re jetting z750 4cyl

stephen lavery · #1 PostAuthor: **stephen lavery** » Sun Oct 19, 2008 2:12 pm

can anybody help me with jetting on a z750 4cyl running 125 main jets k\n filters with custom made 4 into 4 drag pipes. i dont know original size of jets so not sure were to start. may be 115 jets? running poorly at moment.

big green bus · #2 PostAuthor: **big green bus** » Mon Oct 20, 2008 4:15 pm

the standard size on a gpz750 is 125. i fitted a dyna jet kit to mine and the main jet was a 180!!!!!. you would also need to fit an air corrector jet with about a .3 hole in it. i will check mine tomorrow and find out exactly. you will also need to move the needle clip. i will be intouch unless someone on the site can give you a bit more info

stephen lavery · #3 PostAuthor: **stephen lavery** » Mon Oct 20, 2008 9:13 pm

thanks big green bus but not sure if the jetting on gpz is the same as early z750. 180 sounds allot. but your info will be appreciated.

Dark Skies · #4 PostAuthor: **Dark Skies** » Tue Oct 21, 2008 9:00 am

If you go to the Kawasaki part search facility you should be able to find a parts schematic that tells you the jet size:

http://www.kawasaki.com/DefaultFrame.as ... ehicle.asp?

big green bus · #5 PostAuthor: **big green bus** » Thu Oct 23, 2008 4:21 pm

asked one of the earlystock lads and he says you are waisting your time without a dynajet kit and you do run 180 jets with the kit but the needles are longer (in the kit)

stephen lavery · #6 PostAuthor: **stephen lavery** » Thu Oct 23, 2008 5:16 pm

thanks again bro