I changed the set-up on my carbs yet again, and went back to the 16 tooth front sprocket. I wanted to see if going back to the stock needles would change my current performance. The DJ needles are a little flakey in the 34mm carbs.
The set-up I used.
Stock needles shimmed up 1/8"
#20 pilot
#67.5 mid-main
#147.5 main
4 turns out mixture
I took it out and it is smooth, strong and quicker than it already was. I took it on the "test track" and ran some high speed tests :o . Fifth gear pulled to red-line at an indicated 119 MPH quickly. Sixth gear usually would do no good here with the old carb set up because it wouldn't pull much more. I shift to sixth to see what happens and it keeps pulling convincingly at 125 and I figure there is no chance it will keep going; but it does, right past 130 and still going where there aren't numbers on the speedo. The tach was at 10,500 or so and it felt like there was more but this is when I began to realize I was on a public road doing a speed that could kill me or get me sent straight to jail. I slowed down and went home. I gotta dyno this bike, now I'm curious.
:cheers:
Mike
:o
mike i will bring my bike with the parts.. can you do that here too :) please.. burlingame.. im in the sacramento.
Dude that sounds out of control! That jetting sounds crazy too. I never saw anything on any board about useing 20 pilots, or switching the "mid-main. I am not sure what jet that even is. Maybe you could explain it to me...PLEASE PLEASE...
Mark
Quote from: BriggsDude that sounds out of control! That jetting sounds crazy too. I never saw anything on any board about useing 20 pilots, or switching the "mid-main. I am not sure what jet that even is. Maybe you could explain it to me...PLEASE PLEASE...
Mark
only 01 bikes have 3 jets, the prior bikes have 2 jets..
Our bikes have different jettings on them from u guys.
Nevermind, I am an idiot...Still I am jealous of those stats.
oh wait your probably runnning a K&N clamp on filter and a aftermarket pipe.
I am running stock air filter and stock pipe..
maybe i can rejet and then deal with other stuff.. If required drill a few new holes in the can to get more air flowing thru..
i can probably afford those jets soon enough if they arent too expensive.
If you order the parts I'll do it; howerver, I am in Mountain View now. I also have UNI pod filters ($18.00 ea.) timing advancer (Bob Broussard is free) and a Vance & Hines SS full exhaust ($250-$300) on my bike. I'm sure a Yosh pipe and K&N filter will give the same results. I wouldn't try 130 MPH on stock suspention and tires though. By the way, this only works with the 34mm Mikuni BSR carbs from 2001+. The jets are cheap, around $20 for the set of 6. I recommend getting at least the filters to go with it. The timing advancer only effects lower RPM's, and I guess you can increase airflow by drilling holes in the exhaust can so top end will be helped out.
mmmmm pppiiipppeerr.....fffaaasssttt....
Pablo, your bike sounds like a prime cantidate.... 120 indicated stock. That's where mine was, a little jetting and exhaust would probably give you the same results.
Quote from: Piper5177...a little jetting and exhaust would probably give you the same results.
My thoughts exactly...hmmm.
yeah one question.. WHY WOULD YOU WANT TO GO FASTER THAN 120?
not flaming, but please think. IF your canyon carving at 120+ then maybe you guys should get some video and make money off that skill.. otherwise, DONT.. please.
If more top end in general is acheived, great, but i dont recall you commenting on that part... just the part above three digits..
My buddy died going 130 when a car misjudged his speed and pulled in front of him...
THINK.
The reason I did it was for running from the cops :nana: naw it was for the top end of the RPM range. The higher top speed is a byproduct. I was curious how much faster it was going to pull, and did not expect it to keep going past 125 let alone the 130 mark. This is why I am curious about a dyno run with this set-up. It hasn't been done with a modded 2001+ GS. Don't worry I am not planning other runs up to that speed. They pay for video of that? hmmm. j/k
Thanks for the concern :thumb:
Mike
Quote from: Piper5177If you order the parts I'll do it; howerver, I am in Mountain View now. I also have UNI pod filters ($18.00 ea.) timing advancer (Bob Broussard is free) and a Vance & Hines SS full exhaust ($250-$300) on my bike. I'm sure a Yosh pipe and K&N filter will give the same results. I wouldn't try 130 MPH on stock suspention and tires though. By the way, this only works with the 34mm Mikuni BSR carbs from 2001+. The jets are cheap, around $20 for the set of 6. I recommend getting at least the filters to go with it. The timing advancer only effects lower RPM's, and I guess you can increase airflow by drilling holes in the exhaust can so top end will be helped out.
