8 years ago I started an engine transplant from zx9r to zx10r.
Needless to say that time, life and money got in the way.

I do regret starting the transplant as if I didn't I would have had many more years of driving pleasure.

So after digging her out of the garage this is what I was greeted with.

What a mess

A bloody mess.
I hate electrics. Everything else is a doddle.

So can I keep it simple and ask one question at a time.

When I eventually get a new exhaust system there won't be any cats on it.
What do I do with the o2 connectors on the loom and what impact will this have with the fuelling set up.

Thanks in advance.

Brad.

[Edited on 18/4/20 by roadrunner]

[Edited on 19/4/20 by roadrunner]

You should still put a o2/lambda sensor in the exhaust. The ECU will use that signal to control the mixture. As the sensor goes before the cat' then not having a cat' effect the O2 doing it's job.

PS. I'm assuming the zx10 only has a pre-cat' o2 and not a post cat' one.

As above, The ecu will use it to run closed loop furling. If it has post o2 sensors you can get little spacers that fool the sensor or you would map them out.

If your making mods to the fuel system you will probably need to make adjustments with something like a power commander anyway.

I'm using an American ECU with a Power Commander.
Would I be able to map the need for the o2 sensors out.
The o2 sensors are pre cat.

[Edited on 19/4/20 by roadrunner]

Managed to make some headway today.

Researched my old threads from when I fitted the ZX9 looking at fan switching and connecting my old ignition system with the bike loom.
Not looking forward to that. ;-{}

Gone through the loom to see what's missing or where it's supposed to go
Anyone got an air temperature sensor.

Sorted my dash from this

started new dash

To this

Dadh sorted

quote:

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Originally posted by roadrunner
8 years ago I started an engine transplant from zx9r to zx10r.
Needless to say that time, life and money got in the way.

I do regret starting the transplant as if I didn't I would have had many more years of driving pleasure.

So after digging her out of the garage this is what I was greeted with.

What a mess

A bloody mess.
I hate electrics. Everything else is a doddle.

So can I keep it simple and ask one question at a time.

When I eventually get a new exhaust system there won't be any cats on it.
What do I do with the o2 connectors on the loom and what impact will this have with the fuelling set up.

Thanks in advance.

Brad.

[Edited on 18/4/20 by roadrunner]

[Edited on 19/4/20 by roadrunner]

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Good morning Graham.
How the hell are you.
Hope you are well and keeping safe.

I currently have two CO2 connections in the loom but there will only be one on the exhaust.
Is it as simple as splicing the wiring plugs together to form one plug.

With no fuel pump yet or exhaust manifold I thought I would connect a spare car battery I've got to see how the electrics behave.
The car side of it behaved as it should.
But upon connecting the bike side to the battery the zx10 clocks came on even though the ignition was switched off.
Will have a mess around tomorrow to see what's going on.

Nope you can’t connect the o2 sensors. The first is for the closed loop control, the second checks on the cat. If your not fitting a cat you could get the second mapped out or there are ways to fool the sensor into thinking the cat is there but it would need putting in the exhaust.

If your swapping the air box for a filter it will need mapping any way.

It's a twin cat set up. So should be reading the same info.
In my mind anyway.

Headers

Ah got you. My Duratec30 has four of the bloody things. Although they will see the same information I still don’t think you can combine them. There are two elements, the sensor and the heater. The sensors work at very low voltages of between 0.1~1v, The resistance when combining them will alter things.

You can buy the bits to remove them but you will still need something like a power commander to adjust the fueling, just look on eBay for zx10r mil eliminators.

If your fitting it on a budget you need to fit as it came from the bike if you start altering things you will need to over ride the map.

It’s why 99% of car engine installs use aftermarket engine management.

Thanks for the info and I can understand about the difference in voltage for the readings.
I do have a power commander fitted so will be getting it tuned as soon as possible.

Wiring is coming along nicely now. Had issues with connections which forced me into a bit of a strip out.

Just connecting the high pressure fuel pump now and that will force me into looking at all the connections again.
Don't want any popping off.

Just used the new fuel pump to empty the tank.
Luckily for me it was fairly empty.
But eight year old petrol stinks.

Managed to get 99% of the wiring sorted so that now I have a spark.
Just need a speed sensor but for some reason I don't have any connections for. So this will be hard wired in.
Small job for today. Clutch cable connected and a simple return spring fitted. I utilised a frame mounting point putting in a longer bolt for an anchorage point. Works rather well.

Clutch return spring