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Main Area => General GS500 Discussion => Topic started by: Nikolas on June 30, 2007, 04:21:52 PM

Title: GSEX?
Post by: Nikolas on June 30, 2007, 04:21:52 PM
Yes, I did a search....  I know I saw a picture of a GS with an EX500 engine in it here at one point.  It had cbr wheels on it.  Can't find it now.  My friend bought a former ex racebike and has a spare built top end he'll give me.  I'm still going to try to get the gs engine working right (its pretty close, a little lean on the low end with 125/40/1shim/3turns though, gonna fiddle with the pilot screws more.)  It's just an idea that's been dancing around in my head...   Anyway, I'm mainly trying to find a pic of that one, or any one, or any other information.

Thanks,

Nik
Title: Re: GSEX?
Post by: Egaeus on June 30, 2007, 06:12:48 PM
Don't know anything about the GSEX, but is your tank rusty at all? 
Title: Re: GSEX?
Post by: Nikolas on June 30, 2007, 06:21:22 PM
I etched it out with some phosphoric acid, so not really.  I can see some sediment in my fuel lines but its not getting past the low point, and even if it did, it wouldn't get past the filter.
Title: Re: GSEX?
Post by: Egaeus on June 30, 2007, 06:39:10 PM
What kind of filter?
Title: Re: GSEX?
Post by: Onlypastrana199 on June 30, 2007, 06:57:03 PM
Is this pronounced GS-EX or G-SEX? sorry..i'm rocka nd rollin
Title: Re: GSEX?
Post by: Nikolas on June 30, 2007, 07:19:10 PM
Quote from: Egaeus on June 30, 2007, 06:39:10 PM
What kind of filter?

Clear plastic cone with a sintered bronze element.
Title: Re: GSEX?
Post by: Egaeus on June 30, 2007, 07:54:27 PM
That won't catch the small particles.  Believe me, I fought with this same problem for months.  There are rust particles that can get through the filter and cause problems.  It runs lean unless you open the throttle all the way open, then it runs fine. 

Try this: don't turn the carbs upside down!  Take them off, and drain the bowls through a coffee filter.  Set it aside to dry in the sun.  Then, still without turning the carb over, take the bowls off and check the bottom for rust particles.  Check the coffee filter after it's dried.  If you see any evidence of rust, that's probably your problem. 

I got a big-ass purolator cellulose filter for carbureted vehicles to filter the rust out until I get the new plastic painted to match the new tank.
Title: Re: GSEX?
Post by: Nikolas on June 30, 2007, 08:59:47 PM
hmm.. now that I think about it that could be it since I don't recall it behaving this way when hooked up to the plastic "bike IV" I made from a coolant overflow tank.
Title: Re: GSEX?
Post by: makenzie71 on June 30, 2007, 10:22:19 PM
there's been a few GS/EX setups...I consider them the ultimate in ghetto cool rides.  You get a bike with a 75rwhp breaking point on a far superior chassis.  i really wanted to pick up a GS with a shot motor to put my built eX500 race engine in.  I think 70 reliable wheel horsepower is exactly what theh zooki needs.
Title: Re: GSEX?
Post by: ratz on June 30, 2007, 10:36:02 PM
I guy on here named   BLONG   has it.
Search ex motor
There is a lot of work to itcutting the frame, welding new motor mount tabs, aligning the chain.
If you are in San Diego, I can give you some numbers of a fabricator who has already worked on one.
Title: Re: GSEX?
Post by: TarzanBoy on July 01, 2007, 07:58:04 AM
Quote from: makenzie71 on June 30, 2007, 10:22:19 PMI think 70 reliable wheel horsepower is exactly what theh zooki needs.

Yeah,  Suzuki should have come up with a GS-ish bike with slightly more robust specs

*cough*Katana*cough*SV-650*cough*Bandit*cough*
Title: Re: GSEX?
Post by: makenzie71 on July 01, 2007, 08:03:45 AM
Katana's weigh 500lbs.  SV650's are V-twins.  bandits are I4's.  As it is, the gS can't compete with the EX just because of power, despite having a superior chassis...hell, a little wrenching and the EX is every bit as quick as the SV. 

The GS needed 20 more hp, at least.

All personal opinion, of course.
Title: Re: GSEX?
Post by: Nikolas on July 01, 2007, 10:44:13 AM
Quote from: ratz on June 30, 2007, 10:36:02 PM
I guy on here named   BLONG   has it.
Search ex motor
There is a lot of work to itcutting the frame, welding new motor mount tabs, aligning the chain.
If you are in San Diego, I can give you some numbers of a fabricator who has already worked on one.

