4dx wiring diagram

[maddy]

hi, i am after a 4dx wiring diagram, if there is one i have the 3tj ones. i just need to check the 4dx wiring as i have a 4dx, but i think i may have a 3tj engine/wiring loom. not sure if the wiring is different.

thanks in advance

[Hogdigerdy Dog]

wiring is pretty much the same for the 4dx - 3tj and 3tj sp's,
only minor changes ie rear light between 4dx & 3tj etc
you should be ok with the 3tj wiring diagram in the fzr general section

if it's a 4dx it will have a big square back light, (instead of the 2 thin horizontal lights of the tj)
and an oil cooler, which goes around the base of the oil filter, look for pipes off the rad going behind the headers to the engine at the base of the oil filter

or just post some pics

[Evilchicken0]

The 4DX doesn't have a Japanese restriction so it probably doesn't have the three wires conecting into the rear of the speedo and I think the CDI is slightly different too.

[Hogdigerdy Dog]

i still think the wiring is the same, because the restriction is mechanical ( ie the metal plate behind the speedo) if you cut it away the bike wont hit the restriction, so your unrestricted, with no change to the wiring

[maddy]

i should have explained a bit better really,

I have a 4dx frame that i bought thinking i got a 4dx bike.
however when playing around i spotted some dodgy wiring so i dug deeper.
I think i have a 3tj engine and wiring loom as the engine number has a 3tj on it and it was fitted with a 3tj cdi.
so i bought a 4dx cdi and fitted it to the avaliable wires, which all plug in somewhere. but the wires have been cut and modded i would say to possible fit a mmax box for the 3tj cdi,

on the 3tj cdi there is a 3 pin plug in the middle which has a green wire / red and green / blue and red however on the 4dx one there is only a red and green.

on the 3tj wiring diagram the red and green wire goes to the fuel reserve switch, and the other 2 go to the clocks.

but someone has change my connections around under the seat and if i followed the 3tj diagram i would say that my cdi red/green wire is connected to the clocks not the fuel reserve. and the other 2 are connected to a red and brown wire.

i dont think the other 2 wires need fitting to anything as they go to the clocks which is for the 3tj restriction, and i should connect the red and green wire to the reserve switch as in the diagram.

but i wanted to see a 4 dx wiring diagram to confirm this as if the looms are different then i will make it worse.
if the diagrams are the same then i will just have to get the multimeter out and do some com checking on the wires and find out where the actually go to.

[Hogdigerdy Dog]

i think you have a doctored cdi, (good for the track) but can cause some problems on the road, especial with the reserve system
someone had a similar problem recently
here
viewtopic.php?f=37&t=32500&p=232873#p232873

[Evilchicken0]

i still think the wiring is the same, because the restriction is mechanical ( ie the metal plate behind the speedo) if you cut it away the bike wont hit the restriction, so your unrestricted, with no change to the wiring

Cutting the wheel has never worked before

There are lots of home derestrictions that end up making it worse than just leaving it alone. Basically the restriction recieves an electrical signal from the speedo at 0 if it doesn't get this it restricts to 12,500 rpm in every gear.

The best way to derstrict a road bike is to leave everything intact and fit a kmh > mph

[maddy]

i dont want to de-restrict it, i am trying to get it back to the 4dx standard that is should be. and to do that i need to sort out the wiring that has been manipulated to fit a 3tj cdi and possible a mmax box. but all the 3tj diagrams show those wires that come from the speedo which i beleive are the red/blue wire and green wire.

the 4dx cdi does not have a plug for these 2 wires.

someone has cut the green wire from the plug for the 3tj cdi that has a green wire in the middle and a red/blue and red/green wire either side. and from the diagram these go to the clocks and the reserve. the 4dx cdi does not require the green wire and the blue/red wire as i understand it.

so the red/green wire should go to the reserve switch.

however on mine the green wire is attached to the cdi. and the red/blue and red/green connected to a brown and red wire. which i dont understand why or where they go other than to power.

connected it that config if the main swicth is on, and i then switch to reserve you can hear the fuel pump switch on the same as when you switch the bike on. (not sure if that is what is supposed to happen)

so i am trying to work out where all these wires should be connected to with a 4dx cdi so that the fuel reserve switch works as it should and the bike runs properly. So are the looms different and do i have a 3tj loom or 4dx loom. basically i think i either need a photo from under the seat of a standard 4dx model or the wiring diagram so i can work out exactly where these wires should be connected.

I just wish people would either fix things properly or leave them alone.

my guess is that at some point a 3tj engine and cdi have been put it in, probably because they could not get the 4dx stuff. or they took the 4dx stuff out for racing and put in the 3tj stuff.

i just want to try and get it back to standard so i can then get it running nice and looking good, and enjoy riding it.

[Evilchicken0]

Maybe a 4DX frame swap on a 3TJ bike.

Have a look at a FZR600R foxeye wiring diagram, it has a similar set up with the reserve switch but it looks like a green/white wire. This wire comes out of the CDI and goes to the fuel pump and one side of the [starting circuit cut off relay + fuel pump relay] I think thses are two halfs of the same thing.
These bikes don't use a reserve as such, when the fuel gets low they signal the CDI which cuts two cyclinders until you flip the reserve switch.
The wires from the speedo are similar so if you go faster than 180 kmh (112mph) the CDI cuts two cylinders until you slow down. These also wire into the side stand cut out and neutral sensor resetting the system every time the bike is started up, but if it doesn't get a reset it restricts in all gears, it's still ridable but it's pain if you want to make spirited progress. Your 3TJ CDI will do this.