Nibbi Carb Tuning

[mobius]

I have PWK 28 . on a 2500cc Pentora sport ATV. It was great until IN MY finitre wisdom I thought I could get the last little uhhhuhh. UhhhhUhh nope. What I learned is if it works for you leave it BE..SMH .
I live in S Texas. What is the jet make up for us?
All of it matters , elevation, humidity, hot /cold climate
What is the base line for jetting in S Texas?


Update,,,,,,,
Started by setting the idle screw 2 turns out, ended at 1 1/4 turns out
Fuel air screw started 1 turn out, ended 1 1/2 to 3/4 turns out
power jet one turn out. ended same
slow jet 32
main 118
changed needle fom #2 to #3 position.
Found a PDF on how to tune/jet KEIHIN (PWK) carbs..i do not know how to post links yet. It is from DUNCAN RACING INTERNATIONAL Title: KEIHIN CARBURATION JETTING..
Hope this helps you all as much as it did me..
I gained a lot of knowledge from that outline.. Explains step by step the process of tuning ..

Oh yeah, smooth through all throttle positions no bogs bangs whines..
big time acceleration, returns to idle, i can snap the throttle with no problems.

Added Qiliu AC racing CDI, Nibbi high-performance ignition coil power enhance d modified ignition coil,,

part num for cdi X002JS6LGJ
part num for Nibbi spark/coil X0027XNUBF