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BIKELAND > FORUMS > DRAGBIKE ZONE.com > Thread: 1498 cc STX-ninja Hybrid motor NEW TOPIC NEW POLL POST REPLY
2000redrocket


Pro
Posts: 1662
posted March 11, 2012 10:02 AM        
get the correct afr mixture. car wise people will drill a small hole in the blades to get the throttle closed more but if i were you i would not do that.
what afr at idle and rpms? and what afr at the elevated idle?

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 11, 2012 10:14 AM        
Ill check again in a second. I thought about using the second set of nipples to regulate idle with a metering block off the hoses.

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 11, 2012 10:14 AM        
i will say if they are the same maps as mine the a-n tps map is always richer for a hard load and down low i bet it is real rich for no hesitation when you blip it and the ecu switches from density to a-n. it does do that.
do you have the means to adjust the ecu? if so for the hell of it set it to the map (iap) sensor map and see what happens.
you are probally going to have to take numbers out of the idleing rpm area. but do it one number at a time till you get a feal for it. 1 number is one number ar closet throttle high vacume and not much air or wide open and a lot of air. at closed position and driving areas if i am sort of close even 3 number change will pass my target.
if you decide to tune the density map the important thing to remember is the vacume colum you are running will constantly change as you lean it out and need less throttle for the same speed/load on the engine.
once you learn the pattern of what does what it will be ok to get it ok safe. then the tweeking on the density iap map gets pickey to really find the exact colum to tweek with out a vacume guage reading to go with the rpm it is not happy afr wise.
a real hard dampened vacume guage helps a lot to watch how you are doing. even with tweeking tps/rpm map.

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 11, 2012 10:30 AM        
Mine does not switch its full alpha n or full speed density. I have the option to choose between the 2. My ecu is fully programmable so I can change anything I want. I have tried to start on the speed density map and it does not start.

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 11, 2012 10:37 AM        
well the start by getting the afr good at idle. at some point you are going to need a datalogger to watch afr and tps so you know where to make changes.

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 11, 2012 10:43 AM        
I will have that covered soon. I am building a new stand so I can get the ski out and tune on the hose.

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 11, 2012 02:31 PM        
just expect it to be different under load in the water. i use a wego3. water proof and small with a live display. and it being small i put it on everything and help others tuneing.
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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 11, 2012 03:02 PM        
I have an aem uego gauge and sensor wired up to the ski, the gauge has been sealed and its covered by a cowl. Right now i am just concerned with getting the ski to start consistantly before I think about water testing it.

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 11, 2012 08:53 PM        
well if you get the afr someware between 12.5 and 13.5 at all times there is no reason why it should not work properly,
with the wego3 or a inovate (stay away from the lm1) you will ger a graph of afr and rpm and tps (if you have the tps hiiked up to the extra 0 to 5vdc channel) you will know where exactly to adjust fuel and when you do it a bunch of times you will even know how much to add or take away> dataloggers are priceless for what you want to do<
good luck

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 12, 2012 05:34 PM        
VThanks. I am still having starting issues though. It was starting alright the other day but now it starts quick then dies nearly instantly. I opened up the air bleed screws but I have not adjusted them yet. What do yall recommend as far as idle adjustment?

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 12, 2012 05:47 PM        
my bike when stock started up and died cold a couple of times till it stayed running. add fuel to the below idle rpms
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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 12, 2012 05:49 PM        
Ok so bump the afr up while starting then down at idle?

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 13, 2012 11:52 AM        
if you think everything else if sane and good you have nothing to loose but to add fuel below idle and see if it starts up eaiser....... after all you can put it back. i must of flashed my cpu 500 times it seems. but the time you go for a ride and you have it good it is all worth it. and if not it is easy to sit with a beer and go over the last rides log file and do more tweeking.
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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 14, 2012 04:08 PM        
I added a bunch of fuel in pressure and pulse width and it helped a bunch but I am still having trouble starting with 12.9 v or less. I have the air bleed screws fully closed as they came and opening them helps a bit when idling but any time I crack the throttle it runs on 2 or 3 cylinders. The idle afr is now 14.8 so more fuel is needed but its better than it was. The start map run 15* timing and i am running 8* once started and it seems to be happy there. I still need to tune my heat table for fuel because once the oil starts to warm up it dies. I will be doing some tuning on the hose tomorrow or friday to get idle afr nailed down.

