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The lift-the-piston method of tuning only works on pre-emissions carbs (SU)=
.=C2=A0 That is because the SU needles were profiled to do that.=C2=A0 Howe=
ver that makes them run too rich to meet US emissions standards.
The factory method is to use a gas sniffer.=C2=A0 So, yes, you should borro=
w a Gunson or similar device.
Dave
Sent from AOL on Android=20
=20
On Sat, Sep 21, 2024 at 17:59, dave northrup<dave@ranteer.com> wrote: =
=20
i have a 72 TR6 with triple carbs.=C2=A0 the engine now has about 400 miles=
on it, and i am pretty sure the carbs are too rich.
i am aware of the lift-a--piston method of tuning the carbs.
i am wondering if it is worth getting a gunson tuning setup or what is the =
best method for ensuring the carbs are correctly tuned.
i know i need to ascertain the valve gap and timing first.
** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive
sey@cs.com
=20
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The lift-the-piston method of tuning only works on pre-emissions carbs
(SU). That is because the SU needles were profiled to do that.
However that makes them run too rich to meet US emissions
standards.<div><br></div><div>The factory method is to use a gas sniffer.
So, yes, you should borrow a Gunson or similar
device.</div><div><br></div><div>Dave<br><br><div
id="ymail_android_signature"><a id="ymail_android_signature_link"
href="https://play.google.com/store/apps/details?id=com.aol.mobile.aolapp">Sent
from AOL on Android</a></div> <br> <blockquote style="margin: 0 0 20px 0;">
<div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Sat, Sep
21, 2024 at 17:59, dave northrup</div><div><dave@ranteer.com>
wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0;
border-left: 1px solid #6D00F6;"> <div id="yiv2097059035">
<div dir="ltr">
<div id="yiv2097059035divtagdefaultwrapper"
style="font-size:12pt;color:#000000;font-family:Calibri, Helvetica,
sans-serif;" dir="ltr">
<p>i have a 72 TR6 with triple carbs. the engine now has about 400 miles
on it, and i am pretty sure the carbs are too rich.</p>
<p><br>
</p>
<p>i am aware of the lift-a--piston method of tuning the carbs.</p>
<p><br>
</p>
<p>i am wondering if it is worth getting a gunson tuning setup or what is the
best method for ensuring the carbs are correctly tuned.</p>
<p><br>
</p>
<p>i know i need to ascertain the valve gap and timing first.</p>
</div>
</div>
</div>** <a ymailto="mailto:triumphs@autox.team.net"
href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a>
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</div> </blockquote></div>
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