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Old 07-11-2009, 10:28 AM   #1
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From: houston,tx
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2003 zx12r common mods for street

what are common mods for a 2003 zx12r?i'm most concerned with comfort during 2-4hr rides and harnessing the big k's power lower/smoother in the rpm range while still getting 125+ to a tank.i'm 6ft 200lbs.i'm not so much concerned with top speed (150mph+),just getting the most out of this baby while touring/passing/street riding.thanks guys from reading earlier post i know i'm at the right place.
   
 
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Old 07-11-2009, 11:24 AM   #2
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The first thing I did on my 01 was gut that damn cat...lets the heat out and improves throttle response. I think you'll find it in the same place on the 03 right before the can section.
   
 
Old 07-11-2009, 12:09 PM   #3
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Nitrous oxide, radar/laser jammer, mirror block-offs, flush mount turn signals, license plate flipper.
   
 
Old 07-11-2009, 02:10 PM   #4
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From: Hackettstown N.J.
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Nothing much is needed for that kind of use. I recommend Heli Bars, maybe a slip on for a little more sound, a rear hugger to keep the suspension cleaner and some cosmetic changes to suit your taste. Gas mileage is pathetic, but I still get 150-170 miles to a tank, depending on the number of gas stations in the area. Miscalculate your mileage and you will find it hard to push, so err on the side of safety!
   
 
Old 07-11-2009, 06:10 PM   #5
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From: vancouver b.c. Canada
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Power commander,aftermarket pipe,17 tooth front sprocket,filters & kleen air removal or vac mod...mods here Dave Potter's Kawasaki ZX12-R Tuning Guide - ZX12R Modifications
   
 
Old 07-12-2009, 09:59 AM   #6
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From: houston,tx
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ok sounds good,thanks for the info guys.
   
 
Old 07-12-2009, 06:38 PM   #7
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From: Bellingham, WA
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Quote:
Gas mileage is pathetic, but I still get 150-170 miles to a tank, depending on the number of gas stations in the area.
WTF? I get maybe 110 if I'm lucky. I've got a '00 with a full tsukigi titanium exhaust, PCIII USB with a very mild map, and -1 on the front sprocket on the rear. I ride about 25 miles a day, and on the 4th day after a fill up, I'm well into the red.

what kind of setup do you have? All stock? mods?

my mileage blows
   
 
Old 07-14-2009, 08:24 AM   #8
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From: Irvine, Ca
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Sounds like you need some helibars, soft luggage and heated grips if it ever gets cold in Houston.
   
 
Old 07-14-2009, 10:01 AM   #9
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From: houston,tx
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my bike is all stock except the d&d slip-on.i still get between 130 miles to a tank.well the last bar starts blinking at 130 miles.with just a pc III AND 17 tooth front sprocket,what kind of milage are you guys getting?and does the pc lll smooth out the throttle response and hp and torque through the real world rpm range?
   
 
Old 07-14-2009, 05:18 PM   #10
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From: Hackettstown N.J.
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My '02 has stock gearing, PCIIIR, Devil exhaust, K&N filters +3degrees timing and delivers a consistant 37mpg @ 75mph or below. My old ZX11 used to give 45-50mpg under the same conditions, even though it pulled a lower gear. I'm not exactly aerodynamic at 225 lbs. and 6 ft. tall either. Maybe the B models are just more fuel efficient! I've never yet reached my goal of 40mpg yet, although I have seen 39.
   
 
Old 07-15-2009, 01:40 PM   #11
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ships funny,, almost a 007 set up with the flip up doo hicky and NO2!
i run the Helis and a Corbin amongst other stuff,, those 2 should be first for the long rides,, maybe even gear her for the highway. i am a tad more than 225 and 6 foot,, i never take a chance,, i pull in for fuel @ 120 miles!
   
 
Old 08-12-2009, 10:41 AM   #12
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From: Maryland
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I Ride: 2003 ZX12R
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Quote:
Nitrous oxide, radar/laser jammer, mirror block-offs, flush mount turn signals, license plate flipper.

Shipteey, this made me laugh!!
   
 
Old 08-12-2009, 12:11 PM   #13
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Forgot about the cut down tank with the spare fuel cell in the tail section....for those "county to county" persuits...
   
 
Old 08-12-2009, 12:12 PM   #14
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persuits was a type, I meant to say nice ke-ruuz.
   
 
Old 08-13-2009, 12:29 PM   #15
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a double bubble screen , a comfy seat and a throttle miester
   
 
Old 08-15-2009, 11:40 AM   #16
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From: U.K peterborough
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tried the 17 tooth this week and went back to 18.

found it made the bike a bit more viby round town and a bit to urgent plus speedo is a fair bit out and £75 for a healer is a bit steep.

so not a good combo in speed trap Britain.

as for double bubble PC and removing the cat and kleen air crap plus the resetting the TPS all good on the 12r

i get a bit of tingling in the pinkys so if your going to do big miles risers might be a good mod too.
this is only a prob at legal speeds which is right on the viby 4-5k mark

Last edited by lonner; 08-15-2009 at 11:47 AM.
   
 
Old 08-16-2009, 04:30 AM   #17
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From: South Florida: Home of the 9/10th's
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Wow I'm shocked nobody has mentioned a sport touring tire, gps, or 19 tooth countersprocket to keep the rpms lower at highway speeds.

Also I believe I read a post from Mr.Vincent Hill a while back where he said filling the handlebars with bb's takes away vibration. May want to do a search on that.

Other than that, gut the cat and get a pc3usb. Have it tuned for fuel economy below 80% tp.
   
 
Old 08-16-2009, 08:17 AM   #18
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From: U.K peterborough
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Quote:
Wow I'm shocked nobody has mentioned a sport touring tire, gps, or 19 tooth countersprocket to keep the rpms lower at highway speeds.

Also I believe I read a post from Mr.Vincent Hill a while back where he said filling the handlebars with bb's takes away vibration. May want to do a search on that.
Other than that, gut the cat and get a pc3usb. Have it tuned for fuel economy below 80% tp.


ill give that a try with lead fishing shot
as the vibes get on my tits but then i think its an age thing too as it never bothered me when in my 20's and early 30's so all you young pups have this to look forward too
   
 
Old 08-16-2009, 10:54 AM   #19
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From: Cadiz, KY USA
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Quote:
WTF? I get maybe 110 if I'm lucky. I've got a '00 with a full tsukigi titanium exhaust, PCIII USB with a very mild map, and -1 on the front sprocket on the rear. I ride about 25 miles a day, and on the 4th day after a fill up, I'm well into the red.

what kind of setup do you have? All stock? mods?

my mileage blows
In my experience, your mileage is not that bad... The ZX-12R is NOT a machine designed with high mpg as a priority...

Tazio's mileage is pretty remarkable, actually... I suspect that his riding style is different from yours (& mine, for that matter)...

As a general observation, I also am using a 17 toofer on the front, and this mod drops your mileage by about 5.66%... The you have on the rear sprocket also hurts... Your PC's "mild map" could possibly be rich, adding to the fuel consumption... We all tune & mod to meet our requirements... That said, the 12 is not a good platform for a mileage machine, IMHO...
   
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