mach111
Novice Class
Posts: 81
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posted December 05, 2002 11:08 PM
nasty stutter/surge,help
Above 3k r.p.m's my bike is great.i know alot of 00-01 12's run a little nasty down low,but i have rode enough other ones to know i have some other problem i cant disect.of all the 12's i rode there is a slight hesitation maybe from 1-3k.rpm's.mine is real bad both hesitating and surging.most friends guessed map.i went down my road today and put her in 1st,eased out the clutch and gave it no gas.i was doing gps'd 8.8 m.p.h in 1st gear.most bikes would just idle along here,but mine bucked REAL bad back and forth surging.and of course riding anything below 3k and gearing down it bucks.anybody reccomend adding fuel or leaning?or what else?basically i figured i need change below 40% throttle position and below 3k r.p.m's.i unplugged the p.c and it still does it.any ideas where exactly and how much fuel to add or subtract.
  
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Hells Dark Lord
Needs a life
living life, and loving it.
Posts: 7981
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posted December 06, 2002 12:53 AM
mine did that too after i added the exhaust, but once I played with the map, it got better....still not as smooth as it was stock, but goodenough. I am going to take it to a shop and have a custom map made once I get the mods done to it...hopefully that will work it out
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ZHooligan
Moderator
Post Whore Extraordinaire!
Posts: 3829
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posted December 06, 2002 01:07 AM
 Edited By: ZHooligan on 6 Dec 2002 01:09
I had that problem a couple of times. First it was the Power Cpmmander taking a dump and then it was a matter of mapping. I loaded up the latest map from Muzzy and cleaned things up at the bottom. I tinkered with the mid and upper range of the map but left the bottom end alone and no stutter. And frankly the TiForce exhaust makes the bike runn fantastic even at the bottom, I can run in 6th gear at 30 and roll the throttle on and she just pulls with out a sputter.
I would start by checking out the latest maps from Muzzy.
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kcadby
Pro
Posts: 1733
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posted December 06, 2002 10:03 AM
Edited By: kcadby on 6 Dec 2002 10:07
I had one guy here that was ready to sell his 02 12R because of how it ran down low (no joke)...I did a complete custom map for him and now??? he says he's gonna sell his 02 Busa and buy another 12 (NO JOKE!!!) 
Oh ya...the 12 he was gonna sell is now the 210+HP 1361 I posted about 
(It was stock w/Muzzy pipe when he hated how it ran down low...before I mapped it)...
He LOVES how it runs as a 1361 since I mapped it also... 
Long story short...NOTHING beats having a custom map done on YOUR BIKE by someone that knows what they are doing...
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ZHooligan
Moderator
Post Whore Extraordinaire!
Posts: 3829
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posted December 06, 2002 10:38 AM
Essentially I'm in the same boat. My 210 hp 1361 idles, and runs smooth as butter with our map and all of my mods. They will run nice you just have to take the time to set them up. A custom map (I am a dyno owner) is cheap when you consider what is done and the results.
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zxlnt
Needs a job
Kawpuke Extraordinare
Posts: 2853
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posted December 06, 2002 11:46 AM
I may have a map for ya that might help. I'll find it and send it to ya if ya gimme ya email addy..
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mantis007
Novice Class
Posts: 28
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posted December 06, 2002 02:34 PM
Edited By: mantis007 on 6 Dec 2002 14:35
Hey Kevin, you mapped mine back in June and never got the low end sorted even after 7 hrs. You were gonna find a map you did that fixed the lowend and send it to me. I have sent you several emails about this with no response. Did you get my emails??
Thanks
Tony in St. Augustine
01 Silver
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mach111
Novice Class
Posts: 81
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posted December 07, 2002 12:32 AM
The closest custom mapping place is hours away.but was everones surge Real bad?or just dealwithable?
