Bandit Alley
MODEL SPECIFIC => SUZUKI BANDIT 250 & 400 => Topic started by: Chris H on May 19, 2009, 06:43:14 PM
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On Jap import B4's you will find an extra wire that goes from the gear selector to the cdi with a bullet connector under the seat. This wire is green with a yellow tracer and sends a different resitance for different gears to the cdi. It is used to restrict the B4 to 180kph as set by Jap law. In the first three gears the resistance is 1.5k ohm, neutral is zero and set by the black wire and 4th 5th and 6th 1k ohm. To derestrict the bike we need to tell the cdi that it's always in the low gears and so set at 1.5k ohm. To do this-
You will need one 1.5k ohm resistor, one male bullet connector, one female bullet connector, 6" of 1.5mm electrical wire and one ring end/bolt on type connector.
You crimp one end of the resistor into the male connector and fit this connector into the G/Y wire under the seat from the cdi, then slide the other end of the resistor up inside the female connector so as it acts as a cover/sleeve for the resistor and put the 6" wire coming out of the end of this connector and crimp them together, to the other end of the wire you crimp the ring connector and this is bolted to the frame under the seat. You leave the G/Y wire from the gear selector loose and connect the black up as usual. This will now tell the cdi that it is in the lower gears and the cdi will think that it never gets to 180kph and full power will always be available.
(http://i300.photobucket.com/albums/nn2/ChrisHank/res001.jpg)
Parts needed.
(http://i300.photobucket.com/albums/nn2/ChrisHank/res002.jpg)
Resistor crimped in male bullet connector.
(http://i300.photobucket.com/albums/nn2/ChrisHank/res003.jpg)
Resistor crimped inside female connector with wire out of the otherside.
(http://i300.photobucket.com/albums/nn2/ChrisHank/res004.jpg)
Finished wire with ring connector fitted.
(http://i300.photobucket.com/albums/nn2/ChrisHank/res005.jpg)
You can use shrink tube to seal the connectors and give a professional finish.
Pleases note that no animals were in any way harmed or ill used during this operation!
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So how would you do it on the American models? Similar or different?
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Thanks Chris!
I'll be doing that today at some point :thumb:
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So how would you do it on the American models? Similar or different?
Hi Vid,
Did'nt know the US model was restricted. Its for the 180kph restricted Jap bike.
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It may be similar, dunno. Does anyone know if you can de-restrict the US models the same way?
By the way, your camera should have a setting for shooting close-ups, typically it looks like a flower icon, like so:
(http://i75.photobucket.com/albums/i312/vidrazor/close.jpg)
Those close-up shots are totally out of focus! :bandit:
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I am just about 100% sure that US models are unrestricted.
180kph is 110 or so mph and that is easily achieved for me anyway.
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I believe they are restricted. Fourth, fifth and sixth gears, IIRC. I remember actually being in a thread about it, but it never confirmed how to de-restrict them. It's uncertain whether you would screw anything up if you tried this technique on the US models.
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Excuse the pics, my camera is pants. As far as i know only the Jap bike has the green/yellow wire. You should find that the non restricted bike only has a black wire from the gear that is the neutral sensor.
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Hmmm, I have a green & yellow wire coming out of my unit. Check out my CDI below and look at the left-most cable. Perhaps there's a similar arrangement on the US models.
(http://i75.photobucket.com/albums/i312/vidrazor/cdi.jpg)
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By the way, your camera should have a setting for shooting close-ups, typically it looks like a flower icon, like so:
(http://i75.photobucket.com/albums/i312/vidrazor/close.jpg)
Those close-up shots are totally out of focus! :bandit:
Hey! How'd you take a picture of your camera???? :stickpoke: :bigok: :bandit:
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>>Hey! How'd you take a picture of your camera????<<
Easy. Just use the self-portrait mode. :bandit:
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Hi Vid,
Correct me if im wrong but im sure ive seen those pictures before :roll:
You want to follow that wire to the connector near the battry and i think you will find it connects up with the G/Y and a blue fabric coverd wire (neutral) from the gears.
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Thanks Chris H
My B4, a jap import which is still restrict, I alway know it was since the DYNO, never could find how it was restricted, Bandit Ally BSS is a great place. :bandit:
Will do it within few days :motorsmile:
Unique
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Hi Unique,
PM me your address and i will send you one as you have to buy 10 resistors at a time.
