Using the Morgan Carbtune Synchronizer (2) Really simple....Make sure bike is warmed up so go for a half hour or so ride before hand... 1) Get syncronizer 2) Remove tank (I pull the fairing paniers as well..but this is optional) 3) Pull off vacumn lines on carbs 1&4 and the vac line that drives the petcock on #2..there is a cap on the vac nipple of #3 remove this as well..the "nipples" that these are on, are where you hook up the syncronizer gagues 4) Hook up the syncronizer to these nipples (1 to 1 2 to 2 3 to 3 etc..) 5) Start motor (you may need an aux fuel supply..I just hook a really long hose to my tank and run the petcock in prime..if you are fast enough the fuel in the bowls is enough,,, 6) Turn adjusting screw for carbs 1&2 until the gagues are even,,then do the same for 3&4...once they are even the center screw (*you will need a LONG screwdriver to reach it*) to sync the 2 sides to each other.. 7) Put on tank and schtuff 8) Go ride~! :) === editors note === Morgan Carbtunes can be directly purchased from Carbtune.com: http://www.carbtune.com/ Around $50 pounds sterling, or $75-80 USD / Euro, depending on rates. The Carbtune 2 uses stainless steel rods to measure the synch rather than mercury. Much less risk than mercury!