Thanks, that found me the pic of the one I saw before, and I actually am in San Diego.
Title: Re: GSEX?
Post by: GSRider on July 01, 2007, 11:05:15 AM
The GSX-650F is coming out in '08. Inline 4 to replace the Katana. Looks good too.
Title: Re: GSEX?
Post by: TarzanBoy on July 01, 2007, 07:27:32 PM
Quote from: makenzie71 on July 01, 2007, 08:03:45 AM
Katana's weigh 500lbs.  SV650's are V-twins.  bandits are I4's.  As it is, the gS can't compete with the EX just because of power, despite having a superior chassis...hell, a little wrenching and the EX is every bit as quick as the SV. 

The GS needed 20 more hp, at least.

All personal opinion, of course.
I would have kept my GS if it had had more power, but the extra power would ruin its new-rider rideability, in my opinion.  No bike will be *exactly* like a GS, but then again, neither would a GS if it had all that extra torque (btw, extra torque on a 1-front-rotor bike is a bad idea)

Katanas carry their weight a lot like a GS does...  long wheelbase and narrow rear tire.  Its not quite as flickable as a GS, but its close.  The torque on the low end is also quite close.  In terms of shape, riding position, aesthetic and nakedness, the bandit or the SV is as close as you're going to get.

As for the EX-500.... they (and their 80's fairing) are ugly, ugly ugly.  The extra ~10hp they generate is a semantic difference.  They would be way more popular if Kawasaki would get off their butts and design a new fairing.
Title: Re: GSEX?
Post by: makenzie71 on July 01, 2007, 08:14:08 PM
...EX650.  The 500 is going to phase out.

the only thing the EX ever needed was a US-bound no-faired version.

And I assure you...it's more than 10hp.
Title: Re: GSEX?
Post by: spc on July 01, 2007, 08:17:44 PM
ummm you mean EN650 and the stats on it are VERY similar to the SV :icon_rolleyes:
Title: Re: GSEX?
Post by: makenzie71 on July 01, 2007, 08:22:34 PM
EN was originally introduced as "EX650R"...never broke the habbit...sorry.

And, like I said, an afternoon of wrenching and the EX500 will walk an SV...for a little less money, even.  Admittedly I had a little head work and no headgasket, but mine was grazing 80rwhp.  65+ is well within reach without really stretching.
Title: Re: GSEX?
Post by: spc on July 01, 2007, 08:24:00 PM
Dunno......the EN is a very competent machine though

Title: Re: GSEX?
Post by: Jay_wolf on July 01, 2007, 08:24:40 PM
Your giving me expensive ideas Mak :thumb:
Title: Re: GSEX?
Post by: spc on July 01, 2007, 08:26:57 PM
Jay: instead of swapping out engines,  See if you're satisfied with a boring and cam reworking.......maybe mill/port the heads.   But I wouldn't do more than bore to 555 without having a really good deal at a metal shop :thumb:
Title: Re: GSEX?
Post by: Jay_wolf on July 01, 2007, 08:33:37 PM
Well yea , well , if i do it , and i dont like , ill sell it , im sure theyre would be a ton of ppl in the uk wanting a 555cc .im not sure , where to start , eg , who would do it , a machine shop. but would thye no what there doing ?  :dunno_white:
Title: Re: GSEX?
Post by: ben2go on July 02, 2007, 12:23:06 AM
NINJA Motor?Hell, I'm thinking about a big American V8 between the frame rails.  :laugh:  :laugh:  :laugh:  :laugh:  :laugh:
Title: Re: GSEX?
Post by: Jay_wolf on July 02, 2007, 09:24:17 AM
Rather have a 2 litre turbo with 380 BHP  then a Stonking V8  :thumb:
Title: Re: GSEX?
Post by: ben2go on July 02, 2007, 01:57:41 PM
Quote from: Jay_wolf on July 02, 2007, 09:24:17 AM
Rather have a 2 litre turbo with 380 BHP  then a Stonking V8  :thumb:

Actually,I agree.light and power full.
Title: Re: GSEX?
Post by: makenzie71 on July 02, 2007, 02:34:41 PM
haha 2-liter turbo...sure 380hp but youor GS has more torque.
Title: Re: GSEX?
Post by: Nikolas on July 02, 2007, 06:17:26 PM
(http://www.gaugeplates.com/products/supra/mySuprashirt.jpg) :laugh:
Title: Re: GSEX?
Post by: Jay_wolf on July 03, 2007, 12:45:15 AM
Your right mak , jap engines have very little torque , just high reving , and in the evo case , all its speed and power is the damn turbo lol , they did this test on top gear , and they had a Evo 8 the 360 FQ  , and a 1.4 litre Diesal , put it in 5 gear and had a 'drag' the 1.4 litre diesal won....