[TR] carburetors

[Greg Lemon]

I agree with Frank, it seems quite a jump to say you need new carbs or a
rebuild, the carbs will work fairly well even if worn or poorly adjusted.
Torn diaphragms can be an issue, but doesn't sound like it matches your
symptoms.

Could the choke (enriching lever) be stuck or not adjusted right?  Or a
float bad or float needle stuck as suggested?  If crud gets in the carbs
needles can stick whether the carbs was rebuilt or not, old gas tanks and
fuel lines are sources for crud.   These are all fairly easy fixes and far
short of a carb rebuild in parts and labor needed for the fix.

As noted, worst case could be head gasket or internal engine but in my
experience problems like this are usually a simple fix (once you figure out
what needs to be done).

Greg Lemon
TR250

On Tue, Oct 3, 2023, 8:31 PM Frank Magnusson <fmags at cox.net> wrote:

> Some of your mechanics conclusions seem a bit dubeous.  I would get a
> second opinion.  It may not be your carbs.
> Did you do a compression check?  White smoke typically is antifreeze; i.e
> head gasket.
> Strombrrg carbs are generally bullet proof and very simple.  I’ve had many
> carbs on many Triumphs over the years and never had any issues for the most
> part.  Even carbs that had been sitting for 20-30 years, no overhaul and
> they worked.  The only issue I had recently on one was a burr on the one of
> the pistons that caused it to hang up.  Check the checkvalves in the float
> bowls; they tend to stick.  I had one stuck open, another stuck closed
> along with the burr on one piston and the only symptom was power loss.
>
> Frank
> ‘72 Stag, TR6,  GT6, Spit
>
> Sent from my iPad
> ** triumphs at autox.team.net **
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