Author Topic: B4 Restriction (Read 4836 times)

Spacey86 · « **on:** June 21, 2005, 07:39:47 AM »

My B4 is restricted to 33Bhp, and am getting pissed of at being stuck at 80mph.I know that they are in the carbs, does any body have any idea, on where about inthe carbs they can be found. Has any body else done this on thier bike. and how hard could it be

Thanks Dave

echomadman · « **Reply #1 on:** June 21, 2005, 10:56:51 AM »

easy as pie, take of the tank, take off the airbox, pop off the carb bank and take out the washers between the carbs and the intakes.
put back on the carbs, airbox and tank and enjoy the cheapest HP increase you'll ever get.

Spacey86 · « **Reply #2 on:** June 21, 2005, 02:22:14 PM »

THANK YOU DUDE , am doing it now , will tell you how it goes.

Spacey86 · « **Reply #3 on:** June 21, 2005, 04:23:11 PM »

ok have doneit, goes like stink. BUT the restrictors were not in the intake manifold, they were in the top of the carb under a black screw down cover.

b4cruz · « **Reply #4 on:** June 22, 2005, 12:52:54 AM »

Quote from: "Spacey86"

they were in the top of the carb under a black screw down cover.

is it still restricted?
I don't understand where these top mounted restrictors would be.
Is it under the top cap but over the spring?

Spacey86 · « **Reply #5 on:** June 22, 2005, 06:05:17 AM »

no it is now deresticted, the restrictors were under the black top cap of the carb with a spring running throught the middel of them. They appeared to restict the movement of, a black plastic slider that is around the pin and the air flow into the carb.

echomadman · « **Reply #6 on:** June 22, 2005, 06:54:29 AM »

did you take any pictures? that sounds odd to me, but if its running better

Fred1Boot · « **Reply #7 on:** June 22, 2005, 06:07:49 PM »

Quote from: "echomadman"

did you take any pictures? that sounds odd to me, but if its running better

Yeah, what he said. Pictures please!

Spacey86 · « **Reply #8 on:** June 23, 2005, 07:40:14 AM »

no i didn't but will get some tomorrow and post them, so watch this space

banditcilik · « **Reply #9 on:** October 05, 2005, 04:28:41 AM »

Hey Spacey, you promised something didn't you?

Maniac · « **Reply #10 on:** October 05, 2005, 11:48:41 AM »

Sounds like they had just put something in to restrict the movement of the slides and needles. Probally better than putting something between the carb bank and the engine, in the intake manifold, as restricting the slide/needle's movements would keep the mixture in line whereas just restricting airflow would cause the bike to go rich.

On your new HP!

Herr Tod · « **Reply #11 on:** October 05, 2005, 07:03:35 PM »

There is also a ring in the vacuum lids which is stock for some models. The Japanese 60 HP model didn't have these rings. They prevent the slide from opening completely, holds it back the last 5 mm's. I've removed these rings in mine. Here's a pic of my modded lid.

http://members.home.nl/herrtod/Bandit/GSXR_Shock/1.jpg

billybandit · « **Reply #12 on:** October 06, 2005, 06:57:13 PM »

Urgh those ugly washers. Those ugly cheap looking £150 washers

Spacey86 · « **Reply #13 on:** October 09, 2005, 08:33:55 AM »

ye sorry about that for the sakes of sounding repetitive, will get some and put them on tonight, just been a little busy, with a mates Chop, justy passed my mind thats all

Herr Tod · « **Reply #14 on:** October 10, 2005, 11:46:25 AM »

Here's a pic of the throttle slide restrictors.

These are placed around the pin in the black top cap, which you can see on the pic in my previous post.