Well I have an 01 like you, I can get teh jets if they cost only 20 bucks I am in. i have my air mixture screws drilleld out (thanks to pkasso) so it should be a straight swap. I have a stock paper airfilter for the moment (put in about say 1200 miles ago), i can get a K&N clamp on if required. As for a can, Im thinking if I can get hold of one off a crashed bike or something. I will look around or i can get a cobra like you said but that will have to wait for a while or just drill holes in the stock can.. But i think the rejet would be of good calling at this moment. I have the ignition advancer and the upgraded shocks so im good that way. I need new tyres soon though.
Im going to see what cyclegear will ask for the jets..
I would check a Suzuki dealership too.
Quote from: Piper5177I would check a Suzuki dealership too.
good they are withing 10 minutes of me from where I live..
i will check for prices..and order the jets. I am all for power.
It will be very rich with the paper filter and a stock exhaust. The clamp on is a must.....don't forget the crank case filter. It replaces the hose from the airbox to the valve cover.
Quote from: Piper5177The reason I did it was for running from the cops :nana: naw it was for the top end of the RPM range. The higher top speed is a byproduct. I was curious how much faster it was going to pull, and did not expect it to keep going past 125 let alone the 130 mark. This is why I am curious about a dyno run with this set-up. It hasn't been done with a modded 2001+ GS. Don't worry I am not planning other runs up to that speed. They pay for video of that? hmmm. j/k
Thanks for the concern :thumb:
Mike
Ok,, hope i didnt sound like a baby there.. i just wanted to say it.. :oops:
I really AM concerned though, thats why i said it. :)
Piper i was just at your site, and i gotta say, you and pablo both have my drooling over what my gs could be... it makes me want to keep it! :thumb:
Quote from: Piper5177It will be very rich with the paper filter and a stock exhaust. The clamp on is a must.....don't forget the crank case filter. It replaces the hose from the airbox to the valve cover.
okay I will get the clamp on filter and then later on get an exhaust (i prefer a slip on to full system but we will see how much I can afford). Worse comes to worse i will drill some holes.
Where do I get the crank case filter.. and how much does it cost? I assume you will be taking out the california emmision canister?
I will do some price quotes tommorow if the jets are cheap i will place order immediately. The clamp on I will get from that US diesel place.
The crank case filter is around $10.... if you are getting a slip on exhaust or drilling, order a 137.5 main jet, if it's a full exhaust get a 147.5. Also with a slip-on or drilled exhaust the mid should be a 62.5 not 67.5
Full exhaust and clamp on or pod filters:
1/8" shimmed needle under the e-clip
#20 bleed type pilot
#67.5 mid-main small round slotted Mikuni
#147.5 main small round slotted Mikuni
clamp-on or pod filters only:
1/16" shimmed needle under the e-clip
#20 bleed type pilot
#62.5 mid-main
#137.5 main
Quote from: Piper5177
clamp-on or pod filters only:
1/16" shimmed needle under the e-clip
#20 bleed type pilot
#62.5 mid-main
#137.5 main
pkaaso, we gotta do this to mine!
(oh, and thanks for the 'props', rashad)
about the crankcase filter. the guy i talked to at the dealer said i needed the outside and inside diameter to get one? does anyone know it off hand for the 2001 because i dont have time to tear apart the bike right now to figure it out,but i would like to order the parts. thanks.
You need the inside diameter of the vent hose from the top of the valve cover.
Cool.
Srinath.
done and done. i ordered pipers suggested jets and the crankcase filter. i took apart the bike even though i didnt want to and it all makes more sense now. i put the pod filter on and it sounds pretty slick without rejetting and the crankcase filter. you know the first place i will come to if i get in trouble. maybe i missed it, but how many turns out should i go for the stock bike just with the new filter? thanks all.
by pod filters are you talking about the drop in filter into the stock airbox? clamp on = clamps onto the carb peice right?
Lex.. what was your crankcase filter size? I want to go get that too.
piper.. i assume everything execpt the 20 pilots are non bleeed.. but slotted.
edit:
lex how much did you spend for your jets in total (and what jets did ya get).
The pilot jets are bleed type, and the other jets are small round slotted mains. The pod filters are clamp on also but they are individual filters, one for each carb. Stock exhaust with the filters and jets should be around 3 turns out on the mixture.
