[AT] Tractor Question - 420 JD

[Lew Best]

Don't know if it'll still work as I'm told that WD40 has been
re-formulated but in the old days you could spray it around the manifold
contact places, etc. with an engine running & any vacuum leak would make
an engine speed up quite noticeably.  Ether starting fluid should do the
same but would have to be kept plenty far from the carb intake to avoid
a "false alarm."

Lew
 

-----Original Message-----
 
Thanks for the replies.  It is good to know that at least it is the
right 
one.  I have cleaned with carb cleaner and blown out several times over
the 
15 years I have owned it.. I took it to the place that Dennis Polk uses,
and 
had it boiled and new jets, still same thing.  I had heard of the place
in 
IA and was thinking of trying them.  About a vacuum leak, I did a ring
job 2 
years ago, and used all new gaskets, so it should not be leaking air. I
did 
use the same manifold, so if it is wrapped, then I would have the same 
problem.

I will keep plugging away, thanks again