Another list member (I won't name names) had a very similar problem after a
rebuild. His problem was that his rotor was 180 out, and no one found it
out until we overtaxed our minds with wondering what was wrong. Basically,
the spark occurred when there was little to no fuel in the pots. Check and
recheck the dogged gear at the bottom of the dizzy, as this helps to point
the distributor.
Maybe my "anonymous" friend might lend his advice.
Eric Conrad
Denver, CO
econrad@teal.csn.net
-----Original Message-----
From: owner-triumphs@autox.team.net [mailto:owner-triumphs@autox.team.net]On
Behalf Of John Howard
Sent: Wednesday, July 12, 2000 2:08 PM
To: triumph list
Subject: TR4 rebuilt won't start
Well listers, I give up.A full day trying to start the new engine and no
results. Actually, it fired once for a few seconds, then nothing since.
I have spark at the plugs. I'm 99% certain I have the timing basically
right and the distributor seated correctly. Rotor lines up with correct
cylinder. I think the problem is with the ZS carbs. I rebuilt them last
winter, and just stripped them down again. Float height is correct to
the book. All washers in place. Metering needle is centered so that it
falls easily. The engine cranks fast with the rebuilt starter, and after
a few seconds of cranking, fuel pulses out the float chamber vent at the
front ( where the air filter fits). Having set the mixture screw at
three turns open, in accordance with the book, fuel spills finds it way
past it.Clearly I'm flooding the carb, but no mixture seems to be
getting to the cylinders.
Perhaps the throttle is too closed? Wrong O-ring on the mixture adjuster
retaining screw? Bad coil so not enough spark? Why hardly no combustion?
Any idea what I'm missing?
thanks and regards John
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