1. Pulled the backfire screen outta the air filter cage, oiled the air filter. Pitched the airbox cover. 2. Pulled tank, drained out questionable fuel. Should I remove the white antisplash insert from the fuel tank? 3. Eyeballed the carb, gonna cut/remove the throttle stop this evening. 4. Gonna drain out the green antifreeze, and replace with the non silicate orange/red stuff. 5. Anybody got starting points for the following? Jetting for 7,000' elevation? Why different needles avail for Europe vs US. Spring rate? I go ~230lbs. Looks like they put really stiff springs for the US bikes, any guesses whether I should get some stiffer ones on order? Ordered a WB Vortecx? exhaust insert this am, along with a coupla extra Twin Air foam air filters. Since tank is off, I should probably do the "Grey wire mod" Anybody got good instructions on what to do? Thanks, Buck the "old fat A enduro rider". PS. Yawl do remove the metal screen outta the air filter cage, right?