[Justin20]

I have recently purchased a 2012 ltz400 with 434 big bore, hmf exaust, kN high flow air filter, and a wiseco fuel programmer. Can someone please give me a base setting for the fuel controller or a setting that works for them with comparable add ons

 

[cwright2006ltz]

I would play with all of the different one since most of us on here have the earlier carbed model. If on my carbed model with almost the same upgrades + cams and fcr I have a 165 jet in so if there was a setting equivalent to that I would start there.