on 6/18/00 10:17 AM, louis churukian at [EMAIL PROTECTED] wrote:
> Have made countless carb changes and can't get it right. FRUSTRATION! The
> mid-range circuit seems to studder (like a race car waiting to leave the
> line) when I roll the throttle wide open under 3k rpm's. The studder is
> throught the 5-6k rpm's and clears up at 7k and above. If I gradually open
> the throttle the bike will run well throughout the entire range.. Problem is
> only encountered when I wack it open. I have completely disassembled the
> carbs and found them to be very clean. No evidence of varnish or crud. I
> tried a bunch of mains, and moved the needle without sucess.
>
> Any thoughts.
While there's way too little info, my first guess is pilot circuits and
slide springs, rather than mains. Since it sounds like you've played with
the mains, but don't say anything about the pilots, you might try there.
Also, some of the symptoms seem to indicate the slide springs might be off,
either too soft or too hard for the rest of your setup. Have you tried
pulling your plugs immediately after full throttle acceleration? (Wait for
the bike to stop, though.. ;-)..) Don't let the bike idle, though. Hit the
kill switch and close the throttle, coast to a stop and pull the plugs.
That'll tell you what's happening during the weirdness, rather than what
your idle circuits are like.
best,
Sat Tara
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