John,
It was my understanding that the high speed adjust screw was used to balance
the carbs at higher revs. First you balance the carbs at idle. Then using
the throttle to maintain the revs at about 2,000 - 2,500 rpm you balance the
carbs again using the high speed adjust screw.
-
Jack Davis
'69 2000
SRL311-11273
----- Original Message -----
From: "John F Sandhoff" <sandhoff@csus.edu>
To: "The Belgian Roadster" <chriss@euregio.net>
Cc: <datsun-roadsters@autox.team.net>
Sent: Tuesday, October 16, 2001 4:27 PM
Subject: Re: Throttle adjust screw
> It was asked:
> > Is there anybody out there, who can take a close picture of the
> > throttle adjustment screw close to the throttle cable drum.
> > It's the screw that is used to adjust the throttle of both carbs
> > together.
>
> Keith Williams used my car as a tune-up demo at the Shasta meet.
> He feels that this screw is used during carb balancing ONLY (to
> temporarily achieve a high RPM) and in normal operation should
> not be touching the manifold. The idle speed should be adjusted at
> each carb independently.
>
> His philosophy makes a LOT of sense to me. (Keith, I sure hope I
> got that correct!)
>
> -- John
> John F Sandhoff sandhoff@csus.edu Sacramento, CA
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