So I’ve consulted the many guides that talk about phbg tuning but I’m having some issues. I have a polini 64 kit on a ZA50 with a 19mm phbg and foam air filter.
When this engine was running and ripping in VIRGINIA it ran a 88main jet, 50 idle jet and the 60 choke jet.
Now I live in NH with a much higher elevation and am having a hell of a time getting this to idle properly.
I immediately upjetted to a 94 main just to be safe from a seize and I can tune that down later if needed.
The za wouldn’t idle well for me until I put in a 52 idle jet but based on what I’ve seen everywhere, that’s super high. Additionally the mix screw must be screwed in completely for the za to continue running.
Am I just vastly “overjetted” in my idle and I should be close to mid 40s for an idle jet?
Any help would be great. I’m trying my best here but I’m stumbling