How many of you have done something to you GS and regret doing it or did not turn out the way you expected it?
What did you do?
Knowing what you know now, would you have done it?
I am planning on changing out the exhaust, (in my opinion a must) and know that I will have to re-jet. I am not sure how to re-jet or the jets to use. So now I am thinking that maybe I should leave well enough alone.
Need some advise here, please.
Why is changing the exhaust a must, more noise or power??
being a mechanic, as i was learning i learnt something, If I realy do not have the confidence to do something, I have 3 options, don't do it (badish yet safe option as you never learn anything or get very far), Do it under supervision getting help with things your unsure of (good option as you get things done and you learn how for next time) or Rip it apart and see how you go (BAD OPTION as you will f%$k things up alot)
that being said, rejetting isnt to hard as long as you follow all the guides for it, look at the fsm, ask for advice, read over the guide again like 50 times, then if you think you can do it, go for it, if you need help ask someone, or if you think its to hard then leave it alone or pay someone to do it for you
Reasons for changing the exhaust:
I hate the shiny exhaust muffler on it.
I've heard other ppl's GS and like the sound a lot better than stock.
Reading over the threads, the exhaust is one of the Major mod's that will improve ones GS all around. (very restrictive)
The answer is simple: PM Buddha, tell him what exhaust you're going to install and what air filter you're going to run, send him 25$ and you will get the jets you need.
The hard part to rejetting is getting the bank of carbs onto the workbench. Remove the seat, plastics, tank and airbox. Now label, take pictures, scribble hieroglyphs on parchment, do whatever it takes for you to get EVERY VACUUM/FUEL line back EXACTLY where it came from, sparing everybody the post about how you just removed your carbs and now your bike runs like compost.
Once the carbs are on the bench take your JIS screwdriver or small Vice-Grips and remove the screws to the fuel bowls. Once the bowls are off, the main jet is in the middle and the pilot is off to the side. THAT IS IT PERIOD!
SUZUKI GS500F 2004-2008 (http://jetsrus.com/a_jet_kit_street/suzuki_500_GS500F.htm)
STOCK JET SIZE: These values are provided to assist in finding a starting point for jetting. Slight changes for regional variation may occur so the jets in different engines may vary. It is always good practice to confirm what jets are in the carburetor.
main jet 130
slow jet 17.5
Pilot Jet
(http://jetsrus.com/photos/photo_jet_mikuni_N224_103.JPG)
Main Jet
(http://jetsrus.com/photos/photo_jet_mikuni_N102.221.JPG)
SUZUKI GS500E 1989-2000 (http://jetsrus.com/a_jet_kit_street/suzuki_500_GS500E.htm)
STOCK JET SIZE: These values are provided to assist in finding a starting point for jetting. Slight changes for regional variation may occur so the jets in different engines may vary. It is always good practice to confirm what jets are in the carburetor.
main jet 122.5
slow jet 37.5
Pilot Jet
(http://jetsrus.com/photos/photo_jet_mikuni_N151_067.JPG)
Main Jet
(http://jetsrus.com/photos/photo_jet_mikuni_N102.221.JPG)
Suzuki Steve,
Thanks for the link and the advise. I have been spending all weekend reading up and searching threads, pictures, etc on how to re-jet.
For the Buddha, I have been waiting for him to get back to me. I think he is busy as I haven't seen him on here much. I know he is the know all for jetting and he has a muffler I am interested in. So for now I will continue to read and research and hopefully in a couple of weeks be ready to do the deed. :2guns:
As far as what jets to use all I know is you can take a bone stock GS500F and swap the #130 for a #132.5 main and swap the #17.5 for a #20 pilot, improving warm up and throttle response on a unmodified bike right off the showroom floor.
(No emission requirement for MC's in my state)
Start changing pipes and filters and your on your own :dunno_black:
Thank you Steve, :thumb:
I gave you Karma points for your help. I think this may be where I will start until I get the pipe on.
What about spacer and turning screws 3 times etc? This is where I get lost, where does this spacer go and what screw am I unsecuring?
Quote from: ghostrider_23 on October 30, 2011, 09:47:29 AM
Thank you Steve, :thumb:
I gave you Karma points for your help. I think this may be where I will start until I get the pipe on.
What about spacer and turning screws 3 times etc? This is where I get lost, where does this spacer go and what screw am I unsecuring?
I have no experience shimming needles because I was happy with the jet change I made on my stock bike. Yes drilling out the brass plug and turning out the screws is an improvment, I set mine to 3 turns out and never looked back.
