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[TIMINATOR]

I added a DYNOJET USB III to my 2003 Deuce after adding the V&H 2 into 1s, it improved the throttle response, added a small amount of power, and killed the mileage (had a Terry Components feedback fuel tuner before). Combined city/hwy mileage: Big shots: 42-46 mpg with terry tuner, V&H 2 into 1s w/terry tuner: 48-51, V&H 2 into 1s w/USB III: 43-47 mpg. Now the plot thickens: My new to me 2003 CVO deuce has Thunder headers, and as purchased, no tuner of any sort: 46-50 mpg with poor throttle response, idle and poor power below 2000 rpm. Added the USB III from the other Deuce, didn't change any tuning yet, and picked up a major bunch of response, and power everywhere, smoothed the lope, and made the bike much more of a pleasure to drive. Prior to adding the USB III, as the temps fell here (Phoenix,AZ) from 105/110 to 80s/90s the bike felt slower and less responsive (seems to me from being lean). Now the question: my guess is that the CVO was leaner from the factory to pass smog with the bigger cam, and the T-Header made that condition worse, and that's why the USB III made a bigger difference.  I can't wait to get the time to tune it! Comments? experiences?  TIMINATOR

[FLTRI]

From my experiences the maps from Dynojet are purposely richer than necessary.
I believe they do this to error on the rich side for engine safety because of variables built in each bike.
They will suggest you to take it to an experienced tuner to get the best performance and mileage from your bike.
HTH,
Bob

[TIMINATOR]

thanks.  Timm