> I received a pair of SU's with a TR250 I acquired. The carb
> bodies have the
> following casting numbers: AUC1346 and the other AUC8490. Carbs
> appear to the
> same and complementary (floats on the outside). The AUC1346 has a vaccum
> hookup on the top of the body. Teh other is mssing this vaccum hookup. The
> float tags are stamped with AUD209 (of course F&R).
According to my book, AUD209 are Triumph TR4A carbs. Of course, someone may
have switched the tags.
> When mounted on the intake the floats appear to be at an angle
> tilted toward
> the engine. How can I compensate for this?
There is an insert where the float bowls mount to the body, that sets the
angle of the bowl. The inserts are available separately, but unfortunately
I have no idea which ones you need. It might be possible to make your own
insert.
> Also does any one know why one has a vaccum hookup and the other does not?
That would be the ported vacuum for the vacuum advance. One advance capsule
== one port.
> I was wondering whether to use these or go back to Strombergs? I
> understand
> the HS6 is the preferred Carb. What performance can be expected
> out of these.
The problem is that you most likely do not have the optimum needles and
springs for your TR250. Unless you're willing to spend a fair amount of
time, energy and money finding the right combination (or can find someone
that has already done it and is willing to share); you'll probably be
happier with original ZS carbs.
> To use these carb I will have to resolve the thottle linkage to the 250
> setup.
Another reason to stay stock ...
Randall
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