DFI

[ferret]

It would appear that the DFI fuel injection system on my bike , a 1100 Uni Trac , has acquired an intermittent fault in that the DFI light illuminates after 60 - 70 miles.
On checking the LED light on the ECU unit it would appear that the engine temperature sensor is to blame.
Does anyone know if these are readily available? if not does anyone have a serviceable replacement sensor which I could purchase.

Secondly is it an easy fix or would I need to find a specialist, I have read the Clymer manual and the fuel injection system does seem complex.

thanks in advance

Stuart

[z1bman]

it screws into the back of the cylinder head check the female bullet connector is secure on the grey wire . same part fitted to all kawaski fuel injection bikes in the 1980s gpz 750 turbo gpz1100 b1 /b2 zzg 13000

[ferret]

Thanks I will check that in the morning

[steve.w]

I have one !! also the black box

[ferret]

Have what? a GPZ 1100 Uni Trac? , ENGINE TEMP SENSOR?

If you have a temp sensor which is serviceable and you want to sell I would be interested.

[j.b]

have you given the sensor and boss a really, really good clean? they can be prone to poor earth contact

[Ginger Bear]

As JB says,

Remove the sensor from the boss & remove the boss from the head & clean all threads thoroughly. 30+ years of corrosion will seriously affect the electrical resistance.

I'd also recommend that you cut the bullet connector off the cable & inspect the condition of the wire for corrosion, before crimping on a new connector. If the wire is also corroded, then replace that as well.

[ferret]

Thanks all , I will be having a look tomorrow.

[johnA]

if you have a look on the 750turbo site i think in the new parts section there's a place in the usa selling engine temp sensors for $16

[ferret]

Replaced the temp sensor with a second hand one from steve.w, been for a rideout today and all seems well, thanks again.