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-   -   SET Valve Mod Question K6-K7-K8 600/750 (Updated w/K5-K6 1k info) (

jk750 02-14-2007 08:08 PM

Count the spring windings in the first and third pic in post #7. Make sure yours is the same - 5 windings.

suzukilover 02-14-2007 09:20 PM


hi im drummer03 02-15-2007 11:55 AM

So i think i have got thi down...
If you wait for the valve in thre exhaust to open up,turn the ignition off,unplug the plugs going into sensor and remove or cut brown wire #30..This is like diong the TRE mod except your gear counter still works?

jk750 02-15-2007 12:43 PM

Dude, seriously... are you trying to drive me to drink. :alky

This has nothing to do with the TRE mod.

suzukilover 02-15-2007 08:26 PM

whats the TRE mod?

jk750 02-15-2007 10:20 PM

Timing Retard Eliminator. Subject for another thread.

Or -

Or - :google TRE. Basically its a plug in resister.

gsxr_fan2003 03-06-2007 07:38 PM

so i figured out over the weekend i dont have a set valve

jk750 03-06-2007 08:26 PM

:onfloor :lao

No worries then, it's already been removed! :lol

600 and 750 models got them in '06. The 1k got it in '03.

gsxr_fan2003 03-06-2007 09:48 PM


Originally Posted by jk750
:onfloor :lao

No worries then, it's already been removed! :lol

600 and 750 models got them in '06. The 1k got it in '03.

but was it supposed to have it? lol

coronadozx 03-13-2007 07:36 PM

what level of mechanical aptitude is required for this project?

i can do the basic maintenance (change oil, plugs), and more importantly, follow instructions well.

will i be okay doing this w/out screwing up the '07 gsxr 600?

jk750 03-13-2007 07:48 PM

Mechanically, it's very simple. Just follow the instructions and you'll be fine.

coronadozx 03-13-2007 08:01 PM

thanks man.

toyotapower 03-13-2007 09:06 PM

hmm, sounds pretty simple. so what exactly is the purpose of the set valve. from what i understand (please correct me if i'm wrong) the purpose is to control the sound waves coming from the exhaust side of the engine. it changes the shape of the exhaust to make the bouncing sound waves return at the correct time (kinda like why a two stroke exhaust has a specific shape). so if im correct on that assumption, what are the possible consequences of taking away this valve?

jk750 03-14-2007 01:45 AM

It's basically a sound reducing device. The US EPA and several other nations' regulator bodies require a 'pass through' noise test, as well as stationary noise requirements. Suzuki, and others, have found a way to pass these tests without significantly hurting performance by closing this exhaust chamber valve at strategic moments commensurate with test requirements.

To pass these tests without this type of valve would require a far more restrictive and power robbing exhaust system.

The sell this device to the consumer as a 'power enhancing feature' to discourage it's removal, or at least to discourage it's disdain.

In fact, it has been shown on the dyno that this type of obstruction in the exhaust collector does not enhance power, but does in fact diminish it to some degree.

If it was a true power enhancer, every racing motorcycle and every aftermarket pipe bender would have them installed on their equipment.

genes81 03-14-2007 03:02 AM

I did this mod tonight after I got out of work and it took me about 15 min. I didnt really notice a difference in the sound but then again it was still in my garage..its was raining outside. One question, when I take my bike in to get serviced, should I reconnect everything to stock so they wont mess with me about the warranty? By the way, awesome directions a:cheers nd pix!!

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