stock jet settings?

Steve Northrop blackgpz at
Sun Oct 4 10:07:29 PDT 2009

Service Manual says 110 main, 35 pilot, pilot screws 2 turns out.

Steve in Western NY
'96 GPZ1100
'08 KLR 650
'08 Tuono Factory
"You Can't Fix Stupid", Ron White

----- Original Message ----- 
From: "andy burkard" <andyburkard at>
To: <gpzlist at>
Sent: Friday, October 02, 2009 9:07 PM
Subject: stock jet settings?

> hey all,
> long time - lurk mode...  something about buying a C-14 i suppose...  ya, 
> it's pretty awesome.
> well, i still have the gpz, haven't ridden it since memorial day weekend. 
> i seem to have the jetting a bit off, and well, with a new bike in the 
> garage, not a lot of incentive to address the issue.
> anyone recall what the pilot and main jet sizes are supposed to be in a 
> stock set up?  stock pipes, stock air box and filter...
> i took out the dynajet stage 1 kit and went back to stock - mains of 110 
> IIRC, and i thought i had to go from #38 pilots back to whatever was stock 
> (34 perhaps?) - anyway, with the non-38's as pilots, i'm finding my needle 
> valves are all the way out to something like 5 turns and it still runs 
> like, well, a turd.  the further i turn these closed, the worse...
> i'm pretty sure i got the mains right, anyone recall what the pilot jet 
> sizes are, and approximately how many turns out the needle valves should 
> be?  i'm thinking it should be in the 2-3 range...
> thanks all,
> andy b

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