[TR] Carburetors

[alan salvatore]

I 've rebuilt many Strombergs, I just rebuilt the ones on my TR250.  I had
one carb spilling gas all over.
The needle valve was hanging up right out of the box. Replaced the needle
valve and all was good.  There seems to be problems with some of the new
needle valves.
Easy fix.

On Fri, Oct 6, 2023 at 3:20 PM David P <frogeye at porterscustom.com> wrote:

> Take a close look at the choke fast idle cam being fully off and that
> the chokes themselves are working properly... must be removed to check..
> DaveP
>
> On 9/28/2023 6:57 PM, Frank Burkhart wrote:
> > Hope this email is appropriate to send.  I’m hoping that someone out in
> Triumph world can provide some clarification on carburetors.  Currently,
> Zenith Stromberg carbs on my 1975 TR6.  The car has been running poorly
> since Trimphest (too many RPMs?).  And then it died completely but turned
> out to need a new rotor.  Asked the mechanic, Mike, to take a look at the
> everything to figure out what can be made better.  What he found was the
> carbs were dumping gas into the cylinders especially when starting, to the
> point the gas was washing down the cylinder walls preventing the rings from
> sealing.  Result was a lot of white smoke.
> >
> > The carbs were rebuilt about 18 months ago by Apple Hydraulics in New
> York.  Supposedly all new parts including a new piston in one of the
> carbs.  Mechanic Mike is questioning the quality but . . .  Several paths
> to try:
> >
> > 1.  New needles and basic over haul.  Least expensive but maybe stopgap
> measure.
> >
> > 2.  Rebuild these carbs using a different shop.  Mike recommends a shop
> in Colorado. I’m would worry about a 2nd rebuild in short period of time.
> >
> > 3.  Replace the carbs.
> > 3a.  Mike has a pair of SU carbs in good shape.  Mike would replace
> “consumables” and install
> >
> > 3b.  Find a pair Stromberg carbs
> >
> > 3c.  Mike likes carbs by Mikuni
> >
> > 3c.  Replace with Webers
> >
> > Any ideas / suggestions on what path seems the best?
> >
> > Hope all the world is going well for all.  Hope to see everyone at
> Velocity.
> >
> >
> > Thank you,
> > Frank Burkhart
> >
> > ** triumphs at autox.team.net **
> >
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> >
> --
> Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 87107 ph
> 505-352-1378  My World go here: WWW.PORTERBIKES.COM/
>
> ** triumphs at autox.team.net **
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