You want to be BEHIND the driver on the cellphone, NOT in front of them so they can run you over when they're not looking. Take the slow lane and watch your mirrors more.

Quote from: J_Walker on December 17, 2011, 05:51:07 PM

Quote from: SAFE-T on December 17, 2011, 02:20:05 PM
You change your mind more than some people change their underwear 

The Katana was a 600 all it's life. It's motor was eventually used in the Bandit 600 which later became a 650. This motor then found its way into the GSX650F.

Problem is there isn't a lot around my area for slow riding... our "normal" roads are 45mph slowest is 35mph, now, our freeway/highways is 80mph Just getting up and past a D-bag on their phone trying not to get killed is a problem on my GS500f, I LOVE the fuel mileage on my bike.. and how nibble the GS is. If I could find a bike that's an upgraded version of the GS. I Don't wanna get a bike any bigger than a 750cc, If I can I'd also like to still have a V Twin engine.. I like my engine being louder than my exhaust. It scares people. Idc about how old the bike is... 1960 or 2010 to me it doesn't matter as long as shes a prudery gas saving, speed wielding bike. For now I will stick with my GS500.

If you want a v twin, I would check out the SV650SF...it has a slightly tighter riding position, is faster and gets similar fuel consumption to the GS...the other option is the one SAFE-T mentioned...the GSX650F (which replaced the Katana 600 & the 750...in other parts of the world the Katana was known as the GSX-F 600 & 750)...the GSX650F is Suzuki's first step up the sport bike ladder...it's much faster than the SV, but uses more fuel...but it isn't bad & has a 20L tank...fuel injection is a nice change...

Later.

Quote from: J_Walker on December 17, 2011, 05:51:07 PM
If I could find a bike that's an upgraded version of the GS. I Don't wanna get a bike any bigger than a 750cc, If I can I'd also like to still have a V Twin engine.. I like my engine being louder than my exhaust. It scares people. Idc about how old the bike is... 1960 or 2010 to me it doesn't matter as long as shes a prudery gas saving, speed wielding bike. For now I will stick with my GS500.

Sorry to be a semantic dork but I think you just mean you like 2 cylinder engines, the GS is a parallel (not V) twin.

-Jessie

More exhaust backpressure (to a point) will grant you more horsepower. However, this will come at the price of low-end torque which you need for cruising around town unless you want to wind her up like a top just to ride normally. The opposite is true of torque. If you want more torque just open the exhaust up more. However, this will exacerbate your original problem.
The above is wrong ,
I have just completed a performance upgrade at minimal cost  and the gs500F responds better in all ranges of revolutions from idle to maximum revs bettor torque  bettor  acceleration and slightly more fuel consumption than standard . They take time to get them tuned right if you have the ability.like any performance mod you cant do just bits and peices and expect it to perform
This is what ive done with exccelant results .
jetting pilot jet# 22.5
pilot screw 3 turns out
mid main jet #60
Needle was from FACTORY PRO  0994G-84M-60U/2  In 2nd notch down from the top
main jet 150
float level  13 mm
timing advance 3 degree's .......  5 degree's was  to much in this engine of mine.
Sparkplugs NGK DPR9EA-9
Air filter i used came out of a GSX 1400 It fitted straight into standard airbox
Air filter #13780-05A00( 6V04) BRACKETED # MAY NOT BE NECESSARY
Exhaust i  removed the first cataylitic converter completly it still has another in the front of the muffler
Ground out the exhaust header to 1 5/8"as it had a weld that had reduced the exhaust down to 1 1'4 "  it now sounds and performs as well as any performance exhaust.
BEFORE ANY OF YOU START KNOCKING THESE MODS JUST GO AND TRY THEM IN THERE ENTIRITY YOU WILL BE SUPRISEDi have spent over 6 months trying different timing settings and many jetting combinations.
THE TIMING ADVANCE DOES WORK i dialed in more advance and got signs of to much advance.
all testing done at sea level in fine weather.
GO TRY THIS .

Quote from: Suzuki Stevo on December 17, 2011, 10:50:57 AM

Quote from: J_Walker on December 17, 2011, 12:09:32 AMI think the Katana is even more under powered compared to its weight class than the GS500f... Lol if anything I'd get an SV650. or something along those lines...

Katana's are sexy, curvaceous creatures! 

Except for when you look at them from the front. The front is ugly enough that I chose a GS500F over a Katana when I was buying my bike. Plus they're heavy, cumbersome, and not a GSXR.

