I've got a 98' trophy 1200 with I believe mikuni bst36 carbs(o.e. fitted carbs) that have a "stage 1" jet dyno jet kit installed, slides are drilled as well. I didn't do the work, just bought it this way. I don't know the jet sizes or needle positions or any of that useful information at this point. What I do know is this, it starts easy, idles fine, only the slightest of sub 2k rpm "issue" when riding(it likes to run over 2000 rpm under load....like most any bike imo). No smoke or anything crazy, but stock 36mpg should be easy(2up loaded riding hard one gent claims 36mpg). Riding with nothing but me (200lbs) and empy bags I'm returning 22-23mpg....you can practically watch the gas gauge fall. I'm not a carb guru, I do most all my own auto repair but carb's are a dark art to me, especially a bank of them. It may well go to a shop, but I'd like to have some insight into the situation of at all possible. I don't trust any shop nor have a clue where I'll take it if I do but I need to get to the bottom of this. Range sucks this way and frankly it makes traveling just that more more expensive as well. Thanks for any insights, and yes I'll probably see about having it jetted back to stock but I'm wondering if that can really drop my mileage this far alone? Also installing new rubber, and new "insterstate friendly" gearing(19/41 replacing stock 18/42). New chain too of course.