XJ750E-II

Hello all.

My first post. I'm in Wellington, New Zealand and I've just bought a fairly rough XJ750E-II (29R). It's a 750 with a 900 tank and accessories. The tank has a leak in the lower R/H corner and the rest could do with some TLC. The engine starts and runs OK but the electric are a bit of a mess.

The bike was being used as a comuter until the last owner bought it for it's bodywork. I'm left with all the rough bits after the swap.

So far I've reconnected everything, wired in a new fusebox and started the clean-up. I'll repair the tank (unless a good XJ900 one turns up) and recover the seat. At the moment my friend (the previous owner) still has the front fairing for colour matching at the painter.

My question, there are two looms coming out of the gauge cluster, one with about 12-16 pins, the connection is obvious. The other loom has a plug with 3 wires/pins (black, white/red stripe & yellow/green stripe). I can find no corresponding plug to fit it too.

I'm assuming its on the front fairing when I get it back but for the life of me I can't think what it would be, any ideas? It's not the headlight as that "T" plug is there and I have had the headlight connected and it works OK.

I've opened the instrument cluster and without pulling it to pieces completely the loom appears to go to the clock/trip display circuit board.

All help appreciated.

 

The three wire loom pigtail is the Instrument Panel Lighting and should connect to a matching connector found within the Headlight Bucket or in the space behind the Headlamp.

Since they are for lighting only ... you can splice that pigtail into matching colored wiring and get your instruments lighted.

The Red Wire with a White Stripe is +12V (Switched; Ignition On/Off)

 

Thanks Ric, unfortunately it's not that simple. There is no spare connector to plug it into. All of the backlighting works except for the speedo (suspect a blown bulb). There are two looms coming out of the cluster, one has two plugs (9 pin & 6 pin) these two are connected. The problem loom is the other with just a 3 pin plug.

This loom has a plug with male pins and 3 wires coloured black, white/red stripe (definitely not red with a white stripe) & yellow/green stripe (the green stripe could in fact be blue it's badly faded).

As I said the fairing is not fitted currently so the whole front is exposed, there is definitely no corresponding plug to fit it into.

The black is earthed (must be thru the instrument cluster) and the other two wires have 5 volts to earth. I know that's strange!

As I say the loom goes into the clock / trip meter circuit board inside the cluster.

 

Hey Kiwi...

Check this site out... this guy lives in Timaru and probably knows more about your bike than anyone else in NZ. He's a fantastic guy and happily shares any information he knows.

http://members.tripod.com/dave_jack/

 

OK some more on this mystery connector.

Another New Zealand member here (nzjohn650) also has a an XJ750E-II an he's contacted me via email regarding what connects to this plug. Pictures of the mystery device are below:







OK I give up what is it, a chocolate fish for the person with the best explaination. John's email comments on it are repeated here:

I have found what it plugs into and I am still wondering, At the bottom of the steering head there is a bracket with a U shape in it , it is orientated to the left by about 20 degrees, there is a sliding plastic section and what appers to be a sensor. The plug sits behind the bracket. Did you find out anything about this item. (which of course does not appear on any schematics so far)

and:

"The front of the curve has a sliding plastic piece. The wires match up to the ones you describe. The lower tree has a U shape connector which looks as if it held a pin which has broken off the plastic slide"

Please, please can someone provide a hint! The bike runs fine without it but the suspense is killing me.

 

Wheel rotation sensor for electronic speedometer or self-cancelling turn signals?

 

An interlock sensor to keep you from starting the bike with the handlebars locked? I can't see TURNING the bars in a normal riding situation enough for it to be part of the self-canceller...