does any one have a feel regarding jetting a 2004 fs 650e with a complete Akrapovic titanium exhaust system.elevation typically sea level to 4000 foot :?: thanx,dan.
the bike is coming in next wednesday for the pipe install.we were planning on jetting it while it is here .i want to make sure i have the proper jets in stock when it is here.right now the stock needle is one richer,the pilot jet is a 48,the air jet a 60 ,and the main jet is stock.the stock pipe in the us comes with a spark arrestor.i am guessing the Akropovic will affect the jetting needs and want to be prepared for any changes warranted.
i don't have the specs on your carb but i do have it on the '04 550.
if it's true that you have a #60 PAJ then you may have mis-read the PJ size and it is infact a 38PJ. this would be inline with my PA/PJ ratios that i worked out 3 years ago. am i chuffed or what!
however there is the chance that you have a 100PAJ to which the 48PJ is about right but that a 45 or even a 42 would be better. try some little pop wheelies in the yard when warmed up and take the PS (underneath) in and out + or - 1/2 turn to get the snap right.
if best is 1 turn out from closed then you need a smaller PJ and if you need more than 2 turns out from closed then you need a larger PJ although at #50 i would say that you'd better go to the doctors as well.