GStwin.com GS500 Message Forum

Main Area => General GS500 Discussion => Topic started by: conradvr on June 08, 2004, 05:24:32 PM

Title: Wot the!
Post by: conradvr on June 08, 2004, 05:24:32 PM
Last night I pulled the carbies off to install the new jets.  What I found was the right hand carby's main jet was a 125 and the left hand carby's main jet was a 122.5 :?  

Now with the new jets and the needles raised a notch (Aussie spec model), carbs balanced and idle screw set she does seem to run a bit better - have to wait until tonight for a test run  :)

Cheers
Conrad
Title: Wot the!
Post by: conradvr on June 08, 2004, 05:53:55 PM
Actually, does anybody know what the standard setting is for models with the notches on the needles (1996 model) - just in case the ones in this bike have been changed as well?

Thanks
Conrad
Title: Wot the!
Post by: MarkusN on June 09, 2004, 12:42:30 AM
If it's the same as in Europe, standard would be 122.5 / 125 main jets, third notch.

The different jetting isn't all that weird. Remember that the firing sequence of the cylinders is fire-fire-exhaust-exhaust, so one cylinder must suck its air in right after the last one has basically "emptied" the airbox, so conditions are not symmetric.

Suzuki did this onyl for a few model years, though.
Title: Wot the!
Post by: conradvr on June 09, 2004, 04:33:02 PM
Thanks MarcusN.  I was concerned that somebody had been playing with the carbies and had maybe played around with the notch settings. Good to know the different jets are a factory default.


Cheers
Conrad