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<div class="moz-cite-prefix">Bob,<br>
<br>
If you are worried about the exhaust valves, you can get your
local engine shop to install hardened valve seats. It is not
expensive. Bit of a chore to remove and install the head but it is
worth it.<br>
<br>
Others who have the stock valve seats have said they have seen no
wear with the unleaded gas.<br>
<br>
In my area, the only alcohol free gas is the 91 premium. At least
two companies have it at their pumps. I have been using it for
over 4 years. All my Triumphs sit for 6 months during winter, and
all I do is put some Stabil in on the last ride. Never had a
problem with bad gas in the Spring.<br>
<br>
And as Jonmac says, you may have to adjust your timing.<br>
<br>
Another Bob<br>
<br>
On 07/27/2017 05:35 AM, John Macartney wrote:<br>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Bob
– it’s important to mention that octane numbers in the UK /
Europe are different to those in North America because they
are calculated in different ways. The 97 octane figure you
quote is the UK/Europe value and this equates pretty close
to 90-91 in the US. You can use an octane booster if you
wish but some careful adjustment of the ignition settings to
avoid ‘pinging’ might be all you need to do?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Jonmac<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
lang="EN-US"> Triumphs
[<a class="moz-txt-link-freetext" href="mailto:triumphs-bounces@autox.team.net">mailto:triumphs-bounces@autox.team.net</a>] <b>On Behalf Of </b>Bob
Leaver<br>
<b>Sent:</b> 26 July 2017 23:49<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a><br>
<b>Subject:</b> [TR] Fuel<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have a new to me 65 TR4A and it states
to use 97 octane fuel. Does everyone add octane booster? I
have 87 octane available with no ethanol would this be good
enough. I also will add lead additive. <o:p></o:p></p>
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<p class="MsoNormal">Another problem is I have the two fuse
box with red wires to one fuse and green to the other
fuse. The fuse with the red wires to it has no power. What
does this run? Everything seems to be running on the car.
Thanks, Bob<o:p></o:p></p>
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