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VincentHill
Needs a life
Posts: 6520
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posted December 07, 2002 06:02 AM
Look at some of my Post on Labusas and let me know if you want a copy of the maps I refer to! Also need to know what pipe and mods (You do not have a "Micron" do you??
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Made History @ Daytona and still one fast old man!!
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psycho1122
Pro
Posts: 1608
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posted December 07, 2002 09:31 AM
Mach; Have you addressed your Air Screws on the Throttle Bodies?
I would make shure to get those adjusted BEFORE mapping. Most 12's w/ pipes like to have the scews 2 turns out to start w/!!
I have seen alot of 12's w/ the screws closed or only a 1/4 to 1/2 turn out and no four are at the same adj.
This adj. will allow your throttle response to be SMOOOOTH right off the bottom.
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You say PSYCHO like it's a BAD thing!!
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kcadby
Pro
Posts: 1733
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posted December 07, 2002 10:48 AM
MANTIS!!!
I'm sorry I didn't answer your E-mail...I haven't been on-line at home for a long time...
PLEASE BRING YOUR BIKE BACK TO THE SHOP!!!!!!!!!!
We found out (a couple of bikes after your ordeal) that we had a bad pump (A/F ratio) on the dyno 
That's why it took so long...AND why your bike wasn't right when it left...please forgive the delay in response time...I never did forget about you or your bike...
Bring the bike back and we will re-map it (no charge...obviously)...
I don't want to "send you a map" because...every bike realy does need it's own map...
Call and tell whoever answers the phone to make you an apointment to re-map you...I already OK-ed it with Ryan...
Sorry again for leaving you out there for this long...I've been VERY busy here...spending MANY extra hours at the shop trying to get everything done...
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mach111
Novice Class
Posts: 81
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posted December 07, 2002 06:03 PM
Edited By: mach111 on 7 Dec 2002 18:05
psyco:are you talking about the screws that have the safety metal cover on them you have to drill/tap out? not the ones that get turned to sync the tb's right?the hidden ones were turned ou 3/4 of a turn on mine(as is on all bikes i have seen).basically my budddy sync the tb's so all 4 were even on the merc.tubes.than he said since i had a pipe the screws he had to turn(the ones he tapped out with the cover)needed to be turned in a half a turn.so as of now they are out 1/4 turn as to 3/4 turn from the factory.i had addressed this issue before with a buddy of mine and he said that he kept his on the stock 3/4 turn out because he tried going out 1 than 1.1/4 -2.he said he left them at 3/4 because his a/f meter was showing too rich with them turned anymore than the factory 3/4.
i dont think thats my problem(maybe they need to be back at 3/4 because when they were at 3/4 the bike still did it,thats why we put them 1/2 turn in.
i'm just really stuck here on options.most of my friends with z's dont even mess with those screws,they keep them at the factory 3/4 and they dont have the surge problem,i'm sure cuz i can see the safety cover is still on top of the screws where they could not have turned them in.so maybe i should set em back to the factory 3/4 and try and play with a map vince is going to send me????????????????????
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mantis007
Novice Class
Posts: 28
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posted December 08, 2002 08:11 AM
Thanks Kevin!!! I'll call and try to setup for next Sat. I appreciate it
Tony
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swft
Needs a life
Full throttle!
Posts: One MEEEEEELLION
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posted December 08, 2002 06:14 PM
Let us know how it goes, Mantis!
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psycho1122
Pro
Posts: 1608
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posted December 08, 2002 11:15 PM
I am talking about the "Airbleed" screws in the TB's. I have not come across a set that were ALL 3/4 out (some even come from the factory CLOSED!). Turning these out will NOT richen the idle mixture. It will help w/ the off idle transition.
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You say PSYCHO like it's a BAD thing!!
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mantis007
Novice Class
Posts: 28
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posted December 10, 2002 06:48 AM
hey Kevin, I scheduled the remap for this Sat. morning at 9 - I'll see you then. Any idea how long it will take? I'll let you guys know how it went.
