I would first suggest an air leak but you seemed to have addressed it. Have
you have the carbs apart recently? I had a very similar problem when I
mis-aligned one of the butterflys during a re-build. Could this have
happened to you and just been masked by the plug wire?
Also, Separate the two carbs by loosening the connector linkage. This will
help to isolate the offender.
Bill
Bill Beecher
'58 TR-3A TS30766L "Tarbaby"
www.triumphowners.com/1566
"A Triumph is man's best friend, it always comes when it is called...of
course, some times it is difficult to make it go"
-----Original Message-----
From: triumphs-bounces@autox.team.net
[mailto:triumphs-bounces@autox.team.net] On Behalf Of Frank Fisher
Sent: Saturday, February 04, 2012 7:00 PM
To: triumphs@autox.team.net
Subject: [TR] tr3 fast idle
seems i had been running with a failing plug wire for while.
idle had been around 600/700
replaced plug wire and am running strong on all 4 cylinders again.
but idle has been at 1500 and i cant seem to get it down.
the adjustment screws on the carbs are completely out. not even touching.
tried pulling the throttle closed by hand..nope tried advancing the ignition
timing..nope tried retarding ignition..nope.
sprayed brake cleaner on all 4 parts of the throttle shaft. had slight
effect and idle speed went down just a tad. wet the throttle shafts with
engine oil/30 wt..no change.
any thoughts?
Frank
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