Chris.
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>>Correct me if im wrong but im sure ive seen those pictures before<<
Yes I posted this once before but I was never sure if disconnecting this on a US model would work or screw something up. So if the wire goes to where you're saying then all I have to do is ground this wire via a 1.5kΩ resister? As I said my hesitation was that I didn't know if this could be different for US model and possibly wind up blowing out the digital igniter.
BTW, would this also override the rev limiter?
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Hi Vid,
Thought id seen then before :motorsmile: ye take it to ground with the resistor and ive not noticed any difference with the limiter, it still cuts in which is a GOOD thing in my book. Has your B4 got twin discs cuz only the jap bike should have the G/Y wire, the rest only get 6 wires and no G/Y.
Chris.
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Hmmm, no, my bike has a single front rotor. I'm beginning to think the bike may have been hacked from different bikes before I bought it. The guy who sold it to me had no maintenance records of it, which I thought was a bit suspicious, but I took a chance on it anyway. I'll have to follow that cable down to see what it does.
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Hi Chris
Thanks, I take you up on your offer :thumb:, Just let me know how you want paying. I send you my address by PM later today, Excuse me, Chris, being a new member PM means Personal Message!.
Now back to 'Derestriction Jap Bandit', As you said, The Jap bike has twin disces as well as a stainless exhaust and not black. I've been looking at my Suzuki 400 manual for UK/W.Germany/USA and Canada models. Which is were the first pic comes from showing 6 wires and not the 7 wires that the next pic shows which is my bike CDI. Which is a 1989 model, Is there any difference to the later bandits bike !.
But looking at Vidrazor, pic of this CDI post while age. I would say he got a Jap import, As you said its only the jap bandit that has 7, Which were only made for the jap home market, Which some were later shiped to various counties as gray imports.
The only thing I not sure of, Are you saying in your yesterdays post, That the wire running along side the battry is the wire were we plug the resistor in to or not !.
(http://i590.photobucket.com/albums/ss348/u-turn_bucket/Picture403-1.jpg)
(http://i590.photobucket.com/albums/ss348/u-turn_bucket/Picture399-2.jpg)
If you look closely you can just make out 7 wires on my CDI, not very good pic.
:thanks:
Unique
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Yeah, I'm not sure what the story is with my bike. It's looks like a US model:
(http://i75.photobucket.com/albums/i312/vidrazor/new-yawk.jpg)
But that CDI is strange, eh? Also, there is an ID tag on the frame that looks like it may not be the original, like it was transfered from somewhere. I'll take a close-up of that to show what I mean. Isn't there suppose to be numbers on the frame and engine that match? I think I remember looking at that when I first got the bike and they didn't. I took a chance on the bike anyway because I loved it the moment I saw it. Never had any problems with registration or anything like that. While it's had some quirks here and there it's been OK so I made out fine.
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Hi Vidrazar
Yes Strage, Its does looks like US model. Is it possible that a previous owner has had it shipped back to Japan as part of a Household/Job move. And had to have it restricted to be able to ride it, Then later had the bike shipped back to the States. Its the only thing I can think of at the moment.
Iam a proprietor of a small removal company myself and customers do ship cars and bikes between countries at times.
The engine and frame numbers are difference as far as I can remember, But whether the engine number is spamped somewhere on the frame I not sure. :roll:
It seams I may be wrong about the exhaust as its appear that some of the later German and other countries bandit had the same exhaust as the jap import models.
Nice clean looking bike :thumb: and some back drop
Unique
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Ye at the side of the battery you got a group of wires and you will find a blue with fabric that is the neutral wire, its got a square plastic plug and the G/Y with a bullit connector. Leave the blue connected so the cdi knows when your in neutral(this is the only one that the non jap bikes have) and then connect the G/Y cdi side to ground with the resistor and leave the end that goes down to the gear lever loose.
Vid.
Its a nice bike and looks USA style with the disc and pipe but must have had some alteration to the electrics at some point. Love the look of the picture.