Hey Piper,
Do you know what altitude you're riding at? Just trying to cover all of the bases.
I ride regularly between 50 and 1200 ft above sea level. I live at the base of the California coastal mountain range. It is slightly rich at 1200 but not very bad at all.
i got a UNI crankcase vent filter (17.32 including tax) ...or something similarly called that. i measured the inside diameter of the venting tube and it was 7/16 of an inch and the outside was 5/8 of an inch. the guy said there wasnt exactly and 7/16 fitting one so he ordered the 1/2 inch one which will fit fine cause the hose is barely stretched as it is. K&N makes one too and it is chromed for like 25 bucks and the UNI one not chromed is $15. i figured since it is under the tank no need for the chrome one and got the UNI crankcase filter. now then, the jets i paid $36 dollars for them cause they had none at all in stock, i hope that the guy ordered the right ones for me. the part numbers were: 09492-20004 for the Pilot jet #20 ($12.30); 09491-62006 for the midmain jet #65.2 ($11.36), and 09491-27007 for the 137.5 main jet($12.30). they all should be ordered directly from suzuki from my understanding. like i said they had to order them for me so i think i had to pay for 4 jets in a couple of the packs because that is how they ship. so i might have extra jets if anyone is interested. i took pipers advice on the jets i am here in ohio we have wider temperatures ranges so i'll figure out soon enough whether or not it was the best idea to get these jets...if not i am screw 36 bucks.[/quote]
If they don't work, I'll buy them. I have a friend with a 2002 in the Bay Area.
Quote from: Piper5177I ride regularly between 50 and 1200 ft above sea level. I live at the base of the California coastal mountain range. It is slightly rich at 1200 but not very bad at all.
Good news for me :thumb:
Quote from: Piper5177The crank case filter is around $10.... if you are getting a slip on exhaust or drilling, order a 137.5 main jet, if it's a full exhaust get a 147.5. Also with a slip-on or drilled exhaust the mid should be a 62.5 not 67.5
Full exhaust and clamp on or pod filters:
1/8" shimmed needle under the e-clip
#20 bleed type pilot
#67.5 mid-main small round slotted Mikuni
#147.5 main small round slotted Mikuni
clamp-on or pod filters only:
1/16" shimmed needle under the e-clip
#20 bleed type pilot
#62.5 mid-main
#137.5 main
Just checking.. is the Mid and Main jet bleed type? I found the 137.5 and the 20 too. Not the 62.5.
The thing is this, is the 20 round or hex? I sorta remember one of my jets being hex when i opened the carbs.
The clamp on filter will have to wait, because I have to wait for the "funds" to show up on hand (or have enough cash on hand to buy it locally). Im still waiting to encash my financial aid check.. so until i get some stuff cleared i cant do jack.
So the question is if I find the jets tommorow.. should I just go ahead and swap them out with teh stock suzuki drop in airfilter (new about 1000 miles or maybe more) in there.
Will it run too rich? or can i change the mixture screws to 2 turns or something to equalize for lesser air going in?
BTW: the crank case filter is 15 bucks for me (i think its in stock at the local place saw a whole bunch of sizes UNI brand). The Jets are between 2.50 to 4 bucks each.
last time i checked you can get those crankcase breather filters from any auto parts store for about 5 bucks :o . Your not buying them from a motorcycle shop are you? They are identical.
Also, jetting that is intended for a clamp on filter is not good for a stock aspirated motor. Dont do one or the other. It will run extremely rich.
There is only one style Mikuni bleed type pilos #20 so you can't get the wrong one. The 62.5 is the same type main jet as the 137.5 but it is probably going to have to be ordered.
Quote from: Piper5177There is only one style Mikuni bleed type pilos #20 so you can't get the wrong one. The 62.5 is the same type main jet as the 137.5 but it is probably going to have to be ordered.
okie dokie..
i got the 137.5.. so I will get those this afternoon... the 20's are with another dealer.. i will check another for the 62.5 or place order for it.
Quote from: Piper5177Pablo, your bike sounds like a prime cantidate.... 120 indicated stock. That's where mine was, a little jetting and exhaust would probably give you the same results.
I've come across a used Yosh pipe and K&N pod filter for $200. Now I have to get the jets n'stuff and we'll see what mine will do! That and I've located a gsxr rear wheel...woo-friggin-hoo do I have some winter projects lined up!