[TR] jet adjustment

Andrew Mace zoboherald at aol.com
Tue Oct 14 07:58:57 MDT 2008


-----Original Message-----
From: dorpaul <dorpaul at bellsouth.net>

However, I removed both air filters and saw that both pistons were 
3/4's of
the way down and opened in sync. when the rpmmmm's were increased.  I 
had
already ball-parked their fast (or is it their slow) idle adjustment.  
Does
this sync. suggest that they were needle-height-ok-adjusted?

==AM==
At the least, it suggests that the two carbs are synchronized to each 
other, which is very good, but it doesn't necessarily mean one isn't 
still a bit richer (or leaner).
==AM==

After running it at various low rpmmm's I shut it off with the KEY 
SWITCH!  I
removed all the plugs and they all looked equally flat sooty straight 
black.
Does this mean turns of  the jet adjustments equally up or is it down?

==AM==
Possibly rich, which means turning the jets up a bit...but just basing 
plug color on sitting and tuning in the garage or driveway isn't the 
most reliable way. Driving some distance and rechecking would be a 
better measure, I'd think.
==AM==

BTW- One plug was a Champion L182Y.  Any difference?

==AM==
Than what? A Champion L87Y (which is the typical recommended plug, and 
it's a bit hotter than the L82Y)? or another brand altogether in the 
other three cylinders???

--Andy  Mace

*Mrs Irrelevant: Oh, is it a jet?
*Man: Well, no ... It's not so  much of a jet, it's more your, er, 
Triumph Herald engine with  wings.
 -- Cut-price Airlines Sketch, Monty Python's Flying Circus  (22)

Check out the North American Triumph Sports 6 (Vitesse 6) and Triumph 
Herald Database at its new URL: <http://triumph-herald.us>


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