Where did you gett the jets from???
Quote from: ghostrider_23 on October 30, 2011, 10:06:00 AM
Where did you gett the jets from???
http://jetsrus.com (http://jetsrus.com) :thumb:
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I have put jets, kn filter and jardine rt-1 exhaust. I love the sound and better performance that I have now. I also did a carb kit at the same time because I had a leaky carb. Get all the parts ahead of time set everything out take it slow. I took one apart at a time and then we able to look the other other one if I had any questions. If you have someone that would show you some stuff that would be the best. Just know your limits. And have fun
New tires really are slippery. I changed both tires last year and I knew they are slippery at first, but still lowsided on the first left turn on a T-junction.
Quote from: Suzuki Stevo on October 30, 2011, 09:41:48 AM
As far as what jets to use all I know is you can take a bone stock GS500F and swap the #130 for a #132.5 main and swap the #17.5 for a #20 pilot, improving warm up and throttle response on a unmodified bike right off the showroom floor.
(No emission requirement for MC's in my state)
What other side effects does that have, though?
Quote from: Phil B on October 30, 2011, 01:43:08 PM
What other side effects does that have, though?
It doesn't hurt the mileage, if that's what your thinking. My jetting change with a +1 CSS I got 69.8 Mpg on one tank under ideal gas station to gas station conditions (Garmin GPS). 55 Mpg to 65 Mpg without even trying (open road), combination freeway/intown I could go 190-200 miles before I had to switch to Res. Before you say
"BS my bike gets nothing close to that!" you have to remember I ride to RELAX, I take it easy to unwind. I don't rail like most clowns out there, so easy in fact, I haven't crashed or dropped a bike in 35 years, my numbers are legit. Just like when your fuel map for an injected bike is correct, you are then out of the carbs/TB's more, performance and mileage go hand in hand <<as told to me by Nels Byersdorf of
http://2wheeldynoworks.wordpress.com/ (http://2wheeldynoworks.wordpress.com/)
Not so much MY regret (yet), as the PO did a fenderectomy before I got the bike...but while I was riding two weeks ago, BaltimoreGS was driving his cage behind me. I kicked up a rock and cracked his windshield.
Sorry, Jessie....but like you said "you better be glad it was me and not some [insert expletive and or mildly racist comment here] guy with a shotgun who would've gotten angry at you because of your fenderectomy". Yes, I'm glad...but I also like my fenderectomy.
I think if a cop ever gives me a ticket for a mod...then I'll regret it.
Quote from: Suzuki Stevo on October 30, 2011, 02:51:13 PM
Quote from: Phil B on October 30, 2011, 01:43:08 PM
What other side effects does that have, though?
It doesn't hurt the mileage, if that's what your thinking. (...)
okay then.. so what does it hurt?
Otherwise surely suzuki would have done it in the first place.
"There's no such thing as a free lunch". There are always tradeoffs. I'd just like to know what the negative part of the trade is. Anyone know?
Fuel emissions. A lot of bikes are sold with the intake on the lean side. At least, older bikes.
Quote from: Phil B on October 30, 2011, 09:16:18 PMokay then.. so what does it hurt?
Otherwise surely suzuki would have done it in the first place.
"There's no such thing as a free lunch". There are always tradeoffs. I'd just like to know what the negative part of the trade is. Anyone know?
The one thing you can count on when buying a carburated bike in the US is that it will be on the lean side for fuel emissions. One step fatter has been my norm for any street bike I have bought in the last 35 years. If a bike is coldblooded....that's the first clue.
So, basically, you're implementing the same thing as permenant "slight choke" on all the time?
but it woud cause the thing to fail a california smog test?
Quote from: ghostrider_23 on October 30, 2011, 10:06:00 AM
Where did you gett the jets from???
I went to a local dealer and ordered them there (same sizes as Stevo mentioned, also listed for stock bike on Wiki). I looked for part number on a link off the Wiki page and the dealer ordered them for me. Cost me around $15 CDN for the set.
1. The 80's and 90's and 00 vintage Bikes are setup lean from the factory AFAIK.
2. Some bikes both models and examples in each model are worse than others.
3. Mod anything in the system and you're likely to need a rejet.
4. Trade off is yes, loss in the cleaner emissions, a shade lower gas mileage though a nicer running bike will result in you twisting it more and hence getting even less gas mileage.
5. The needles and floats wear to the richer side and in some bikes like vulcan 1500 and a few other I dont remember right off hand, the needle will wear so much it needs to get replaced every 10-20K miles. Floats on an 89-00 lose adjustment every 2-3 years depending on the bike/use/luck.
