[TR] tr3 CARBURATION

[Frank Fisher]

lifting the piston a little 1/16 per the book (where did they get 8mm from?)
does nothing. lifting it about 1/2 gets the motor reves moving.
i will work my
way through Randall's sugestions when i get back from vacation.
just some
other info
tail pipe emissions are very black
the color tune went very sooty
black in just a couple of minutes of running. color was orange(rich)
no
overflow from the float bowl overflow pipe.
no wetting of the underside of the
jet adjustment screw
fuel pump is stock. not rebuilt, just cleaned and refited
(was working on the old "if it aint broke"
Frank
________________________________
From: "jimmuller at rcn.com" <jimmuller at rcn.com>
To: Triumphs at autox.team.net
Sent: Monday, September 28, 2009 9:19:37 AM
Subject: Re: [TR] tr3 CARBURATION

Randall wrote:
> The "lift the piston" test
given in the manual is quick and
> reliable, IMO.

But it does require that
dual carbs be reasonably balanced and with a decent mixture.  You won't see
much action by raising the piston of a carb that is doing little because the
other carb's idle is set so much higher.

Jim Muller
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