stock jet settings?
andyburkard at yahoo.com
Mon Oct 5 08:55:31 PDT 2009
well, the 38 pilot jets made the difference. go figure. with the 35's there was a stumble / bog when demanding power in the 2-4k rpm space, which i was over compensating for by backing the mixture screws out (5 turns).
with the 38's and mixture screws turned out 3 full turns, it pulls strong all the way through to red line - very smooth, but, it does seem to have a gradual decent in rpms when backing off the throttle.
i'm thinking i'll try closing the mixture screws a turn and see what that does.
it's ridable now, so we're happy now...
--- On Sun, 10/4/09, Steve Northrop <blackgpz at rochester.rr.com> wrote:
> From: Steve Northrop <blackgpz at rochester.rr.com>
> Subject: Re: stock jet settings?
> To: gpzlist at micapeak.com
> Date: Sunday, October 4, 2009, 10:07 AM
> 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 yahoo.com>
> To: <gpzlist at micapeak.com>
> 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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