Not a TR6 guy but I would check for vacuum leak.
Bill B
TS30800L
-----Original Message-----
From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Rochlin
Robert
Sent: Friday, May 18, 2018 9:54 AM
To: Triumphs (triumphs at autox.team.net) <triumphs at autox.team.net>
Subject: [TR] erratic carburator idle
I?ve been working through, what I think is, a carburetor problem. My
72? TR6 has a rebuilt engine with a Goodparts mild cam and compression of about
9:1. Then I start from cold the engine runs really well, but after it is
throughly warmed up it gets finicky. When I idle for a long period of time the
idle will gradually decay. Also if I stop, the engine will start right up, but
idle at a very low RPM. This poor idle improves as the engine is rum for a
while. On one hand is sounds like vapor lock or at least heat effecting the
carburetors, but the weather here is not hot yet and the engine seems to
exhibit this behavior when the ambient temperature is in the 60?s F. My knee
jerk reaction is that I should add a carburetor heat shield, but before I did
that I wanted two ask if anyone else has had this difficulty or may suggest
something I?m missing.
Thanks in advance.
Bob
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