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8,918 Posts
GB,
I don't have a Gastester, although I would very much like one.
If you have the mid RPM balanced with the rod, and idle balanced to your satisfaction with the screws full in (or not), then you are good to go.
From there, you just need to ride it. If your fuel mileage drops or the throttle response seems soft, then you're rich. If you get popping on overrun or sneeze stalls, then you are a bit lean. Knowing that, you can adjust the trim a bit at a time. Large trim adjustments will require a resync.
My ST feels best just a tad more rich than the sneeze stall region.
Have a good one.
I don't have a Gastester, although I would very much like one.
If you have the mid RPM balanced with the rod, and idle balanced to your satisfaction with the screws full in (or not), then you are good to go.
From there, you just need to ride it. If your fuel mileage drops or the throttle response seems soft, then you're rich. If you get popping on overrun or sneeze stalls, then you are a bit lean. Knowing that, you can adjust the trim a bit at a time. Large trim adjustments will require a resync.
My ST feels best just a tad more rich than the sneeze stall region.
Have a good one.