6. Leaner = hotter and you dont have a reference point to measure it. Maybe someone should do a control test. It could be as much as 100 degrees chamber temperature. There gotta be a correlation to exhaust temp and someone oughta install one of those and try it.
And -
Here is the kicker ... and why I got in the rejetting racket.
Suzuki, the same suzuki that "would have done it in the first place" sent out bikes jetted with 40/125's and an adjustable needle to boot in contries that had no epa. Canada england and a lot of europe in the 89-00 series got 40/125's as did most of asia and australia. Look in the manual for a list of countries and what jets they got in the bike.
That IMHO to a pencil pushing software engineer is a dead giveaway that the "best practices" are not followed here.
The 01+ jetting calculations are just an extension of the 89-00, do a +1 all across and try it. I am yet to see a true 01+ manual.
Cool.
Buddha.
Regret: not getting started in the dirt. 20 years ago, instead of 5 years ago on the street.
Mistake: lots of them, learned so much on the gs.
Best advice for new riders, slow down, look for everything, and ride instead of modding.
Quote from: The Buddha on October 31, 2011, 08:27:05 AM
Here is the kicker ... and why I got in the rejetting racket.
Suzuki, the same suzuki that "would have done it in the first place" sent out bikes jetted with 40/125's and an adjustable needle to boot in contries that had no epa. Canada england and a lot of europe in the 89-00 series got 40/125's as did most of asia and australia. Look in the manual for a list of countries and what jets they got in the bike.
Maybe they're a company that thinks that sticking to "environment protection"' standards (ie: "protecting the environment) is a good thing, even when not required to do so by law.
or maybe I'm just crazy.
I regret buying GS, this little piece of underpowered crap makes me shiver when it doesn't want to start in the winter due to stupid carbs. I should have gone with liter bike in the first place and skip the learning part on the 500 all together.
Just kidding, I love my little yellow bee :)
What I regret is drilling the stock exhaust years ago. It sounded like retarded lawn mower ;) I later replaced it with stock GSXR pipe which I also regret because I spent $50 on it ant it looked oversized for GS500. I then went with Leo Vince SBK oval and love it (I already had custom built flange so installing Leo took 5 minutes)
Quote from: Phil B on October 31, 2011, 11:03:19 AM
Quote from: The Buddha on October 31, 2011, 08:27:05 AM
Here is the kicker ... and why I got in the rejetting racket.
Suzuki, the same suzuki that "would have done it in the first place" sent out bikes jetted with 40/125's and an adjustable needle to boot in contries that had no epa. Canada england and a lot of europe in the 89-00 series got 40/125's as did most of asia and australia. Look in the manual for a list of countries and what jets they got in the bike.
Maybe they're a company that thinks that sticking to "environment protection"' standards (ie: "protecting the environment) is a good thing, even when not required to do so by law.
or maybe I'm just crazy.
I know and they love the USA so much they sent the least polluting bikes to the US ... y'know air never moves across from one place to another.
Its jetted 1 size too lean due to epa that is it. Besides they know murricans will never ride it, and if they do, they will spend tons of $ @ the dealer to "fix" their problem.
Cool.
Buddha.
I've made a lot of mistakes while wrenching, and learned a hell of a lot from each one of them. The biggest lesson I've learned, over and over and over is to due diligence in everything. Sometimes there are shortcuts, but if you're going to use one really think it over - often a shortcut will cause more harm than it's worth.
On the BMW, I tried to bolt down the cam caps without the correct tool. Might have worked fine... Might eventually find that I ruined my cams and bearings, worst case is that I'll need a new head. Not worth it to save on a $100 tool.
On the race van, I pulled the front of the engine apart and oil pan off before double checking that the timing rotor wasn't out of phase with the crank. Now, no oil pressure. Created hours of work for myself.
On the GS, I forgot to check the oil after a couple of trackdays, and then rode on it with a small rattle from the engine. Result was one busted up bike and a dislocated shoulder.
Check everything. Confirm everything. Don't ride on a vehicle unless you know that it's 100%.
First mistake - not going to GSTwin site to read posts on the do's and don'ts of changing oil. This led to the second mistake of over tightening and snapping off the cap nuts holding the oil filter.
- Porkchop
Regrets on Flick tried going LED on all the turn signals what an electrical pain finally just went back to incandescent except for indicator lights.
The rejet I did when Buddha was being "nice" and sent me jets I never even asked for. Worked fine for a bit but 9 months of hell so far and counting.
Mary