Ok, did the Z1 this weekend on my 2006 xt225, took less than 10 minutes to do. I like the power increase, and the ease of bumping the front wheel while in 1st gear. Now its time to play with the carb. I have read every conceivable thread it seems. I am just outside of Boston, so 15 feet above sea level. I sometimes ride up in NH, so the highest elevation I'll be dealing with is around 4500'. So I'm thinking of going from the stock 125 main, 40 pilot to 130 main, and leave the pilot stock at 40. Is that ok? Or should I go 42.5? I was thinking about doing this jets, riding for a couple weeks, and then messing around shimming the needle. I do notice how the bike hesitates from 1st gear at a stop. Maybe shim the needle while I'm already in the carb? FYI, I already did the 3 turn out idle jet. Also, I have farted around with the snorkel. Right now it is in, I have had it out before I did the Z1. Thinking I will end up taking it out for that little bit extra "oomph". I mostly commute in the city on it, so I go from stop to WOT constantly... oh the joys of city living. Thoughts? Recommendations? FYYFF?