> Also, where as one type of 'needle' was a 'grose jet'?
The Grose Jet uses balls instead of needles.
> Another needle type is solid? (preferred by some due to
> smaller % of
> Yet another type is multi-sided (is this the "Vitron Tip")?
"Viton" is a kind of synthetic rubber, usually black.
> My collection has both brass and silver tips.
No Viton then.
> What originally came on the carbs?
I believe originals were simple round brass.
> Were the improved tips
> really an improvement?
IMO, not enough to worry about. I actively dislike Grose Jets as I've seen
them cause more problems than they solve; but all the others seem pretty
much equivalent as far as reliability and longevity are concerned. The ones
with the spring-loaded plunger inside the "needle" seem like they might do a
better job of controlling fuel level under vibration and whatnot, but I
can't say I've seen any difference in practice.
This list supported in part by the Vintage Triumph Register
Triumphs mailing list