Quote from: Dr.McNinja on December 23, 2011, 12:30:14 PMExcept for when you look at them from the front. The front is ugly enough that I chose a GS500F over a Katana when I was buying my bike. Plus they're heavy, cumbersome, and not a GSXR.

The Katana in my photo is actually considered a Sport Touring bike, touring bikes benefit from having mass/weight. FJR1300's are cumbersome also...until you let the clutch out 

GSXR= Sport Bike
GSXF= Sport Touring Bike
GS500= UJM

Quote from: Suzuki Stevo on December 23, 2011, 01:29:13 PM

Quote from: Dr.McNinja on December 23, 2011, 12:30:14 PMExcept for when you look at them from the front. The front is ugly enough that I chose a GS500F over a Katana when I was buying my bike. Plus they're heavy, cumbersome, and not a GSXR.

The Katana in my photo is actually considered a Sport Touring bike, touring bikes benefit from having mass/weight. FJR1300's are cumbersome also...until you let the clutch out 

GSXR= Sport Bike
GSXF= Sport Touring Bike
GS500= UJM

Ditto...

The GSX650 is heavy - but - only when you compare it to something lighter. Compare it to a C50 Boulevard and you'll think it is light and nimble.

Michael

"Sport Touring" is a term being applied to big, heavy, under-powered pig bikes, the same way "Special" was applied to developmentally disadvantaged children. Whitewashing bikes like that doesn't do anything to raise the bikes up, but does a lot to drag the term down.

The Katana is an old-tech sport bike, with somewhat relaxed ergos. It doesn't really have any touring amenities.

Also, back-pressure doesn't provide any power benefit - simply adding a restricter won't do anything to help improve performance (unless you're jetting is so far off that reduced back pressure exasperates a lean condition.)

There's a lot of science behind exhaust system design, and there are some trade-offs that will increase pressure and reduce performance at certain RPM in order to improve another. With the exhaust, the name of the game is gas velocity - the idea is to keep velocity high so that the exhaust pulse will help suck more air into the cylinder. This must, however, be accomplished without creating so much back-pressure that it kills performance completely.

Quote from: twinrat on December 23, 2011, 02:43:19 AM
More exhaust backpressure (to a point) will grant you more horsepower. However, this will come at the price of low-end torque which you need for cruising around town unless you want to wind her up like a top just to ride normally. The opposite is true of torque. If you want more torque just open the exhaust up more. However, this will exacerbate your original problem.
The above is wrong ,
I have just completed a performance upgrade at minimal cost  and the gs500F responds better in all ranges of revolutions from idle to maximum revs bettor torque  bettor  acceleration and slightly more fuel consumption than standard . They take time to get them tuned right if you have the ability.like any performance mod you cant do just bits and peices and expect it to perform
This is what ive done with exccelant results .
jetting pilot jet# 22.5
pilot screw 3 turns out
mid main jet #60
Needle was from FACTORY PRO  0994G-84M-60U/2  In 2nd notch down from the top
main jet 150
float level  13 mm
timing advance 3 degree's .......  5 degree's was  to much in this engine of mine.
Sparkplugs NGK DPR9EA-9
Air filter i used came out of a GSX 1400 It fitted straight into standard airbox
Air filter #13780-05A00( 6V04) BRACKETED # MAY NOT BE NECESSARY
Exhaust i  removed the first cataylitic converter completly it still has another in the front of the muffler
Ground out the exhaust header to 1 5/8"as it had a weld that had reduced the exhaust down to 1 1'4 "  it now sounds and performs as well as any performance exhaust.
BEFORE ANY OF YOU START KNOCKING THESE MODS JUST GO AND TRY THEM IN THERE ENTIRITY YOU WILL BE SUPRISEDi have spent over 6 months trying different timing settings and many jetting combinations.
THE TIMING ADVANCE DOES WORK i dialed in more advance and got signs of to much advance.
all testing done at sea level in fine weather.
GO TRY THIS .

That post is kind of a jumbled mess but it sounds like you're trying to quote me with the intent of saying I'm wrong.Opening the exhaust up, if NOTHING else, leans the motor out even more and with stock settings on the carb, it's too much. I don't think "seat of the pants" is proof enough of your argument.

You CAN tune the motor for a straight exhaust but unless you are actually someone capable of doing it (trained professional), just throwing parts and money at a bike isn't going to make it go faster.