Thanks
Tony D.
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Hells Dark Lord
Needs a life
living life, and loving it.
Posts: 7981
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posted December 10, 2002 06:55 AM
hey I be needin a custom map...where are you al located, and how much does it generally run? The closest place to me that does maps is in Charleston SC, and that is a couple of hours from me? thansk for any info that you all might have....Jim
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When in doubt, lean farther and go faster....
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kcadby
Pro
Posts: 1733
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posted December 11, 2002 10:07 AM
mantis...
It should take about 2-hours (for the complete map) that includes the time I spend off of the tunning link to smooth out the low end...
HDL...
We are located in Jacksonville Fl.
Stock Mild to Wild
2012 Blanding Blvd.
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Hells Dark Lord
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living life, and loving it.
Posts: 7981
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posted December 11, 2002 10:38 AM
hey kc that is perfect for me, i will have to look you boys up when i get home and have one done, wanna finish all the mods to it first, then I will ride it down, might have to get slug and have him go to. Hell get harry and dave to show and we can have lunch while ya 'll map it, then we can go ride for a bit.....whats something like that run so I can start putting away for it. I dont know if it matters but i run a PCII, I am stupid when it comes to that stuff....just if ya can give me a general figure so I can plan it....the g/f has everything planned for months..so I have to giver her some notice....lol
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When in doubt, lean farther and go faster....
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kawachan
Pro
Posts: 1031
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posted December 11, 2002 12:07 PM
Kcadby and ZH couldn't say it any stronger CUSTOM map is where it's at!! I couldn't believe the difference when I got my bike mapped.!! I had balked about spending that much $$$ just to have someone map my bike. Shoot, I just "thought" it was a lot of money. Believe me, best money I ever spent was that mapping session. Idles and accelerates BETTER than stock. One thing most peiple need to understand is every bike is different. Of course, with a lot of patience you could improve it enought to ride around. Custom map made by an experienced operator will yield the best driveablity/hp/satisfaction all in a few hours.......
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RED NINJAS RULE!!
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kcadby
Pro
Posts: 1733
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posted December 12, 2002 06:18 AM
We get $200 for a full-map...that includes me fiddling with the low-speed manualy...AND putting the Carb-Stix on the throttle bodies...
HDL???
Are you sure you have a PCII???
Is it a early model BUSA???
We get $300 for PC2s becuase the Tunning Link won't work on PCIIs so...I have to map them manually...
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Hells Dark Lord
Needs a life
living life, and loving it.
Posts: 7981
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posted December 12, 2002 11:20 AM
might be a III.....I havent been under the seat of my bike in months....due to the fact I am here and the bike is in GA....7000 miles away......I know its not a IIIr though.....
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When in doubt, lean farther and go faster....
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mantis007
Novice Class
Posts: 28
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posted December 15, 2002 07:00 AM
Well I got the bike remapped yesterday. Kevin Cadby was able to smooth out my problem quite a bit - it really runs much better and I really want to thank him and the owner for remapping my bike for free. Kevin spent about 4 hrs working on it and also adjusted the throttle bodies. He says my bike has been the worse he has tuned in the 5-6.5K range - It still is like an on/off switch in that range but quite a bit better. The 2-3K range is MUCH better. My numbers ended up being 175.4 and 99.4. I have the pre stepped Hindle and PC3. If anyone in the Jax area needs a first class mechanic to work on their bike, Kevin is the man. He's very careful about removing parts so as not to scratch anything and truly knows what he is doing.
Tony D.
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kcadby
Pro
Posts: 1733
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posted December 17, 2002 10:12 AM
Edited By: kcadby on 17 Dec 2002 10:13
Thank you VERY much Mantis
Makes me feel GOOD when I get good feedback
If/When I figure out how to help your "on-off throttle response"...
I will be SURE to let YOU know
Your bike realy is extra bad in that range for some? reason???
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