Join Date: Mar 2004
Location: Greater Worcester Area, MA, USA
I think it's pretty cool. What you did was scew the mixture to richer, over the entire range. I think it's the same effect as "resetting the TPS" using the Ducati system, or the VDTS that you mentioned. So rather than doing it electronically, you did it mechanically.
I had my ST4S on the dyno at the dealer for a few reasons. One of the results shows that it's lean throughout the entire range. And the tech said "there are things that we could do..." And I think he was referring to bumping the TPS setting.
The only downside is that you didn't use a sniffer, so you'll never know where it's at...
...but again, if it feels great, not fouling the plugs, good mileage, etc., you're prolly "good to go".
If you can get a dyno run done for about $20, WITH SNIFFER, It's prolly worth doing.
The only other thing I would have done is took the initial mV reading to establish a point that you could get back to, if you ever needed to... Plus, We're dying to know what the new value is!!!!
I took a reading on my ST2 "because I was in there" and I think it was about 445mV at it's idle setting... But since the bike ran so well, I never had a reason to muck with the TPS.
Stick -~~~- Need an adrenaline rush? Shove a DUC between your legs.
Present DUCs: 2013 MTS1200S GT, 2003 ST4S, 2001 ST2, 1996 900 SS/CR, 1996 900 SS/SP