dyno tuning how lean is safe?
 

So yeah, a year after my air filter, exhaust, power commander, and finally a gps corrected speedo healer. I am seeing 33-37mpg, while just cruising. Not getting on it. Mostly highway. I would be ok with this, except it is clearly still throwing out fuel because both myself and especially my girl smell like gas after a ride, long or short.

Clearly there is extra fuel being used that is not needed. But I do not know how lean I can get this tuned safely. Does anyone else know? seems stock it was around a 13.9-14.0 AF ratio.. Currently it is 12-13 after tune. Sure it is smoother, but again, it is putting out gas smell. Any thoughts on how lean I can get it, while still being able to ride hard on a hot day?

bump, nobody knows?

Check your FPR?

I haven't done that yet, but it is not nearly as bad as people say it gets. And, it was tuned fine, just tuned a bit rich apparently. Not saying it couldn't be the problem, but everyone says it is much worse when FPR. Looking at my map, it is far from the 14ish to 1 that the stock curve was nearly. So it was made richer. I want to know safe leaness. So I can have it retuned again, but a little better.

In cars perfect ratuo is 14.7:1. Not sure if its the same for bikes. Cant think why it wouldnt be.

from looking at threads, it looks like people are tuning newer 1000cc rr bikes to 13.7-14 with best results... So yeah, I am richly tuned, considering they are higher compression etc... but I would really like to see what the 600 has been tuned to. 14.2 is cleanest most efficient burn theoretically for gas. sooo hrm.