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  Topic Review (Newest First)
08-21-2019 01:57 PM
Jpowell490 Guys, email me and I will send you the perfect map. Autotune, leave the 0 column column alone, enter nothing in it. It will load up bad. Email is [email protected]

Enclose your username here for reference in the email.

Also, only email if you are going to use it. I need testers as I have a product under dev.
08-21-2019 12:33 PM
Bullstarz The auto tune is sort of working, it does throw up one or two issues. To get round them I just put a "0" in the AFR so it wouldn't change the settings. Then change the values man-drolicly.

1st day the bike was a pig loads of flat spots and stalled a lot. I could see the issue though and changed a few things and it was better. Then working out what was a good AFR at what revs and throttle position, trail and error.

Now it's possibly not as quick low down but much easier to ride in the slow corners, the snatchy harshness is going. Two of the corners on my way back home each day are tight slow 90 degrees, I use to have to pull the clutch in to get round. Now you can get round easily without the bike wanting to take off or stall/judder.

It's true though zx12's do like their fuel. Got a few more flat spots to sort out and get the tickover right. It can only get better if not just load an old map.
08-19-2019 02:55 PM
Dave Smith
Quote:
Originally Posted by Jpowell490 View Post
I have my map that I tuned. You would think you are riding a new bike. It is absolutely flawless.
Hi Jpowell.
Any chance I could try your map please?
My is pritty good really , but I'd like to try another as you never know if your missing out on an even better one.
Many thanks.
08-18-2019 10:12 AM
Jpowell490 Only if you will put it in and run down the road with it! I think you will be very surprised at your throttle response and power. Down at 1100 rpm all the way to redline.
08-18-2019 04:38 AM
Bullstarz
Quote:
Originally Posted by Jpowell490 View Post
I have my map that I tuned. You would think you are riding a new bike. It is absolutely flawless.
Any chance of having a look at your map and AFR table. I'm still in the early stages of mapping the bike. On tick-over the Air Fuel Ratio has gone from 11.9 (way too rich even for max fuel) to 14.7.
08-16-2019 08:01 PM
Jpowell490 I have my map that I tuned. You would think you are riding a new bike. It is absolutely flawless.
08-14-2019 08:43 AM
JayZX12R
Quote:
Originally Posted by Bullstarz View Post
I'll looked at you map and put it into the power commander software and see how it fairs. Do you have the AFR part of the map. I have the wideband2 fitted so ECU can self tune to get my map up to the optimum air fuel settings of your bike.
No. I no longer have a 12. I moved over to the cruiser world with a Honda VTX '09 1300R. I sold the bike a little over a year ago, that tune worked perfectly with my 12 (full muzzy, with emission stuff still on the bike).
08-14-2019 08:29 AM
Bullstarz I'll looked at you map and put it into the power commander software and see how it fairs. Do you have the AFR part of the map. I have the wideband2 fitted so ECU can self tune to get my map up to the optimum air fuel settings of your bike.
08-14-2019 06:12 AM
JayZX12R
Quote:
Originally Posted by Bullstarz View Post
Finally fitted the Power commander and wideband.

I was amazed how rich it ran AFR 12 at tick over. I noticed ages ago that when accelerating it would pull then just as you let the throttle off it would pull that little bit harder.

The AFR gauge showed what happened it ran 13.2 then as you let the throttle off it went to 12.7

It needs a session on the dyno to get the most out of it.

Has anyone got any ZX12 AFR maps from a dyno session.
I'm not sure if you can get the attached document I posted above, that was a Dyno Tuned map. If you can't PM with your e-mail address, and I will email it to you.
08-13-2019 12:11 PM
Bullstarz Finally fitted the Power commander and wideband.

I was amazed how rich it ran AFR 12 at tick over. I noticed ages ago that when accelerating it would pull then just as you let the throttle off it would pull that little bit harder.

The AFR gauge showed what happened it ran 13.2 then as you let the throttle off it went to 12.7

It needs a session on the dyno to get the most out of it.

Has anyone got any ZX12 AFR maps from a dyno session.
07-10-2019 05:57 AM
Jpowell490 You can buy block off plates for around 30 dollars. Easier than making them.

Swingarm travel isn't an issue and doesn't interfere with the sensor at all. Where the O2 sensor is mounted, the swingarm doesn't travel up and down.

The mounting point is in the bend of my pipe as well. I chose the spot and drilled it myself with a step bit. Then took it to a welding shop and had the bung tig welded in.

I can tell you the work up front is a bit of a pain, but it is well worth it. Bike runs fantastic. I have a full akrapovic system and had a bit of surging at 2-3000 rpm. That is totally gone. The autotune makes adjustments fast too.

Oh and spray from back wheel is negligent. I don't ride in the rain, but if I did I would have mounted it in the same place. There aren't too many more places to mount it. It is tight under the fairing.
07-10-2019 02:41 AM
Bullstarz I did look at putting the sensor there but i wants sure

a) how far the swinging arm came down
b) how much spray would hit it from the back wheel
c) On a stock exhaust this is on the seam.

How did you get around blanking of the air injection. I was looking at making some plates the same size as the Air Suction Valve Cover.
07-09-2019 06:59 PM
Jpowell490 These bikes came from the factory anywhere from 11 to 12 AFR. Remember, Muzzy ran 199 on a stock map. So they do like fuel.

I would be happy to email you my map. I get 36 MPG and the power is outstanding.

Here are pics of where I mounted my O2 sensor.
07-09-2019 02:04 PM
Bullstarz
Quote:
Originally Posted by Jpowell490 View Post
You would be absolutely crazy to run that lean of an AFR at any speed. These bikes were made to use lots of fuel. I wouldn't go any leaner than 13.8.


AFR 14.7 is the stoichiometric ratio for petrol , where fuel burn is the best. Too rich and you'll get bore wash as the fuel dont burn just dilutes the oil in the cylinder.

I heard these engine like the fuel but one of the main reasons for running a rich mixture it to keep the exhaust gasses cool enough not to burn out the cat.


Still fitted the PC5 today have to wait a while to get the sensor in the exhaust and remove the air injection.( any tips for the removal)
07-09-2019 01:54 PM
Jpowell490 Hey Jay,

No I didn't actually. I have an autotune and it is working fantastic. Your map looks fine on the bottom end, but doesn't seem to address the mid and top range. I am going strictly by the autotune with those comments. Not saying it didn't work for you, Your map helped me keep an eye on the autotune.

I appreciate your help, greatly.
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