely helped my throttle/surging issues when I was trying different 3/4 system exhausts for my Gen V. The shorter the link pipe/muffler the surging and jerkiness was more prominent, especially when I owned the SC Project CRT setup. However when I changed over to the Akra link pipe w/the Akra "long" exhaust my bike ran just as smooth as it did when the bike had the cat and stock exhaust installed. I no longer own either of these setups since I'm running a Brocks Predator 3/4 system and guess what.....there's surging to a certain degree, however not as bad as it was when I owned the SC CRT.

 

[Zed X Ten]

Was your bike tuned?

Yes it was.

 

[Zed X Ten]

A little richer at idle a little leaner maybe? You can do that at home with a tuner software. Surging while driving is another issue.

I've read that going richer at idle on the IAP map fixes the issue.

There's a thread addressing this very issue, outlining the exact RPM/Throttle range in the IAP map to add fuel.

 

[Zed X Ten]

Any idea where I can find this thread? been looking and I cannot seem to find anything

Edit: here is the thread for anyone wondering Gen 5: 2016-20 - Lurching while cruising

That's the one.