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Thanks Chris Know wires you mean
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hi guys,
my jap model VC ´95 is restricted to 11800rpm, my brothers ´91 slingshot makes 14000rpm
I want that too, is this the same thing chris did?
regards form germany
jens
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Hi Jen's
is it 11500rpm in every gear or the top two? if every gear then you got a problem! the restriction should kick in above 180kph so you may get 11500rpm above this.
Chris.
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I noticed it wehen I was riding together with my brother
it was in 2nd/3rd/4th gear I think, so maybee all gears.
it´s a 1995 VC model, in wiki there are 53HP, the 91slingshot should have 59HP with unrestricted carbs and does 14ooorpm.
my carbs are unrestricted but the restrictor comes 11500 or 11800
is it possible to get the full power?
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Ive got a VC and before i worked on the motor it was dyno'd at 54BHP at the wheel which would be close to 59 at the crank which the factories use. Can you here the VC activate at about 10000rpm because if its not you will not get the higher rpm as the 'low cam' profile will give peak rpm at a lower range and the power will drop off very quickly and not rev out. If you look at the VCC video in the maintenance section there is a graph showing the power curve for the low and high cams and the low would give this kind of top rev range.
Chris.
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I´ve got no example or other VC to compare here in germany, maybe my one is the only one
but passing 10ooorpm I can here a short sound and I think its the variable valve controll
the bike is running very well, the thing that annoys me is the restricor coming at 115oorpm,
I´ve to change the gears a lot more than my brother and I always hit the restrictor
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My VC when standard would rev to about 12800 but would not go out to 14000. I fitted a Daytona derestriction box and it will go to 13300 now. I wonder if Suzi lowered the limit on the VC due to all the extra metal in the cam/cam follower system.
Chris.
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how much has your enginee now?
what else is done?
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Hi U Jay,
Dont know what its got at the mo, but will get it dyno'd when ive money spare. After head work (skim and valve seats), crank/conrod work and balance, cam sprokets sloted and i think 5deg on the inlet, general blue printing, daytona ignition advancer, full exhaust system and k&n/carb work it produced 64BHP, but its had a JE 440 kit since and i ran an oilcooler but now have a small on to fit that is cooled by the water and a bigger rad so im hopefull of a bit more. :trustme:
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3 wires to the little plug on the cdi means restricted in 5th and 6th gear the bike does not go any faster in those gears 4th grear feels like the bike should feel pulls all the way to red line 5-6th gear feel dead hence 5th -6th gear through some corners on the street or track where you would normally be in 4th maybe bottom of 5th.
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Hi, sorry to bring up such an old topic but i was hoping i find some help here.. my CDI is restricted:
(http://i39.photobucket.com/albums/e167/silversurfer2012/2.jpg)
I was wondering which bullet connector should i ground with the resistor.. can anyone help me with the two photos below?
(http://i39.photobucket.com/albums/e167/silversurfer2012/3-1.jpg)
or
(http://i39.photobucket.com/albums/e167/silversurfer2012/1-1.jpg)
Any help is appreciated!
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Dont touch the one that goes to the starter relay. If you follow the green with yellow tracer wire from the cdi (picture 1) it goes to the gear sensor near the front sprocket. disconnect under the seat, leave the sensor end loose and take the cdi side through the resistor and to earth.
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Dont touch the one that goes to the starter relay. If you follow the green with yellow tracer wire from the cdi (picture 1) it goes to the gear sensor near the front sprocket. disconnect under the seat, leave the sensor end loose and take the cdi side through the resistor and to earth.
So is the wire im suppose to ground in the second picture? If you could you take a picture and show me which particular wire, i would be very greatful to you! Thanks for your reply.
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Hi, im unable to take a picture as my bike is a VVC and has a 12pin cdi. The wire in the second picture looks like it maybe as it has the correct connectors. If you follow the green/yel from the cdi it should go into a sleeve with a blue fabric coated wire (neutral) this goes down to the sensor just under the front sprocket.
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Hi, im unable to take a picture as my bike is a VVC and has a 12pin cdi. The wire in the second picture looks like it maybe as it has the correct connectors. If you follow the green/yel from the cdi it should go into a sleeve with a blue fabric coated wire (neutral) this goes down to the sensor just under the front sprocket.
Hi Chris, thanks for your help!
Will go try out now.
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the neutral-gps cable connectors they are actually behind the regulator rectifier!
Thats where those suckers are! hehe.. .thanks