Just finished rebuilding my bike after 5 months. It's been a journey. Amongst a million other fixes, mods and improvements I've installed the new gear postion sensor. Today I went for the first ride in 5 months. The new sensor works flawlessy with the Healtech gipro atre g2.
I don't know how it's possible to be fair:
this is a comparison between an old gen 1 (bottom) and gen 2-3 sensor (top)
The gen 2-3 sensor has a ground circle in the middle and the gen1 does not.
I followed this video:
I installed the gen 2-3 sensor on the gen 1 harness and placed a steel bearing ball in the middle of the shift drum to make contact with the ground as suggested in the video.
This is a gen 3 part scheme. Notice that the copper pin and spring goes both in the middle of the shift drum and on the outside hole too. The bearing ball should act as the middle pin.
The result? My sensor was all over the place. The bike had no clue what gear she was in. Even had trouble starting the bike without the clutch because she though she was in 1st despite being in neutral.
That's when I bought the revised 131510031 gen 1 sensor. I also bought another pin and spring to put in the middle and I talked with the local kawi mechanic that at the time was doing another job for me and he agreed that I needed a pin in the middle of the shiftdrum to make contact with the ground.
Well the time comes when I install the new sensor and low and behold the gen1 shift drum has a small hole in the middle, but you can't sit the spring+pin in there, not even the pin alone. So I thought "fuc# it" and I just installed the revised gen 1 sensor with a spring+pin on the outside hole of the shift drum and nothing in the middle, just like the original gen 1 configuration.
The result is that the gear readings on the gear indicator are spot on. Flawless.
This is the gen1 new indicator. Highly recommended. Direct swap with the original without needing to fiddle around in any way shape or form.
EDIT:
Follow-up a few months later. The revised gen 1 sensor started reading wrong a week after the install.
Definitive solution: Install the gen 1 revised sensor product code 131510031 + steel bearing ball in the middle of the shiftdrum. Run the learning procedure on the gipro. The gear indicator has been working perfectly now for months.