posted January 19, 2002 12:36 PM
Doug, Mike, Ted, any suggestions? Just changed my oil for the first time since installing PCIIIr (about 800 miles). Heavy gas odor from oil. No emulsion or seperation of layers but definite gas contamination. I've been using Kcadby's map and I have full muzzy, K&N with block offs plates and using Motul 5100. I'm concerned over bearing wear as a result. No metal filings or copper in oil, thank God. Bike has been running strong but occasionally shuts off when throttle closed in prep for corner entries following long straight-aways. Any ideas or maps I might try?
posted January 19, 2002 03:16 PM
1st. The gas smell, do you do alot of short driving, or starting the motor and shutting it off.
2nd. shutting down, Do you have the same equipment that the map is for, and did you plug in the extra values for 0, 2, 5% throttle positions?
rich
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a poor 12 owner
posted January 19, 2002 04:12 PM
Edited By: speednuts on 19 Jan 2002 16:13
One at a time... Lube,
No I don't do a lot of short rides but I did fire it up for about 5 minutes to warm up the oil prior to draining it. I did have a map which erased the 2500rpm bog. I did have the same set-up for the map I was using. Stock map installed now. No chance to ride with snow today. I can't imagine the rings going away already. Only 2800 miles and she was broke in right and prior to any mods.
posted January 19, 2002 07:05 PM
I run Motul 300V synthetic oil. I noticed the gas smell when I changed the oil. I modified my map per Cliff Randall at 0,2,5% a while back. Since then, I reduced the numbers from 45%, to 25%, to 20%.
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Mark
'03 ZX-12R
'12 1199S
posted January 20, 2002 05:18 AM
fuel contamination If you dont have an o2 sensor on your bike then be carefull about adding fuel to the lowend to "smooth" out the off/on power delivery.
This bike runs very rich from the factory in most all areas.
Adding fuel to cover up off/on throttle transitions is a less than optimal fix.
Kawi got away with adding extra fuel in some areas because they had a cat on the bike. The cat adds cost to the bike and it wouldnt be on there if kawi could have dialed in the fuel injection and made it smoother without adding fuel.
Of course the cams are another reason that the cat is on there.
Put an o2 sensor on your bike and you will be shocked how much fuel is being dumped in.
When you dial the thing in for optimal 10% throttle A/F ratio it becomes jerky in some areas.
Its real hard to get a good A/F ratio and have smooth driveability at low to mid rpms. The throttle bodys are huge and the velocity is too low. And to top it off there is reversion at certain rpms that "double charge" and let the fuel drop out.
This bike needs a constant velocity fuel injection system like the R1. This way it retains the 46mm throttle bodies for topend yet keeps the velocity optimal for good midrange.
You 1270 and 1340 guys should notice this less because of the bigger displacement and higher throttle body velocity at a given rpm.
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Y2KZX12R
CompetitionCNC.com
posted January 20, 2002 08:13 AM
Edited By: johns on 20 Jan 2002 08:17
revised low end fuel map This is also off topic but my experience with the low end of the map has been the opposite of what I have read here. When my zx-12 was slightly modified (muzzy pipe, k&n's, power commander ect.) the 2000 to 3000 rpm range responded to leaning out the fuel not adding fuel. Top end H/P was also better with leaner than stock fuel settings. I agree with y2kzx12r that subtracting to much fuel hurts the low end power. When i installed a o2 sensor and RSR meter on the bike I was surprised at how rich the bike was at low throttle settings and rpm's. Leaning it out slightly helped the transition problem from 2000 to 3000 rpm and improved the drivability but leaning it down to theoretically optimum fuel ratios hurt drivability. When I fully modified the engine ( 1270
with fully ported head ) the transition problem at 2000 to 3000 rpm came back. The fuel ratio meter showed a richer condition than when the displacement and head were unmodified. I had to lean the fuel from 15 to 25 % from the muzzy map settings at the 0,5,10% throttle positions and the transition problems went away. I had to increase the muzzy fuel settings 8% at the 80 to 100% throttle positions from 8000 rpm's up to get max power. My ported head actually has slightly smaller ports than stock ( 10cc less volume on the inlets ) which is probably the reason the muzzy map didn't work as well for me as some others here. The engine is producing good power now but I intend to have it optimized on a dynojet with tuning link software before this spring. I don't expect to see any more peak H/P but I hope the tuning link will help the H/P and torque in the mid range.
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2006 ZX-14 (sold)
2012 ZX-14R (Brock's Perf. project bike Louisville Slugger)
2013 Honda VFR1200F
2003 124 C.I. H.D. Super glide
Needs a life
Full throttle!
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posted January 20, 2002 10:04 AM
With a DJ250 and Tuning Link software at my disposal, you would think that I could get the map right. And it's pretty good for my bikes, but the 2500 rpm bog has been a bitch kitty to get working right. I'll just wait for an '02 R1 to wind up in the local dealer's boneyard and see what it would take to get the bodies off that working...
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82 Gpz750, 84 Ninja 900, 2000 ZX12R (Muzzy Big Bore Kit), *another* 2000 ZX12R (Muzzy custom stroke crank 1341cc motor), 2004 ZZR1200, 2005 ZX10R, 2007 ZX14, 2008 Concours 14, 2014 Versys 650, 2014 Yamaha WR450F, 2015 Ninja H2
posted January 20, 2002 01:08 PM
2500 rpm flat spot swft maybee I have just been lucky or maybee the smaller inlet ports and increased velosity combined with leaner low end settings have all but fixed the problem. I can honestly say that I don't feel it any more. There is still a noticable transition at 3000 rpm which was always there even when the bike was stock. With the leaner low end settings the engine idle still wanders if i set the idle below 1400 rpm or so. No problem I just set it at 1500 and got used to it. Did you find that you're engine produces best power set slightly richer than ideal A/F ratios.
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2006 ZX-14 (sold)
2012 ZX-14R (Brock's Perf. project bike Louisville Slugger)
2013 Honda VFR1200F
2003 124 C.I. H.D. Super glide
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posted January 19, 2002 12:36 PM
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