News:

The simplest way to help GStwin is to use this Amazon link to shop

Main Menu

main jet 115 it o.k?

Started by shenobi, May 17, 2007, 07:06:27 PM

Previous topic - Next topic

shenobi

hey
i am from isreal i have amodel 97 v uk
i saw many of you are rejeting some of the jets.
on my bike the main jet is 115 is it o.k? if it not what shoud i do to inprove it?
o if i do thoes modifications with nedels and jets do i need to put a k&n filter too?
thanks

TwinsRFun

Check out this site from the FAQ section.  It'll tell you what other people have used with different mods/jets to get the best performance from thier gs500e's.
http://gstwins.com/gsboard/index.php?topic=4865.0

Or check out Mike's page with pretty much the same information plus a little walk through of the process it you are mechanically inclined enough to do it yourself.
http://www.angelfire.com/mt2/mikesgs500/

Neal
"Life is hard; it's harder if you're stupid."
   -John Wayne-

sanjay

A lot of this is consolidated on the wiki:

http://cgi.stanford.edu/~sanjayd/gs500/Upgrades/Rejetting

I'm guessing you mean a 115 main jet?  That's pretty small, and is smaller than stock, even.  Are you sure it's 115?  Can't imagine why that would be in the bike.  You can improve the bike with the right jets (on the above pages), without having to install a new air filter.
'92 GS500.  Sold.
'01 GS500.  Sold.  SM2s.  Progressives (15W).  Woodcraft Rearsets.  K&N Lunchbox.  Yoshi TRS slip-on.  CRG bar-end mirrors.  Pirelli Sport Demons.  Billet Fork Brace.
'07 Monster 695.

GS500 Wiki:  http://wiki.gstwins.com

domas

European bikes come with 115 Main jets. This is for emmision control. My bike came with 115 too and it is a 02' model. Poor thing was all white on valves and spark plugs.


Shenobi you can safely put standard jets for that year, it should be 125 i think, maybe anyone with that model can tell for sure. It will sure be healthier for your bike and feel a little stronger.

If you do any air filter or exhaust mods, you will need to go higher.
'02 GS500 Yellow, Mods: K&N drop in w/o restrictor, BSM full exhaust, 132.5/60/17.5 (e-clip @ 4), progressive springs, katana rear shock ('01), fenderoctomy,  sleek mirrors, loud dual automotive horn, warmed grips(home made), SS front brake line.

sanjay

Wow, I thought the Euro-spec bikes came jetted properly.  Too bad.

+1 on what domas said.
'92 GS500.  Sold.
'01 GS500.  Sold.  SM2s.  Progressives (15W).  Woodcraft Rearsets.  K&N Lunchbox.  Yoshi TRS slip-on.  CRG bar-end mirrors.  Pirelli Sport Demons.  Billet Fork Brace.
'07 Monster 695.

GS500 Wiki:  http://wiki.gstwins.com

Jay_wolf

I Dont Think Mines Got Such A Tiny 115, My Plugs Are Fine , Then Again , Mine Was Second Hand, And Is Reallly Quick For Some Reason , From About 3,000 It Starts Flying Up
2001 Gs500 , Katana Gsx Front End, K3 Tank,, Full S S Predetor System ,Bandit Rear Hugger,Goodridge S S Break Lines ,  Belly Pan , , K+N LunchBox, Probolt Bolts, FSD Undertray With Built in Lights And Indicators. 
2008 Megelli 125 SM 14bhp
1996 Honda NSR 125cc 33bhp
2001 Mercades A160  115bhp

spc

I'm still on a freakin cloud cause she'll do acceleration wheelies now :icon_mrgreen: :icon_mrgreen: :icon_mrgreen: :o :o :o

115 is seriously small :o :o
Figure out what mods you want to do and can do in the very near future then hit the jet matrix to figure out what jets you will need.  No sense in re-jetting a million times

Jay_wolf

mines getting rejetted on the day of the mot . i really dont wanna mess it up , and i can get money if they do lol . lunchbox on its way

and with the exhaust its running lean , but im not riding it at the moment , so it doesnt matter as such,. im gonna buy the jets , and there gonna fit them, hes a dude, hes doing loads of hard little bits for me , on the cheap., so its all gd
2001 Gs500 , Katana Gsx Front End, K3 Tank,, Full S S Predetor System ,Bandit Rear Hugger,Goodridge S S Break Lines ,  Belly Pan , , K+N LunchBox, Probolt Bolts, FSD Undertray With Built in Lights And Indicators. 
2008 Megelli 125 SM 14bhp
1996 Honda NSR 125cc 33bhp
2001 Mercades A160  115bhp

Wrecent_Wryder

#8
M5
"On hiatus" in reaction to out-of-control moderators, thread censorship and member bans, 7/31/07.
Your cure is worse than the disease.
Remember, no one HAS to contribute here.

spc

I was wondering if there was a connection there.  I guess that would be one way to do it :dunno_white: :dunno_white:  I figured it was probably a block right past the butterfly valves :thumb: :thumb:

Jay_wolf

Good Point , The Restriction I Think Is The Jets , .. Mines A Full Power , i no that much,, Hmmm

Jay
2001 Gs500 , Katana Gsx Front End, K3 Tank,, Full S S Predetor System ,Bandit Rear Hugger,Goodridge S S Break Lines ,  Belly Pan , , K+N LunchBox, Probolt Bolts, FSD Undertray With Built in Lights And Indicators. 
2008 Megelli 125 SM 14bhp
1996 Honda NSR 125cc 33bhp
2001 Mercades A160  115bhp

The Buddha

Some countries has a solid spacer hanging down from the plastic tops so the slide wont lift past 3/4 or some like that. Anyway, some european contries and Canada came with the right jets. I wanna say German spec bikes through 96. But Canadian were all 40/125's. I just figured canada was the least restrictive place on earth. Parts of europe too, including adjustable needles on the british bikes atleast. No idea why they jet them so lean in a super hot country where gas is probably not too $$$ either, I dont think it does a whole lot for emmissions cos emmissions are at low rpm at high rpm the damn thing will be spraying liquid oil out the pipe. That was how loose the tolerances were. And they jet it leaner than Hillary Duff.
Cool.
Srinath.
-----------------------------------------------------------------
I run a business based on other people's junk.
-----------------------------------------------------------------

SMF spam blocked by CleanTalk