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 14, 2012 06:45 PM        Edited By: 2000redrocket on 15 Mar 2012 02:58
like i said look at rigging a battery in line from the starter selonide and the starte for 24vdc startingr> even a garden tractor battery put the origional wire off the starter onto the neg of the second battery and the plus on the starter.
for a what if i do this to see if it helps>>>>> you have nothing to loose if you own a battery except maybe some wire and terminal connectors.
just because others do not have a problem does not meen you will not. expecially if you have tuneing issues.
ask the guy at the track with a gto that had real big jets and no black smoke going down the track and white lean plugs but foul the plugs on the way back to the pits if he still believes his fuel system works exactly like the others that susposedly ran mid 9s.
if you do not give it a try and keep chacing your ass on the hard starting issues when hot you will not be able to cross the starter issue off your list.
best wishes

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Oz Booster


Expert Class
Posts: 230
posted March 15, 2012 12:52 PM        
Is your motor seeing the same timing as your map ?? depending on your cam and crank trigger timing it could be quite different , an adjustable timing light could confirm your timing
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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 17, 2012 03:58 PM        
The crank and cam signals are stock, crank is the 8 tooth wheel and the cam is single tooth pointing at the cam sensor at tdc on number 1.

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 19, 2012 01:03 PM        Edited By: smokeysevin on 19 Mar 2012 21:04
First Video of the day
http://www.youtube.com/watch?v=L7auumR5DHc
Closeup of Exhaust
http://www.youtube.com/watch?v=clZacpdSHL8
Short walk around
http://www.youtube.com/watch?v=IfyGrslIOFw
View of Gauges
http://www.youtube.com/watch?v=hYl4vTq-K2I
Almost there
http://www.youtube.com/watch?v=Xp0KGJIixCE
Sean
____________
1498 cc
69.2mm stroke
83mm bore

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 19, 2012 06:41 PM        
http://www.2shared.com/file/HSLBHqni/Engine_Tuning_-_Copy.html

There is all my engine maps and tuning software if anyone wants to play with it, more than likely it will be in french when you open it. Open the zip file, click on the engine tuning folder, open ev11 then click on the ev11 icon. Click on the 4th menu over, then the first title under the menu. Then click on the third tab and select English from the middle option. Once in english click on the open menu under file and then click on any of the maps.

Enjoy

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 21, 2012 01:52 PM        
There is a mode on the ecu that allows me to set the timing and injector pulse width, I can log these on the computer while starting and running and these values are correct. If I turn this function off and let the ecu do its own thing the ecu advances the timing an additional 4 degrees from where it is set, and adds a pulse width of an additional 5500 microseconds. I adjusted all the multipliers for temperature back to 1 and set the initial pulse back and the cranking pulse width was still over 1000 microseconds too high. I can get the ski to start and run on the basic 5 degrees advance and 2800 pulse width using they dyno mode but the second I try to start it off nothing happens. Any Ideas on what it could be?

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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2000redrocket


Pro
Posts: 1662
posted March 21, 2012 03:33 PM        
i say go back to stock ecu for the ski. this sounds like you need a bunch of experience which i bet is hard to get on a ski.
this sucks. can you get a tuner for the stock ecu?

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 21, 2012 04:00 PM        
The equipment to tune the ski is really expensive. I met one of the guys from dynojet research who was supposed to be sending me a module to test but he never got back to me. I would love to get a motec because i know they have support for this kind of thing but I dont have the cash for even their basic ecu. I am planning on picking up a megasquirt 3 and starting clean from something that I can directly import a zx12r base map from and not have to guess what the settings should be. I am fairly experianced with ecu stuff but this is a whole.other level. I swear the previous owner of this.ecu intentionally wrote wrong settings in this ecu.

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted March 29, 2012 02:59 PM        
scrapped the current ecu in favor of a loaded megasquirt 3 with ms3x card I am going to be doing the wiring this weekend will be wiring with the stock connectors from a zx12r

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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smokeysevin


Novice Class
ZX12r-STX15f hybrid motor
Posts: 82
posted June 07, 2012 03:12 PM        
Full sequential megasquirt 3 with megasquirt 3x expansion card is installed, wired, tested, and retested, I want to try and fire the ski up tomorrow but I can't get my timing light to work on the zx12r coils, I tried adding a short jumper lead from the plug end of the coil and running that to the plug and putting the clamp on that, I tried to run the timing light off the coil directly, off the leads going into the coil and I have had no luck at all, How do y'all run timing lights on your motors?

Thanks

Sean
____________
1498 cc
69.2mm stroke
83mm bore

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KZScott


Needs a life
high on speed
Posts: 7235
posted June 16, 2012 07:44 PM        
any progress?

http://www.diyautotune.com/tech_articles/vrsensor/megasquirt_vr_index.htm
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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BIKELAND > FORUMS > DRAGBIKE ZONE.com > Thread: 1498 cc STX-ninja Hybrid motor NEW TOPIC NEW POLL POST REPLY

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