By far the easiest and simplest method of "fixing" the overall lean running the GS exhibits, is to install a tiny washer on the needles inside the carbs. There is a post somewhere describing how to do this - hopefully somebody can link it. Anybody with more than half a brain and rudimentary mechanical skills could do it. It is, by far, the most effective and least expensive mod there is for the bike. For the cost of a piece of gum...and a few hours of your time, you can make your bike run a whole lot smoother and better.

As far as the ignition advance, yeah I'd bet that would make some small difference but how much? I'd love to see some numbers.

Quote from: burning1 on December 23, 2011, 11:20:25 PM
Also, back-pressure doesn't provide any power benefit - simply adding a restricter won't do anything to help improve performance (unless you're jetting is so far off that reduced back pressure exasperates a lean condition.)

There's a lot of science behind exhaust system design, and there are some trade-offs that will increase pressure and reduce performance at certain RPM in order to improve another. With the exhaust, the name of the game is gas velocity - the idea is to keep velocity high so that the exhaust pulse will help suck more air into the cylinder. This must, however, be accomplished without creating so much back-pressure that it kills performance completely.

It depends. All things being equal, adding an aftermarket exhaust to an otherwise stock GS is going to rob you of power because of how lean they're already tuned - removing backpressure will cause the motor to run leaner...thus exacerbating the issue. You would benefit from an aftermarket exhaust PLUS a needle shim or different jets. Plus, running an already lean-tuned motor even leaner will result in burnt valves eventually. It's generally not a great idea to just throw whatever the hell you've got laying around on the end of the pipe if you want your bike to run the best.

They [aftermarket exhausts], generally speaking, derive their sound from baffling...or lack thereof...which equates to less backpressure versus stock.

Lean condition introduced by an aftermarket exhaust is a fueling problem, not an exhaust problem. Restricting the exhaust flow isn't the solution; jetting properly for the exhaust is.

If you don't want to mess with your fueling, don't touch the exhaust. The GS is fine stock. If you want to mod, do it right.

Quote from: burning1 on December 24, 2011, 01:31:22 AM
Lean condition introduced by an aftermarket exhaust is a fueling problem, not an exhaust problem. Restricting the exhaust flow isn't the solution; jetting properly for the exhaust is.

If you don't want to mess with your fueling, don't touch the exhaust. The GS is fine stock. If you want to mod, do it right.

That's an argument of semantics my friend. It's a fueling problem CAUSED by the exhaust.

Edit: Either way, we're saying the same thing. Modding the exhaust isn't a way to get any real results.

kijona  you obviously know absolutly nothing about engine tuning, my reply was not for your benifit but for the originator of the post  who would understand that what he required was an increase in power .,there by increasing fuel consumption  .seat of the pants tuning is non existant ,it is about reading spark plugs they tell you everything . now get that dummy out of your mouth and stop wasting everyones time

Quote from: twinrat on December 24, 2011, 01:36:28 AM
kijona  you obviously know absolutly nothing about engine tuning, my reply was not for your benifit but for the originator of the post  who would understand that what he required was an increase in power .,there by increasing fuel consumption  .seat of the pants tuning is non existant ,it is about reading spark plugs they tell you everything . now get that dummy out of your mouth and stop wasting everyones time

I think if you took the time to actually type like you have some sense I might have understood what you were trying to say a little better. Please don't blame me for an oversight on your part. Thanks.

I think this thread is getting nowhere fast. When the insults start flying it's about time it be closed. Calling all mods? 

Quote from: Kijona on December 24, 2011, 01:46:24 AM
I think this thread is getting nowhere fast. When the insults start flying it's about time it be closed. Calling all mods? 

Nope. No thread closures here for a handful of questionable posts. It's all left alone and magically it all sorts itself out 

Quote from: mister on December 24, 2011, 01:58:32 AM

Quote from: Kijona on December 24, 2011, 01:46:24 AM
I think this thread is getting nowhere fast. When the insults start flying it's about time it be closed. Calling all mods? 

Nope. No thread closures here for a handful of questionable posts. It's all left alone and magically it all sorts itself out 

Whatevski. :p

Quote from: Suzuki Stevo on December 17, 2011, 10:43:02 AM
Dollar for dollar spent, it has never changed and it will always be the same answer, buying another bike is the ONLY cost effective way for any REAL increased in performance, . I buy a bike and accept it for what it is, if I wanna go faster, harder, deeper, I grab a bike with more ponies in the first place.
I have 6 bikes for a reason! 

+1

80mph is the end of the gs power / comfort zone. Slow down or get a new bike.

+2!!!